Beta Firmware/Apple Watch/6.x

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Apple Watch Series 1

Watch2,6

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch2,6 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch2,6 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch2,6 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch2,6 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch2,6 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch2,6 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch2,6 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch2,6 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch2,6 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch2,6 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch2,6 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch2,6 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch2,6 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch2,6 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch2,6 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch2,6 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch2,6 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch2,6 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch2,6 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch2,6 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch2,6 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch2,6 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch2,6 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch2,6 19 Feb 2020

Watch2,7

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch2,7 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch2,7 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch2,7 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch2,7 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch2,7 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch2,7 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch2,7 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch2,7 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch2,7 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch2,7 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch2,7 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch2,7 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch2,7 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch2,7 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch2,7 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch2,7 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch2,7 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch2,7 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch2,7 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch2,7 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch2,7 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch2,7 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch2,7 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch2,7 19 Feb 2020

Apple Watch Series 2

Watch2,3

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch2,3 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch2,3 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch2,3 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch2,3 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch2,3 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch2,3 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch2,3 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch2,3 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch2,3 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch2,3 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch2,3 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch2,3 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch2,3 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch2,3 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch2,3 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch2,3 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch2,3 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch2,3 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch2,3 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch2,3 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch2,3 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch2,3 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch2,3 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch2,3 19 Feb 2020

Watch2,4

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch2,4 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch2,4 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch2,4 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch2,4 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch2,4 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch2,4 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch2,4 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch2,4 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch2,4 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch2,4 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch2,4 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch2,4 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch2,4 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch2,4 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch2,4 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch2,4 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch2,4 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch2,4 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch2,4 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch2,4 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch2,4 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch2,4 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch2,4 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch2,4 19 Feb 2020

Apple Watch Series 3

Watch3,1

Version Build Keys Baseband Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch3,1 3.01.00 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch3,1 3.02.00 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch3,1 3.03.00 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch3,1 3.04.00 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch3,1 3.04.02 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch3,1 4.00.00 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch3,1 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch3,1 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch3,1 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch3,1 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch3,1 4.10.00 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch3,1 4.10.01 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch3,1 4.10.02 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch3,1 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch3,1 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch3,1 4.30.00 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch3,1 4.30.02 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch3,1 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch3,1 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch3,1 4.40.01 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch3,1 4.40.02 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch3,1 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch3,1 4.50.00 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch3,1 19 Feb 2020

Watch3,2

Version Build Keys Baseband Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch3,2 3.01.00 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch3,2 3.02.00 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch3,2 3.03.00 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch3,2 3.04.00 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch3,2 3.04.02 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch3,2 4.00.00 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch3,2 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch3,2 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch3,2 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch3,2 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch3,2 4.10.00 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch3,2 4.10.01 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch3,2 4.10.02 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch3,2 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch3,2 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch3,2 4.30.00 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch3,2 4.30.02 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch3,2 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch3,2 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch3,2 4.40.01 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch3,2 4.40.02 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch3,2 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch3,2 4.50.00 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch3,2 19 Feb 2020

Watch3,3

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch3,3 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch3,3 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch3,3 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch3,3 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch3,3 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch3,3 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch3,3 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch3,3 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch3,3 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch3,3 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch3,3 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch3,3 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch3,3 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch3,3 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch3,3 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch3,3 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch3,3 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch3,3 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch3,3 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch3,3 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch3,3 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch3,3 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch3,3 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch3,3 19 Feb 2020

Watch3,4

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch3,4 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch3,4 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch3,4 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch3,4 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch3,4 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch3,4 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch3,4 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch3,4 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch3,4 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch3,4 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch3,4 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch3,4 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch3,4 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch3,4 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch3,4 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch3,4 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch3,4 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch3,4 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch3,4 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch3,4 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch3,4 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch3,4 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch3,4 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch3,4 19 Feb 2020

Apple Watch Series 4

Watch4,1

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch4,1 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch4,1 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch4,1 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch4,1 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch4,1 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch4,1 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch4,1 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch4,1 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch4,1 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch4,1 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch4,1 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch4,1 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch4,1 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch4,1 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch4,1 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch4,1 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch4,1 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch4,1 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch4,1 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch4,1 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch4,1 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch4,1 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch4,1 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch4,1 19 Feb 2020

Watch4,2

Version Build Keys Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch4,2 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch4,2 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch4,2 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch4,2 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch4,2 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch4,2 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch4,2 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch4,2 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch4,2 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch4,2 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch4,2 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch4,2 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch4,2 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch4,2 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch4,2 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch4,2 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch4,2 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch4,2 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch4,2 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch4,2 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch4,2 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch4,2 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch4,2 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch4,2 19 Feb 2020

Watch4,3

Version Build Keys Baseband Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch4,3 1.51.02 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch4,3 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch4,3 1.53.23 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch4,3 1.54.21 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch4,3 1.55.03 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch4,3 2.00.01 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch4,3 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch4,3 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch4,3 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch4,3 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch4,3 2.01.03 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch4,3 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch4,3 2.01.04 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch4,3 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch4,3 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch4,3 2.01.03 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch4,3 2.01.04 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch4,3 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch4,3 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch4,3 2.01.03 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch4,3 2.02.00 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch4,3 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch4,3 2.03.02 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch4,3 2.03.04 19 Feb 2020

Watch4,4

Version Build Keys Baseband Release Date
watchOS iOS
6.0 beta 13.0 beta 17R5491t Watch4,4 1.51.02 3 Jun 2019
6.0 beta 2 13.0 beta 2 17R5507l Watch4,4 17 Jun 2019
6.0 beta 3 13.0 beta 3 17R5521e Watch4,4 1.53.23 2 Jul 2019
6.0 beta 4 13.0 beta 4 17R5532f Watch4,4 1.54.21 17 Jul 2019
6.0 beta 5 13.0 beta 5 17R5546f Watch4,4 1.55.03 30 Jul 2019
6.0 beta 6 13.0 beta 6 17R5556d Watch4,4 2.00.01 7 Aug 2019
6.0 beta 7 13.0 beta 7 17R5566a Watch4,4 15 Aug 2019
6.0 beta 8 13.0 beta 8 17R5571a Watch4,4 21 Aug 2019
6.0 beta 9 13.0 beta 9 17R5575a Watch4,4 27 Aug 2019
6.0 GM 13.0 GM 17R575 Watch4,