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OTA Updates/Apple Watch/7.3

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Apple Watch Series 3

Watch3,1

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A a668e47311471469ba903c2d1f673ef551689dc1.zip 426,327,231
7.1 beta 2 18R5561e 15 N/A 7b9bd21be7d9654d371d8246b85b87ad99410ff8.zip 375,664,594
7.1 beta 3 18R5572f 15 N/A 48fa5362e93ffb5c93d3aeb421838774c267f018.zip 338,788,046
7.1 beta 4 18R5585a 15 N/A 01471f0d24b1f700bffaf5d54115e68311669396.zip 329,275,323
7.2 beta 18S5545f 15 N/A e4da2fcdcd0a3a3ab83063499e507de48aa32d44.zip 270,094,220
7.2 beta 2 18S5555c 15 N/A b958965a3b9b3e03060d4ad40129aa8395022a7d.zip 244,405,106
7.2 beta 3 18S5561a 15 N/A c7726eb6db504b311498a481b531af4b1839d256.zip 244,026,232
7.3 beta 18S5780d 15 N/A 30a4a944ca2351d2b30d3f1ebaa1156688d5ea7f.zip 223,709,597
18S801 N/A 15 N/A 1a79d7030fa144e51d4333e3af69f64b7d8e2dce.zip 1,747,790,024
5.3.6 16U662 15 N/A 54bea1cf2759914d914edbdfb669f40ebf93d6b2.zip 1,250,049,690
5.3.7 16U674 15 N/A 105efde9b37d597652f6d82116bdf46eb75a1fed.zip 1,250,044,815
5.3.8 16U680 15 N/A 140a385b32fbf0c44f84ac233d722efa63939560.zip 1,250,024,062
6.0 17R575 15 N/A b8154f543e8833184c98fb878b46d0a62c4e0e85.zip 1,144,377,321
6.1 17S84 15 N/A 39371ec130222e537c489dfe390bd3e5a1bab592.zip 1,080,997,828
6.1.1 17S449 15 N/A a6ca1bd85f8cf1f2a672450d26ff5a8ec175a487.zip 1,080,677,423
6.1.2 17S796 15 N/A a7ecdc5806210abbfe591f7b08b1765d24a59bd8.zip 1,080,391,799
6.1.3 17S811 15 N/A 7a1cc1562557f3d2b31ea93cba190db23c2ad525.zip 1,080,394,734
6.2 17T529 15 N/A 2af7fe9c76c6950863b52c85d8142bb6050c19bf.zip 1,066,229,797
6.2.1 17T530 15 N/A cc99529543dcaafb2ccf9303ad856ba30863d633.zip 1,066,230,093
6.2.5 17T608 15 N/A f712d87ff25a04fd2cb0047162f4ad32eb81501e.zip 1,065,407,240
6.2.6 17T620 15 N/A 70c54d2d64599ee74916fddbcfa58494ba9fde9e.zip 1,065,408,061
6.2.8 17U63 15 N/A de22507d59d783adb16dd2b79e3e98cfffafb667.zip 1,066,061,398
7.0 18R382 15 N/A 4fe551fb4a2b5bb57da7029568e6d7ba3720b4b2.zip 459,700,616
7.0.1 18R395 15 N/A 78599a49f230937f439ea5373914a871ef8bbecc.zip 459,635,172
7.0.2 18R402 15 N/A 019e6dbee94c2b9777fff61835c373375a1d9d51.zip 459,597,127
7.0.3 18R410 15 N/A 094a85eff2e8c0b7cf3c07768810b1414903d6a2.zip 459,592,706
7.1 RC 18R589 15 N/A 733b9bd5a25b3aab7704907615235f4e8de1c4d0.zip 327,838,152
7.1 18R590 15 N/A 564ed88b376ad67f57f59e936ee0d846b47f298f.zip 327,823,402
7.2 18S563 15 N/A d4eb10ca739644a60d66f3bc597126705a41c050.zip 229,878,252

Watch3,2

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 50a28458091efb804c4fb8e5a13643e0dc4b3530.zip 426,349,722
7.1 beta 2 18R5561e 15 N/A f44ec9e53881356b2cb7fc3d098b627ad37cbad1.zip 375,645,537
7.1 beta 3 18R5572f 15 N/A 847284356f45f350d527cac8de3917e1e3cec59f.zip 338,776,661
7.1 beta 4 18R5585a 15 N/A 25e85280b463ea88e90c1c7516a500acd12a2d54.zip 329,246,625
7.2 beta 18S5545f 15 N/A 5432807e3dae2dc1b5d8bce8a9747d0323831a1f.zip 270,113,029
7.2 beta 2 18S5555c 15 N/A b040aee0b37d9bfbbdbc05e03016d25d71b4fe1b.zip 244,427,386
7.2 beta 3 18S5561a 15 N/A ceaebb36be79853c7ba5c91c95236da62393b3fc.zip 244,056,596
7.3 beta 18S5780d 15 N/A 5592911b55bbc74c7192c68d238f1e57d68d45a6.zip 223,727,421
18S801 N/A 15 N/A 463a217ceb7757a5599dcfdc5a960ef7812d75b3.zip 1,756,627,986
5.3.6 16U662 15 N/A b40202d847b3236ae2b120e52a6ccb3942284e9e.zip 1,253,282,395
5.3.7 16U674 15 N/A ccec5d32d86fd931c4c0ad870712a944180352e7.zip 1,253,277,468
5.3.8 16U680 15 N/A f1808d423155cb43c4ff30ae65036f69153769aa.zip 1,253,256,495
6.0 17R575 15 N/A adb2c564f84d56e49eae1f69571d7f9a28fbbb41.zip 1,146,059,592
6.1 17S84 15 N/A b5fcffae3e6e0606ff0c38dfac70ae3edbd0e096.zip 1,082,706,922
6.1.1 17S449 15 N/A 6bfa5cb3c592f77c6034d6abe26fa750ed89838f.zip 1,082,375,457
6.1.2 17S796 15 N/A 457196633ca655d4024cd2e6e0c2f323d9826944.zip 1,082,081,939
6.1.3 17S811 15 N/A c676684b859b658c678e57652ff561b0ae0db620.zip 1,082,080,696
6.2 17T529 15 N/A 89a55604d0e7b7819c4e5527cb3188f0df255ca9.zip 1,068,076,303
6.2.1 17T530 15 N/A b3c90d94f7283840eaf7185125d6d24e291c1e21.zip 1,068,079,309
6.2.5 17T608 15 N/A 65bdc876bd1adb72da8131d26fc28ae95ff6422c.zip 1,067,221,924
6.2.6 17T620 15 N/A 9acdf94bd626c705d625a36f9bd3f4922cf46206.zip 1,067,224,003
6.2.8 17U63 15 N/A 36fb98135d4d6657716d983460d03340a3a9e38b.zip 1,067,908,991
7.0 18R382 15 N/A 264e7b30a4f66b6a8616bb5f982d9173e5f71985.zip 459,604,121
7.0.1 18R395 15 N/A 03ab82f7949587559abb676e39c7e09427ed5be6.zip 459,593,515
7.0.2 18R402 15 N/A dcf4005b0fdabc093285d066fe0c3764a60817b5.zip 459,556,172
7.0.3 18R410 15 N/A 63c46fa85641af8f7a8f71e8c8992994bade9d0f.zip 459,553,797
7.1 RC 18R589 15 N/A 37bf4adeacdb469d0ecf3283453aec41b3118e17.zip 327,805,651
7.1 18R590 15 N/A 57e15fca21d3fd132368e6f9dbada2ac828204dc.zip 327,790,274
7.2 18S563 15 N/A f1c2e7788ffaec6b2edfa2b89aa147f2ce931694.zip 229,901,969

Watch3,3

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A c8121f34144b29c0981531065bcd97d23991130e.zip 396,471,440
7.1 beta 2 18R5561e 15 N/A 1519d18cb738948163c559b172b996bc06b3e1fc.zip 346,005,270
7.1 beta 3 18R5572f 15 N/A 9a97d125795e1a6c2258c1c0a8856d1c0070ca65.zip 310,932,266
7.1 beta 4 18R5585a 15 N/A a34936a1248f2d42a673a326b6ccc032370ad1de.zip 301,355,523
7.2 beta 18S5545f 15 N/A b8fa6deeedf9c50981809e56d926456138672363.zip 241,182,456
7.2 beta 2 18S5555c 15 N/A 168781de1eb563ff5ca30ff3d0e4bfce0eb90875.zip 215,249,495
7.2 beta 3 18S5561a 15 N/A d7e4ae80c507c5a0b3eca633360943c1ead53b8e.zip 214,922,101
7.3 beta 18S5780d 15 N/A 58c7db4879efdc55de974d7d7f860ef727efda2e.zip 194,148,424
18S801 N/A 15 N/A 132868da00c3dfa72043c9775ac56148d1259e64.zip 1,679,950,097
5.3.6 16U662 15 N/A 02e0412c48dd449d8b35226d7ab1f481f79d12c2.zip 1,212,082,202
5.3.7 16U674 15 N/A 1dff4c5f9f09fcef60bf5634139dd563b3084755.zip 1,212,078,890
5.3.8 16U680 15 N/A 0b9074956e21a8d0c1b89c40e781d8fa8b1dca76.zip 1,212,058,140
6.0 17R575 15 N/A e7419235d9f90a4c464a083d5d2461c3c1f0fde7.zip 1,104,707,776
6.1 17S84 15 N/A 1fa47ab43e4cc1d789e2210c5bd68e075bcfcc8c.zip 1,042,059,508
6.1.1 17S449 15 N/A 724f8ca4f0b7703ef866a122274865f8737892be.zip 1,041,662,280
6.1.2 17S796 15 N/A 364a7a76ebea65eb495d5105652f6e9ca806c2a2.zip 1,042,289,433
6.1.3 17S811 15 N/A 7ffc4c9866e8d7ac8a4a16b5d8c9f50b23f53a7c.zip 1,042,291,629
6.2 17T529 15 N/A 7e6c82e4bfbf6f3c2741987b34f488bda29d9ccd.zip 1,027,578,285
6.2.1 17T530 15 N/A 146cb4db017395862933ad00f0254143165810d8.zip 1,027,576,948
6.2.5 17T608 15 N/A 334ff74da80a1ef487002ca4245d60290e05cf12.zip 1,027,686,278
6.2.6 17T620 15 N/A 3d3002e367e8c9cd570c4b0290810b28c75ee8a8.zip 1,027,687,537
6.2.8 17U63 15 N/A b3d2f214fb721ea3772a852a093ab4a0d6149055.zip 1,027,506,682
7.0 18R382 15 N/A 060624e7c8c4e5bef57561b03c9d071175342c69.zip 430,482,026
7.0.1 18R395 15 N/A 17c4dcca341f1eb15b6f450b281a4bea42d07408.zip 430,452,413
7.0.2 18R402 15 N/A 12eaf260bfff2a23117889684210065ec2dfbfab.zip 430,409,832
7.0.3 18R410 15 N/A c68488743ef06094a059a1dae9b80784a166770f.zip 430,408,470
7.1 RC 18R589 15 N/A e95b4bcf19857b04842ea9a14011458867a19bc8.zip 299,452,269
7.1 18R590 15 N/A 1563ff49d522adb732dcec040772b7681011ec4f.zip 299,428,490
7.2 18S563 15 N/A 462f1b5ad20cd116613ac7370e4d45cc8f211af5.zip 200,984,134

Watch3,4

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 671f6f4382dba2296b30d81060479f72da674bc9.zip 396,488,461
7.1 beta 2 18R5561e 15 N/A 9dbda946a2f1ef130532ef74ca0677ccca58da0e.zip 345,986,408
7.1 beta 3 18R5572f 15 N/A 8a8f94ce9c0735e8b1b567e3bfde196b1038c8a6.zip 310,920,623
7.1 beta 4 18R5585a 15 N/A a3369c3f1012ef4ed8ecfbe5eaae6dd6308e3fad.zip 301,346,176
7.2 beta 18S5545f 15 N/A 81789cbe0ccd48d0b05880f5a24caff427264941.zip 241,207,034
7.2 beta 2 18S5555c 15 N/A 121027986f9005b58d2df342ccfb62187892136d.zip 215,276,929
7.2 beta 3 18S5561a 15 N/A d6550d661fea6e7f7d5bb060c624c167fcfa2325.zip 214,951,523
7.3 beta 18S5780d 15 N/A 410389b3b040b892a45fe5e0ba139c0ef17af3f1.zip 194,177,452
18S801 N/A 15 N/A 5b8a5f07dc1a199452bcd316a3909755eeebf79c.zip 1,689,443,894
5.3.6 16U662 15 N/A dfe129a70b09e8993ef85b955f64ceaa88013071.zip 1,215,434,306
5.3.7 16U674 15 N/A 4e3f13334b385e4fc6e54d72efb437620fcbe971.zip 1,215,436,038
5.3.8 16U680 15 N/A 2a3bd79bcfdfc06816e0ed01a234c60a16096d12.zip 1,215,412,761
6.0 17R575 15 N/A 780eaeb6654427b5365117360e617c5ff043a6d4.zip 1,106,561,687
6.1 17S84 15 N/A d14e438915d278ca9b7935ac600a62be50f72bb4.zip 1,043,851,502
6.1.1 17S449 15 N/A dbdfd7c46942538a437e16e9796004adcde62080.zip 1,043,484,313
6.1.2 17S796 15 N/A 7076f26b5477b225b1b5230af93fe23977afc43e.zip 1,044,117,694
6.1.3 17S811 15 N/A 000536f00db4cc9c98b6396f90e559ab83f5a593.zip 1,044,121,455
6.2 17T529 15 N/A 36455b5b95d22af214a10ddf71cb1f59f3990bb6.zip 1,029,337,453
6.2.1 17T530 15 N/A f9714292dd4184b29b319a610835eebc9e7d9f7a.zip 1,029,337,125
6.2.5 17T608 15 N/A 9cef591fe9af438c3159b5137f22b168019b960b.zip 1,029,462,371
6.2.6 17T620 15 N/A 32e3bf50d74103ae7bb7e2bf4601f63e6f26e58a.zip 1,029,464,605
6.2.8 17U63 15 N/A 37908a7c35551fcc76706ea31156bef150901c4c.zip 1,029,298,065
7.0 18R382 15 N/A 9609fba7a25b83de5af369980090b3909c4606de.zip 430,507,516
7.0.1 18R395 15 N/A 6cfc99583955fb7a4a1b630d276457f591096452.zip 430,434,699
7.0.2 18R402 15 N/A f98f7c042594e4f43ea56bf6544bdcdcf3e876cd.zip 430,395,659
7.0.3 18R410 15 N/A 7035a67b56bf231355f95efdcf3d994a5bc27044.zip 430,389,910
7.1 RC 18R589 15 N/A 722ee39bfed49ba6fbbb4e96ab7c13a1168ee126.zip 299,438,769
7.1 18R590 15 N/A 56ff9c10d7142e3b1a591e8b75b211524a9efa6b.zip 299,413,510
7.2 18S563 15 N/A aa182ffdef2a4eb9ffb941a2999ddf6ebe039e47.zip 201,030,036

Apple Watch Series 4

Watch4,1

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 0a07b13b749bbaf3fd2e781bba9697e25f6e8544.zip 411,560,480
7.1 beta 2 18R5561e 15 N/A f977ff254b16f78079650525461a847a5c7670b3.zip 355,749,367
7.1 beta 3 18R5572f 15 N/A 93e693568752e108ca105076ba1ffaa54076f90b.zip 319,885,417
7.1 beta 4 18R5585a 15 N/A 95239360ac2ef78d1c2f6b96cd548e0d5b0058f7.zip 308,812,095
7.2 beta 18S5545f 15 N/A c3481f968845ca93181f9b26e6b6dd31138f8565.zip 220,170,563
7.2 beta 2 18S5555c 15 N/A 07ce38d84902e26a7ad7f5c825051b43b6d37595.zip 193,568,630
7.2 beta 3 18S5561a 15 N/A e2ec11ef06bfda7545190ce5674486bc482b042f.zip 192,742,491
7.3 beta 18S5780d 15 N/A 6c5371a55a92a0ea3fe6b22f4cfe7ae05cfe3a16.zip 168,590,609
18S801 N/A 15 N/A cf7e6e1624d3981d2690321e58b101fd39c32fcb.zip 1,763,381,736
5.3.6 16U662 15 N/A 1a6e4dd81dc24afb4ccecfc8f005cc17731e5c62.zip 1,264,562,927
5.3.7 16U674 15 N/A b99e0e33ea559417f7295ec19747f75d78c28f89.zip 1,264,561,561
5.3.8 16U680 15 N/A bde32b5e9660ab0ae12d1027c60b3f7f4519c5f0.zip 1,264,547,717
6.0 17R575 15 N/A 9daa88666e32fb50f79a4092d9aeccc2e5c57bca.zip 1,154,194,399
6.0.1 17R605 15 N/A 59cf57f3e73a7297f6932d16975950babaf18b02.zip 1,154,150,381
6.1 17S84 15 N/A 522dec6615ecfc82ef93c2182060e6e090ce4723.zip 1,090,137,708
6.1.1 17S449 15 N/A 5ce623a5c709767cd52a827ba3a52a2b1b8eb5a1.zip 1,089,758,643
6.1.2 17S796 15 N/A 6e601df681db2ff73ec7b59f939cbfbf76d76acb.zip 1,090,091,219
6.1.3 17S811 15 N/A cc866a024ad04310864d93a8dfc753309dae2d1b.zip 1,090,091,510
6.2 17T529 15 N/A f1f73ac9a583e855ac5d5583c7e9ad66e833fe97.zip 1,073,815,581
6.2.1 17T530 15 N/A 1e2e87ef686cfd1d6246d85267617068ce1cca05.zip 1,073,815,328
6.2.5 17T608 15 N/A 577b6651fd6bc5b47aec1c05041f7c7964ad2bf4.zip 1,073,867,046
6.2.6 17T620 15 N/A b5843f4ef68b1aaee875e7267880abc355064475.zip 1,073,862,824
6.2.8 17U63 15 N/A baa6debb1b59065c15aa866bee20efba6631d3c7.zip 1,073,691,019
7.0 18R382 15 N/A 1e4b37f2d1c854c90c4d9a311cd797f5c7bacb03.zip 462,823,271
7.0.1 18R395 15 N/A 15344d22596ae36594587f4747c8cd80749a2e16.zip 462,766,354
7.0.2 18R402 15 N/A 4154ba5d398c458d857cec8e3b524fdb3acefab2.zip 462,726,342
7.1 RC 18R589 15 N/A c38c6b125dbca8060c251fcd51a2bb10c50e064f.zip 307,995,469
7.1 18R590 15 N/A 16c93c600679de47e023fc978c76f1bab92abc9b.zip 307,989,563
7.2 18S563 15 N/A 2bc876432450d69700fcb20d2c601015f72bf621.zip 172,940,671

Watch4,2

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 79130421222f4ab0d5c3ec7c9128f4b424071ef0.zip 414,319,041
7.1 beta 2 18R5561e 15 N/A 8b51969c0f0ed6b6e5c1646c8e8731262e146d9c.zip 355,422,711
7.1 beta 3 18R5572f 15 N/A 804903ba14b018d4e9d062ba12350ca90f4972ee.zip 319,376,279
7.1 beta 4 18R5585a 15 N/A 5cab4547ac1ff0dd63ed43d32a80ac8b4c9e6782.zip 308,306,240
7.2 beta 18S5545f 15 N/A 47f6788434b39d94ccac2cc2cea4c1acbf883c87.zip 220,341,336
7.2 beta 2 18S5555c 15 N/A 659b4c2aa5ac29a0ff2cd1e702830c9061eba725.zip 193,636,424
7.2 beta 3 18S5561a 15 N/A e3663f94a7b5bacfcb2e8207f7fa3f1b7b910fa4.zip 192,807,035
7.3 beta 18S5780d 15 N/A 466cac5a357c19e9ad78c2bcf3d9941924c36939.zip 168,653,669
18S801 N/A 15 N/A f113accc7fb8524aa4caf7d460676c786f7ab5ea.zip 1,738,313,294
5.3.6 16U662 15 N/A 1b4b6d1d71ce99e2a421c1314af7a4b4a2ff147d.zip 1,275,196,871
5.3.7 16U674 15 N/A 884f8ace8f3bed83f4a7cf04bacd23b163c7c53f.zip 1,275,193,388
5.3.8 16U680 15 N/A 2721f9f4519fe44b8dd47ea4d4451a5741399d99.zip 1,275,180,114
6.0 17R575 15 N/A 8836e31b18b34f9cccf194515d5352e9a969fb89.zip 1,159,007,517
6.0.1 17R605 15 N/A 9317c9b6a382ac421e513a4abb3c7ffb074920ac.zip 1,158,993,550
6.1 17S84 15 N/A 29349aacb2a96be70ac252467a0ca0adcc5861e7.zip 1,095,325,969
6.1.1 17S449 15 N/A 8b4cae02d3db8f44605fe9a0836721cf25decdcf.zip 1,094,920,991
6.1.2 17S796 15 N/A e25ce2080b63069299b162db0a225db5ce5aaf6f.zip 1,095,030,806
6.1.3 17S811 15 N/A 0c7879f2b6a6ff8520f37ab927931ce6118b9af9.zip 1,095,029,412
6.2 17T529 15 N/A f0d64ce9ac4b19a6823061d97d1745078a3fd433.zip 1,080,225,313
6.2.1 17T530 15 N/A da89d837c224412b6ce529177723f5f3613b6bc4.zip 1,080,222,904
6.2.5 17T608 15 N/A d470aa05cf56cff2a76bf35bece737de713e7959.zip 1,080,246,830
6.2.6 17T620 15 N/A eb44a039c690015ff72a20b249ad4d5ac3d1214d.zip 1,080,243,952
6.2.8 17U63 15 N/A bec6c6b9476ecd065206ff04ee1d7c60dc245bd3.zip 1,080,071,022
7.0 18R382 15 N/A b3be1163f40a899bbd633d48e9eaff381b24d46e.zip 462,481,161
7.0.1 18R395 15 N/A 4cbed17f191609963f799996a19128af2214e7e5.zip 462,422,086
7.0.2 18R402 15 N/A 8540b1d3331aad6daadeed961e8b36c1835d1946.zip 462,380,018
7.1 RC 18R589 15 N/A 6227e61ccc65fae89be9c601807baac5594bc74f.zip 307,478,809
7.1 18R590 15 N/A b1715bf38e7189543e02208b9ae7fe5f980976f1.zip 307,487,811
7.2 18S563 15 N/A 5c556e158e6d0e51056f3a10f08975ea8c53bd87.zip 173,015,670

Watch4,3

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 8e2160476e54dad3a6362f39649e275262959ad0.zip 433,448,403
7.1 beta 2 18R5561e 15 N/A e0d91758864467eed54190c4cef728427abc7a40.zip 379,070,090
7.1 beta 3 18R5572f 15 N/A 2ea288f0bd0b000ae084bd8e8c72f0cedc96a167.zip 328,644,277
7.1 beta 4 18R5585a 15 N/A 9c8c882906c0e465b6251a5f519aeaf64c2844e6.zip 318,019,806
7.2 beta 18S5545f 15 N/A 0d81b462863e3249d9ac7043633355b3bcfa3485.zip 223,745,603
7.2 beta 2 18S5555c 15 N/A 7606fcbd51a1b02045082a9944867f56cbebb3af.zip 201,817,451
7.2 beta 3 18S5561a 15 N/A 98aba6cc0e28003bf9de28607f5a7dad241127fb.zip 201,173,101
7.3 beta 18S5780d 15 N/A 4b03463b322df9264b708691e54020c8c8019966.zip 186,057,592
18S801 N/A 15 N/A 348f1ea458ebe2ae6b460579aeab38c873a2c7d3.zip 1,804,440,429
5.3.6 16U662 15 N/A 674fe97ed5f342b2d1c6f0130609bcce1c962e41.zip 1,296,864,211
5.3.7 16U674 15 N/A 25e57762726af97b2d4ea2f241d486d2693ae63d.zip 1,296,863,043
5.3.8 16U680 15 N/A d5a32721882a251313cb571995cc9c8d6fad3456.zip 1,296,849,572
6.0 17R575 15 N/A 77a1dbc1f9f72342c1f42014f40d0d32a592dee8.zip 1,184,680,775
6.0.1 17R605 15 N/A 019df007155e1a9add4e1e9b200de3742f8789e4.zip 1,184,740,105
6.1 17S84 15 N/A 6e8636806e77ebf2e5a4c0e55e831439ac8adb42.zip 1,120,919,638
6.1.1 17S449 15 N/A 7e5548329dc1832f3e316a9b25466b6cbacaa0ad.zip 1,120,719,537
6.1.2 17S796 15 N/A eca24a5914e122650ffb2f880bef4631bdac8738.zip 1,119,986,902
6.1.3 17S811 15 N/A 92161833fb10a5f1688b65f1d1329b0844f7b480.zip 1,119,988,417
6.2 17T529 15 N/A d9c752fea19b6fd1a0a16727860a848a3155aad1.zip 1,106,290,022
6.2.1 17T530 15 N/A aea805a940a5fa83400591b0e46feadce1a5f762.zip 1,106,290,575
6.2.5 17T608 15 N/A 61c369df6096e3a8470d7ed495026545a7076748.zip 1,106,003,042
6.2.6 17T620 15 N/A 655966847cd560973436a49ddf9e443cc0ce745c.zip 1,105,999,257
6.2.8 17U63 15 N/A bda6bbf4b0b4c45e389eddc776c456c80db4b054.zip 1,105,841,786
7.0 18R382 15 N/A 0641fad67a7bb566b5a6f0beee013014a2c971fa.zip 483,484,585
7.0.1 18R395 15 N/A 7b51dff6d6a099f4e05c7b027abc0ec41c31805d.zip 483,511,981
7.0.2 18R402 15 N/A ce6493c41c5a2be8db61d459184fc95c1fbbd9ac.zip 483,583,264
7.1 RC 18R589 15 N/A 7de5a15a63072271892c3d8a8d81c890c011a976.zip 316,606,189
7.1 18R590 15 N/A 731041b9d7405e0d9231e9267185de5442794a5d.zip 316,604,412
7.2 18S563 15 N/A 7a99b49944f76cc9d955cea6fffe3779cf1463fd.zip 180,389,915

Watch4,4

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A a9673bef880eca6bfe78d67d633dc6bb4168ce83.zip 435,238,525
7.1 beta 2 18R5561e 15 N/A e756736755ad0100425be411c9a3b7ba14f2b370.zip 378,760,926
7.1 beta 3 18R5572f 15 N/A 7d799cd828fbf0bcb3a5bebc362ccc7b55cc83d3.zip 328,126,350
7.1 beta 4 18R5585a 15 N/A 8b3878f93ada3cb23ea5de06eaf4b22163320f62.zip 317,491,151
7.2 beta 18S5545f 15 N/A 2989f5d14aee25b58a4432a9536b6c30f4021fca.zip 223,913,524
7.2 beta 2 18S5555c 15 N/A 9942bb8004508ee192a038cfd2a0b302a5b6f281.zip 201,918,916
7.2 beta 3 18S5561a 15 N/A be5d19dc4469e09405ceb30d8f1e29fbf9f446ed.zip 201,241,859
7.3 beta 18S5780d 15 N/A 6fc0c3882bcac9304092fd2966a163f9c0d71819.zip 186,114,795
18S801 N/A 15 N/A b1020088ee1c2a5585d1cb1f3b024d87a018b5d4.zip 1,780,783,290
5.3.6 16U662 15 N/A 6ca264c2aaebab076eb3cf0dd781a69faa245924.zip 1,305,994,563
5.3.7 16U674 15 N/A 002ed57e5dd57c142ac47948dfb119f7b1e6693a.zip 1,305,991,770
5.3.8 16U680 15 N/A 7cddf936eec7a85c08ca9891ff9193634f623bbd.zip 1,305,977,904
6.0 17R575 15 N/A f3dbbd458835fe6dc3436209f3cef99db386fdea.zip 1,189,898,624
6.0.1 17R605 15 N/A bc8a0b40536f6209dc00b1b4a14615b6170562e6.zip 1,189,955,148
6.1 17S84 15 N/A 425f105f786ebecd39a98a65e8b40ed45e93331e.zip 1,125,615,151
6.1.1 17S449 15 N/A 4ca3e272d4033657a61c2aac12b6b15b565bba19.zip 1,125,326,821
6.1.2 17S796 15 N/A 6b48191e57a7aaef96187386062c3733aca20afb.zip 1,125,815,955
6.1.3 17S811 15 N/A 22bf21d77bea1e0cf2c63f06ec0d369c249ee980.zip 1,125,816,213
6.2 17T529 15 N/A f3deb0afe1272a2e2d99e2e9ea8a057529939d69.zip 1,110,183,780
6.2.1 17T530 15 N/A adb7c8851572997f6ca28e6a6205dcf6d6faae69.zip 1,110,185,371
6.2.5 17T608 15 N/A c2843713fe951606b795c306cbe3fb35d7a75948.zip 1,110,340,332
6.2.6 17T620 15 N/A 4add4bf3c679f655f990b847e635ab3023163e68.zip 1,110,341,032
6.2.8 17U63 15 N/A b7a03ec759d312f82f094f435d73170e4fe804e7.zip 1,110,171,754
7.0 18R382 15 N/A 931d60402b485577e8601979c71101e9dd991d07.zip 483,164,315
7.0.1 18R395 15 N/A 1dae54bc6331194bc2666ca677ab2d8180547e84.zip 483,166,130
7.0.2 18R402 15 N/A 59ab90331b8bbaa158bd3a49c3696a091201931a.zip 483,238,623
7.1 RC 18R589 15 N/A 4991c3a08a0f0f368f2cc53a7b23eb230bc0346e.zip 316,066,629
7.1 18R590 15 N/A cf6ba47b2d2a071c997a6a7edcf23ddca1907990.zip 316,081,039
7.2 18S563 15 N/A f10a1c7c15ab6f7240008900593aace2445ff498.zip 180,450,948

Apple Watch Series 5

Watch5,1

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 72ca4aa880fab68d6688559eff195cc85a7a9606.zip 412,230,912
7.1 beta 2 18R5561e 15 N/A d7d68461ffb6cdf387cfbf425e112970c380c120.zip 355,962,546
7.1 beta 3 18R5572f 15 N/A 0987acb8d0fe2ff041be93ca6b53416de45d775f.zip 320,083,310
7.1 beta 4 18R5586a 15 N/A 6c34db16f3b8950a1b45d358d4fd2c7aa1433537.zip 309,549,779
7.2 beta 18S5545f 15 N/A 1a7101357924bfd38ac2661122a4e40afdea0d49.zip 220,686,117
7.2 beta 2 18S5555c 15 N/A 64a36f637e4e59a9a0c9b05c49711bbc1f14d03d.zip 193,998,443
7.2 beta 3 18S5561a 15 N/A df70d0960347e4b00a82bedaabb4674eb9524a1c.zip 193,166,853
7.3 beta 18S5780d 15 N/A 918dcd9520f0e92ba6add35813c440a9a5b9e128.zip 168,998,999
18S801 N/A 15 N/A 8dc76215a6563ee39e9230ee536c420833a8d7d1.zip 1,764,355,737
6.0 17R575 15 N/A 5d778fe2ae7e9b295700701c6efffaf08315e667.zip 1,155,374,154
6.1 17S84 15 N/A 490b40f5dc0429ae19f4cb466f24b0b8efd22392.zip 1,091,241,794
6.1.1 17S449 15 N/A 4b7e4959b3671c893dc3bf42f1d22a02f669b92d.zip 1,090,950,044
6.1.2 17S796 15 N/A 259a489fb001d5962d04fafc9a9e824878b3063b.zip 1,091,020,760
6.1.3 17S811 15 N/A 25e66398612a3a4b146be5bb41164fdf8b367e69.zip 1,091,019,039
6.2 17T529 15 N/A d2b6b58a16c6270cf49952d6eee73df546191cc7.zip 1,074,674,301
6.2.1 17T530 15 N/A c3b6124111c9863b8b2c075f126d62aa7bc0ebae.zip 1,074,674,374
6.2.5 17T608 15 N/A bc6e0d76f3f59773a78376717eee449ff464f004.zip 1,074,736,776
6.2.6 17T620 15 N/A 24f0f9e85eefe43522a9c80e2ce62efb18fb539a.zip 1,074,736,290
6.2.8 17U63 15 N/A a2682581f5c23f6e1bd9d664e8a887c1220dfcb7.zip 1,074,571,737
7.0 18R382 15 N/A 337a7ec1a14e0d75d37ee8a3d3d0d384ef35835c.zip 463,243,020
7.0.1 18R395 15 N/A d68422563ce054495c4969e93eaaaf19b3fe5947.zip 463,256,949
7.0.2 18R402 15 N/A 00b84a853253957f238e5298482fa5c2cb96e302.zip 463,409,731
7.1 RC 18R589 15 N/A d336d8eb97848ac15d4af2458dc372d6b19908a1.zip 308,123,752
7.1 18R590 15 N/A 1f6ef2fd4e87c04c645231efcf7a4ffc784139ed.zip 308,123,164
7.2 18S563 15 N/A c87ab07949662ae5837376f5df0335fe65ec80fe.zip 173,382,906

Watch5,2

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 24f2e5e742c569b79a196f4828d70c95a6b25b30.zip 414,983,559
7.1 beta 2 18R5561e 15 N/A b8f572cb6d2699ac041c0724a060f61de2a47589.zip 355,648,464
7.1 beta 3 18R5572f 15 N/A c35c08fdad8f2bf48e721dfce761e76c00443477.zip 319,563,072
7.1 beta 4 18R5585a 15 N/A c420cbb88d85537bbf530a24022e70a0f98b50dd.zip 309,018,124
7.2 beta 18S5545f 15 N/A 34f56b15eeea824db47c8e275f0997f2eebecb5d.zip 220,841,997
7.2 beta 2 18S5555c 15 N/A 5125682c4d01bf0f32e532f34445dcb99439b6bb.zip 194,068,361
7.2 beta 3 18S5561a 15 N/A d46e790025f37b92f237f61de8be623100d7d20c.zip 193,242,951
7.3 beta 18S5780d 15 N/A 5d46c44db10798d3396f9eddd4437276f3d37eac.zip 169,067,862
18S801 N/A 15 N/A ddd21ed57594d8cbec59b4f35e877ea7a4a1da45.zip 1,739,398,999
6.0 17R575 15 N/A 9d9f4857a4e4a55996079584f46745a2286e6fc3.zip 1,160,145,466
6.1 17S84 15 N/A 3aa0e397b001df3e98279a20ab5679145439d554.zip 1,096,401,952
6.1.1 17S449 15 N/A 0e800ce352b54caa5b201c8c774392b0fa0f497c.zip 1,096,218,324
6.1.2 17S796 15 N/A ab7e300548723e84c977f485c3565d1984e4a3f4.zip 1,095,914,090
6.1.3 17S811 15 N/A c4fc99cd57fa7007262d363df3e223de3fc46d47.zip 1,095,918,006
6.2 17T529 15 N/A 8e822144d728f40bce17b844d6303ce7d319154b.zip 1,081,068,648
6.2.1 17T530 15 N/A a449784af3a9d27bd918c917c6818c2fc1cf7455.zip 1,081,068,455
6.2.5 17T608 15 N/A 4b3579be7403d1b4fd7b9d874bbb0a4cfd8710ca.zip 1,081,072,055
6.2.6 17T620 15 N/A 8a1022945fb1bb73fa13c2e80300e1c1e840882f.zip 1,081,068,749
6.2.8 17U63 15 N/A 0aca9e8ccd441703dd7eceef73670e8de2f389a1.zip 1,080,904,143
7.0 18R382 15 N/A 0bce6cd5203e1c6729d1b2ae4fade8b8404857e6.zip 462,924,570
7.0.1 18R395 15 N/A ed2402160f596117f586aca7ec48fc1fe32408e1.zip 462,922,146
7.0.2 18R402 15 N/A 0498b335952242f8ae068677ae099338f5ef69e6.zip 463,076,614
7.1 RC 18R589 15 N/A bfc70f29ce540e40ec699f1dc77bf42bfa209efa.zip 307,602,819
7.1 18R590 15 N/A e8168025b98d9052454c64d19fca18a0539154b7.zip 307,595,217
7.2 18S563 15 N/A efc8ea2cbb232f65b99b237b34cd2fe40acc2d8b.zip 173,439,905

Watch5,3

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A bd0ff6cfe08aecb171a4b28a10018c861237182a.zip 435,236,954
7.1 beta 2 18R5561e 15 N/A 419f4a98247f03617ed38bf647dd32fd7aa95444.zip 379,630,756
7.1 beta 4 18R5585a 15 N/A f737b0af54a22520c69a06abbbbe6a11938a34e0.zip 318,435,474
7.2 beta 18S5545f 15 N/A 6547b789ca4e3bf3cd8c974c74dcf353abe036e4.zip 224,173,980
7.2 beta 2 18S5555c 15 N/A 32256b4da3685bff9fe75efa7e6803ef1ee54be7.zip 202,261,595
7.2 beta 3 18S5561a 15 N/A acdd5897495367a3751c3f12e505366c9a8a5c1a.zip 201,623,998
7.3 beta 18S5780d 15 N/A 21de20283ca5b5977ed31fda429f35722bb70687.zip 186,476,798
18S801 N/A 15 N/A 95469c91266592a1f3d7432c5f6862e72b5911bc.zip 1,805,578,777
6.0 17R575 15 N/A a1db89c7c3e1cab7fdd09c73aebf436929122245.zip 1,185,857,013
6.1 17S84 15 N/A 4e95e2ba1240ff74d8c29f85b1e021f54c70331e.zip 1,122,015,132
6.1.1 17S449 15 N/A 98a77130230841d071946b9f2e6013d91406e6fe.zip 1,121,789,363
6.1.2 17S796 15 N/A 863328fdd7e3574a1c2b0cf4d196f237a355cd3a.zip 1,120,874,208
6.1.3 17S811 15 N/A d128cdf41b27f32c02a1d5620570e4fe786b1628.zip 1,120,873,548
6.2 17T529 15 N/A 85ccce32861893606537b4589500e67ad22cf9a6.zip 1,107,212,796
6.2.1 17T530 15 N/A ade4938bf7527afba273621685b61b3b2a1db649.zip 1,107,213,730
6.2.5 17T608 15 N/A f18a0ae1cc915286a91fa5e3e72975d9bdb381bd.zip 1,106,984,657
6.2.6 17T620 15 N/A 58fe932882641b241b55b2559d881c1ccde44740.zip 1,106,982,729
6.2.8 17U63 15 N/A 0a9a7e58735401b88618f3812e740dcd54263220.zip 1,106,829,689
7.0 18R382 15 N/A bf60cf2cd552be7ab7683740c897850c3c865161.zip 484,082,419
7.0.1 18R395 15 N/A e24b95a2921cd82d096a4a54c04927c9e8fdfe45.zip 484,058,632
7.0.2 18R402 15 N/A 17e3f564fd08c4b74c815b7fda844c3d9b03b6a6.zip 484,010,719
7.1 RC 18R589 15 N/A 71b4c26eb438230003573742b41a354ef4092e24.zip 317,042,517
7.1 18R590 15 N/A 13afa28845f1366742f1f86d7bbba3f63e4b25a2.zip 317,047,935
7.2 18S563 15 N/A 600a2881137cc56280c6904c7871eec82e1f691b.zip 180,826,260

Watch5,4

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 286586d2c0b6ba7e926e40b2bfcc2610ed436ea1.zip 437,031,105
7.1 beta 2 18R5561e 15 N/A f9c5191a7643f642eb03038a9df4ef9cb66b55b3.zip 379,306,752
7.1 beta 4 18R5585a 15 N/A 5b2162535c731dc9fef873c3d5af716a0798fc53.zip 317,890,074
7.2 beta 18S5545f 15 N/A 44065a403a34dbd1e920eda4797a12657cb2f1b1.zip 224,346,583
7.2 beta 2 18S5555c 15 N/A f5ba6db8228b55dde26f674d9f60d68d9651f3bb.zip 202,338,383
7.2 beta 3 18S5561a 15 N/A c66afae3086052b4bdc45cd774cf8cdc80c4f899.zip 201,697,615
7.3 beta 18S5780d 15 N/A e8f9a90a27f7bd85b860ba510e74ef19ebd2d2d6.zip 186,553,962
18S801 N/A 15 N/A d5ab30028ebfe0841a337ce17714b9bd401c29f7.zip 1,782,451,886
6.0 17R575 15 N/A 10a461ee4a9b1e131e3098fe1bdf92b8858bdf46.zip 1,190,965,032
6.1 17S84 15 N/A 38a00c76a0522f14d1a85637dc419d50b2c1d2d4.zip 1,126,863,313
6.1.1 17S449 15 N/A d6bd7f6f053f4ff33512ff33fb8cbc845a6b8c0e.zip 1,126,604,150
6.1.2 17S796 15 N/A 0f98197de5c168efdf7d31ce95b4edfc4c8bed73.zip 1,126,904,960
6.1.3 17S811 15 N/A a59f8c0ef7f2a35ceb4f61fabf9d133bb771d6bf.zip 1,126,906,895
6.2 17T529 15 N/A 8f5eea8da179c220189450453206794369a440a9.zip 1,111,083,770
6.2.1 17T530 15 N/A 27b38e71bcb5d80003ccd773ed57e4faed32a500.zip 1,111,083,553
6.2.5 17T608 15 N/A 6aa66e7b45117c03d4dd4dcc00afdc35391fd068.zip 1,111,270,103
6.2.6 17T620 15 N/A 94d78dd414bf37ef578393706fc16ef5baa35b10.zip 1,111,267,782
6.2.8 17U63 15 N/A 8e4a7ce6c26287213ae57484f716378a3f80d3ae.zip 1,111,105,197
7.0 18R382 15 N/A cdee5f81d2ee443cc0ecde810a365b44558fcdc3.zip 483,761,644
7.0.1 18R395 15 N/A 8887150154c2223eed52399461ba46a65ee26465.zip 483,711,190
7.0.2 18R402 15 N/A f78ffda52d306c70dcc0b5e24caa49f8a484b040.zip 483,660,880
7.1 RC 18R589 15 N/A b34126e24dcb07f938c9e39fd24338bc8fd46ac7.zip 316,531,502
7.1 18R590 15 N/A a9790a8e435b777c2f41cd31e8b966f958814a0a.zip 316,532,547
7.2 18S563 15 N/A 77a39470c2c74eeecbadced223d3a1f173a69b44.zip 180,890,816

Apple Watch SE

Watch5,9

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 2eb7734078dfa5c6f938cd69a07571bd68d101eb.zip 412,274,872
7.1 beta 2 18R5561e 15 N/A 365272265109d1ddf9832475b49c0263ce66e92d.zip 356,037,075
7.1 beta 3 18R5572f 15 N/A 8bc8f3721cd6e436ff8682e02004b4864e0b13b2.zip 320,133,153
7.1 beta 4 18R5585a 15 N/A da5b0745b1e6eb72d66747a9be1e83fc99101735.zip 309,585,368
7.2 beta 18S5545f 15 N/A a958f3418291d0b72af939ce8e20f37dfa9b9a5a.zip 220,730,111
7.2 beta 2 18S5555c 15 N/A c9fb35ce95c57ef5d1e9be4e42e63b5864057efa.zip 194,041,678
7.2 beta 3 18S5561a 15 N/A e97d2db4f03d5744bb1423a0b819cde7a1b3ae4d.zip 193,207,638
7.3 beta 18S5780d 15 N/A 477ca70ad69d8dda898fa695a63ee74590f6291f.zip 169,028,322
18S801 N/A 15 N/A cf37ae536d9d946b89d47da923e474ae3f786fff.zip 1,764,098,975
7.0 18R382 15 N/A 99bf9aefba9269f6472a3612368e6269e4985d56.zip 463,274,936
7.0.1 18R395 15 N/A defd741dddbc2b98defe5df19bd0233c7f323961.zip 463,274,447
7.0.2 18R402 15 N/A e8561e7629c5be74270d85707c657afd34fb1d57.zip 463,440,757
7.1 RC 18R589 15 N/A 91361021bb72ac23f5d315abc9e064d9a53ce97a.zip 308,176,740
7.1 18R590 15 N/A 7f8849eb90c12b1d8a09bb837f481fad8f9de843.zip 308,180,873
7.2 18S563 15 N/A c22970b0e574a6baa1d4316f4191951c5326f6b1.zip 173,417,087

Watch5,10

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 57b4656c188d5f09e4edf74e21fab08bf9e117af.zip 415,052,480
7.1 beta 2 18R5561e 15 N/A fba12ec16fa4854544e2a5dd406a91d39565e67d.zip 355,729,081
7.1 beta 3 18R5572f 15 N/A 3a2a6b72025facb345eda107a510a1985958a7ea.zip 319,616,872
7.1 beta 4 18R5585a 15 N/A 2581e557516bff707c34527b7f997ffd460236dc.zip 309,061,582
7.2 beta 18S5545f 15 N/A 3d6f9b0cc0f243f8b97d504b1c907e67a65cea0e.zip 220,897,970
7.2 beta 2 18S5555c 15 N/A 2030a5d1e97f8df43bdd5764b9bae1fc4bb2c44c.zip 194,133,172
7.2 beta 3 18S5561a 15 N/A f8297fea224883229342f613563571de611e302b.zip 193,294,981
7.3 beta 18S5780d 15 N/A 50989804157997e4c4dcad4290465ec1b71a3c9a.zip 169,122,093
18S801 N/A 15 N/A f5c6055e047d4f97e9de67032a02c01b85c05d20.zip 1,739,368,565
7.0 18R382 15 N/A bacc5142acd8a146e6a3dee469fdade8571590ac.zip 462,976,498
7.0.1 18R395 15 N/A b1e204b129521a379e97d97c26c0869b17b500cf.zip 462,967,438
7.0.2 18R402 15 N/A 58d3e23ec5a2071472292d049a7cc44901551d40.zip 463,132,647
7.1 RC 18R589 15 N/A c9f68c9f9a4ce3f44a8e5963d23b2ca1b357461c.zip 307,670,886
7.1 18R590 15 N/A cd3177bdaf844830fac7853e48f3aaa62e9cdc43.zip 307,661,201
7.2 18S563 15 N/A 036d5bef6990a6caf742a06f36f64e3629700834.zip 173,495,467

Watch5,11

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 5241621d4330198278ad2466775fa8da126f1135.zip 434,655,516
7.1 beta 2 18R5561e 15 N/A a3d3c52912b0f64e52d3141d8a3e82d981afdb16.zip 379,057,173
7.1 beta 3 18R5572f 15 N/A b23ae10b8647be828b471122c1b73220196a64c7.zip 328,965,580
7.1 beta 4 18R5585a 15 N/A 5537650164a1377843f516366390a6c5c4f824e8.zip 317,850,111
7.2 beta 18S5545f 15 N/A 44fc8aacb181053c2253c2c893bc942735b5d237.zip 223,629,664
7.2 beta 2 18S5555c 15 N/A 3fd243cf1c2acda9c00dacf9159536d427adf6d5.zip 201,661,085
7.2 beta 3 18S5561a 15 N/A 3073b84c7e08071eeb26d9835376d1baad6131b5.zip 201,022,330
7.3 beta 18S5780d 15 N/A 75f6b6fa41f09c50eb110804dad042f1aa6db476.zip 185,883,822
18S801 N/A 15 N/A e8573370eb7eadfe3d78f5542ee925055480c176.zip 1,804,463,943
7.0 18R382 15 N/A 694f93174c73a5aa15e2e3b41888f8cafe2e4a38.zip 483,498,550
7.0.1 18R395 15 N/A d6786b09d574a61f3c8d4fe3a22675352cedbed9.zip 483,474,792
7.0.2 18R402 15 N/A 60c9e54ab25272154e536cab94270c6fedb49877.zip 483,440,190
7.1 RC 18R589 15 N/A be8b629a7116a5c8eec3c50bb6a4aa4b7dd0106d.zip 316,409,966
7.1 18R590 15 N/A 905e392aca93ed802121d3a6f4817dffb347c57b.zip 316,422,132
7.2 18S563 15 N/A 55ad7b29ae28ac86f112129c008f0ce67d7e37ac.zip 180,218,802

Watch5,12

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 06a549a91d2b05c8a17193df5207a17622ee5e91.zip 436,475,099
7.1 beta 2 18R5561e 15 N/A 9247a0536cd03bce97227a7a73c52568a494abce.zip 378,715,566
7.1 beta 3 18R5572f 15 N/A 3e4b381c36c6c8b2cc4bfb17254db61fe28b966a.zip 328,434,222
7.1 beta 4 18R5585a 15 N/A a4d4fd1b928a210a8ca4dd87964f9eb72070a21a.zip 317,315,875
7.2 beta 18S5545f 15 N/A fff862d896564d3c93802d5c5dd85b74646fd77b.zip 223,802,373
7.2 beta 2 18S5555c 15 N/A 720a1ab63a4a94c93d8ed3bde538c997bd71c42a.zip 201,721,268
7.2 beta 3 18S5561a 15 N/A 1c5aa7185fe4ccfe00c53786bfea6d4db7569208.zip 201,082,012
7.3 beta 18S5780d 15 N/A 22f8decd6da7946f09239150c1fc4dc9e9a02ab2.zip 185,955,347
18S801 N/A 15 N/A f5e1ae1b22a7d08f7859601248c52da06f78cd72.zip 1,781,126,135
7.0 18R382 15 N/A deaa7be2bb15bab8afe93d0fd0a077825d98f817.zip 483,140,883
7.0.1 18R395 15 N/A 1f78a3545d8758413a3254169b5adb9019cffd2c.zip 483,126,739
7.0.2 18R402 15 N/A d9932635c73bce8c737bf1e52b4b6e24df4c1fc1.zip 483,093,114
7.1 RC 18R589 15 N/A a3294b3ab62310263e47aa9b6a12a8e1edc7c76c.zip 315,871,004
7.1 18R590 15 N/A 8cda3b9f117d36163bb5e8ff254cbf94bed0d590.zip 315,882,324
7.2 18S563 15 N/A b70bb5ac22cba904a4215c5df8ca01ae21f7a5a4.zip 180,287,999

Apple Watch Series 6

Watch6,1

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A e9db0445d296bcd3186499c3b9c315094a8c3e45.zip 402,653,526
7.1 beta 2 18R5561e 15 N/A 5b9c475e6a0a38d1571be8b484823fa4716798ca.zip 345,566,102
7.1 beta 3 18R5572f 15 N/A 208cd2efd29261694e5efb8eabd3495c5379b824.zip 309,674,955
7.1 beta 4 18R5585a 15 N/A fbefffd2603818950db7c1749ab5dcecc200996c.zip 299,142,022
7.2 beta 18S5545f 15 N/A e0362387dd97abaf9fe3345ab6fff42e3c5f9a58.zip 210,261,847
7.2 beta 2 18S5555c 15 N/A 67790378ef22856c231b5c4a213976e33cac11c4.zip 183,532,375
7.2 beta 3 18S5561a 15 N/A 3b9b849737374824d8059ee95475e0dc07227190.zip 182,706,948
7.3 beta 18S5780d 15 N/A 96876da459ccb7a688b84ad21541465ffbd84be6.zip 158,699,724
18S801 N/A 15 N/A 2135777519fdb5ba9a161de0208ff3599d5583ab.zip 1,753,961,417
7.0 18R382 15 N/A 4f82eefedc3b407629fcf6f7835465d9764945b3.zip 453,030,550
7.0.1 18R395 15 N/A 345d3da3bdfaa1114941a77e6bb598e9ceb5bb55.zip 453,047,835
7.0.2 18R402 15 N/A 27530541bb3668365604cbf0990b73be7c0ec1ad.zip 453,199,476
7.1 RC 18R589 15 N/A 53f84a9a0c5c6a8843d27afb6096c95c63bf3f40.zip 297,720,671
7.1 18R590 15 N/A e5735605a973e6c107278207279ebd994e3543bc.zip 297,717,720
7.2 RC 18S563 15 N/A 3212037b9d2c78df1bfe46fc1a6d333a963f9cb0.zip 162,927,950
7.2 18S564 15 N/A d3c5b0e6dfd78b66c54b38727021706ae247c8eb.zip 162,943,716

Watch6,2

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 57bf5a9e479111feea44a547a8284706bdec0a25.zip 405,210,015
7.1 beta 2 18R5561e 15 N/A 496b05759cf70df8c8ef26ca27c1eb208ba87320.zip 345,270,380
7.1 beta 3 18R5572f 15 N/A dbd4158db55caaedbe55199763c6c532a780b667.zip 309,149,959
7.1 beta 4 18R5585a 15 N/A a59aba63d3958be53441533db3ec0318165891a3.zip 298,624,831
7.2 beta 18S5545f 15 N/A 01b0451080d094cf327e49776e949e80d0879a56.zip 210,420,504
7.2 beta 2 18S5555c 15 N/A e0df5a2e8d3a81e5c11e8b782e916872b949751c.zip 183,614,146
7.2 beta 3 18S5561a 15 N/A ae9d8a76fd22d6d20da0f9d1ed8db2de525cb688.zip 182,783,094
7.3 beta 18S5780d 15 N/A 88de5a421dc274b0ef890f1c9f126b292569d54f.zip 158,782,184
18S801 N/A 15 N/A 65da715b0bf5c29f1c1764ee28aa5b6b134d634a.zip 1,729,065,093
7.0 18R382 15 N/A a86faed34ddaf460013c0e6f2c216be7446cc2c2.zip 452,718,248
7.0.1 18R395 15 N/A b9e37295db3e851f16b42d5fbf044117242fe810.zip 452,717,361
7.0.2 18R402 15 N/A 17fb9283dc340431164162e84956b39be0cce68f.zip 452,870,984
7.1 RC 18R589 15 N/A 1128fa2a4d8833b764d743435d8fa0ee91996004.zip 297,227,974
7.1 18R590 15 N/A 95c94103b20778e15d0401388694a92ac7947d19.zip 297,222,983
7.2 RC 18S563 15 N/A 3a8829bbf1d0407731090d38f13665703ee1542b.zip 162,990,466
7.2 18S564 15 N/A 08c130ede545c09493caf60090b1769966b288b5.zip 163,007,497

Watch6,3

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 53d292578b55f629f4073519d119ec8c138bbe68.zip 425,054,145
7.1 beta 2 18R5561e 15 N/A 5c1f15f453cbc85e03038c823b7087241581f814.zip 368,621,478
7.1 beta 3 18R5572f 15 N/A eb078f47e9966ee1d1d2d99545e9fe07bca97b76.zip 318,552,029
7.1 beta 4 18R5585a 15 N/A fc40d8ba7a27a88e036d5ee8dcf43b636df84b6e.zip 307,397,600
7.2 beta 18S5545f 15 N/A e1787f6beb311dbe9eb81b8caa5ee8f51495a1b7.zip 213,173,958
7.2 beta 2 18S5555c 15 N/A f5215d46065c47064ff7390c34131c11d4f2bbc9.zip 191,166,900
7.2 beta 3 18S5561a 15 N/A ea00a3ef456536b8f31bc966a530a0cf24765772.zip 190,512,838
7.3 beta 18S5780d 15 N/A 38209804570f65267715b9afa3e2c198a14ebfa6.zip 175,367,862
18S801 N/A 15 N/A 86a8a4af9f3d3f544fdee65198ab5958b35e5f6e.zip 1,794,339,106
7.0 18R382 15 N/A dfde17fab7d065c9f73d5c34d9cb76bd471c2395.zip 473,472,293
7.0.1 18R395 15 N/A 6762ccc8081f9d25f888fbfc57a455b8a7355b98.zip 473,418,696
7.0.2 18R402 15 N/A 761a1acc9c05ef811e3ff21526e0e59e8c13b51a.zip 473,365,180
7.1 RC 18R589 15 N/A 96f02757f1fb1bf8d4c7387c8624554c46244556.zip 305,955,228
7.1 18R590 15 N/A 2c03e56d625f1bf7976f0f725f148112e07c44dd.zip 305,965,577
7.2 RC 18S563 15 N/A 11b0a888eaa68bf17f83b5509f7eaeb8d28bc834.zip 170,079,506
7.2 18S564 15 N/A 9b8e6acab475bc7e191a0c318aa21ce954210c81.zip 170,090,559

Watch6,4

Version Build Prerequisite Version Prerequisite Build Compatibility Version Release Date Release Type OTA Download URL File Size
7.3 18S801[1] 7.1 beta 18R5552f 15 26 January 2021 N/A 9d0fef12b9a22f197a234a94af7689faed8fbb91.zip 426,211,228
7.1 beta 2 18R5561e 15 N/A 66e162da061d328658c7d360ea7e9ce14f0c7f06.zip 368,284,594
7.1 beta 3 18R5572f 15 N/A e55e092db4a8cb18239b17c73d251851a7835150.zip 318,101,025
7.1 beta 4 18R5585a 15 N/A 1bb9f503bdfd808ab710d94a92f6006142427346.zip 306,862,597
7.2 beta 18S5545f 15 N/A 02e2e249134419118668ae74f335aee32b7881b4.zip 213,354,198
7.2 beta 2 18S5555c 15 N/A 0a67b9dfb8bb3a96a768490c10e9e3cf7d5897b7.zip 191,235,169
7.2 beta 3 18S5561a 15 N/A da71e24bf4fa8e17bacd7315beb7134b9cfae996.zip 190,581,909
7.3 beta 18S5780d 15 N/A 9c895ac2ec8f5cc934f787e25b40e33b6a2dd207.zip 175,443,043
18S801 N/A 15 N/A e9cb84bbec7d19150df4c4f2bc888e0ad7f3b0cc.zip 1,771,246,566
7.0 18R382 15 N/A 8a8adb42d5d5f79e4fb8f0385af7fc218d9dd73f.zip 473,130,916
7.0.1 18R395 15 N/A fad74636ae948db73b9406d6c47681b12a9231dd.zip 473,073,455
7.0.2 18R402 15 N/A 43c88963d2fe0dfc539e8cea9e39ee3fad557557.zip 473,017,212
7.1 RC 18R589 15 N/A b490909fecfd0857497cfcabebca15c34efc58bd.zip 305,435,094
7.1 18R590 15 N/A 0aa08300a30817958ba897e4cce427a019ca3177.zip 305,428,162
7.2 RC 18S563 15 N/A 5dae1c95d95da1ac73d45ff8f14f8445da95ced1.zip 170,149,300
7.2 18S564 15 N/A 15fb6b1ac9d003a56f99fbae75caa24373e32c20.zip 170,163,241

Notes

  1. ^ a b c d e f g h i j k l m n o p q r s t Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 18S801 was listed as 18S6801.)
    The listings on this page use the build number displayed on the device.
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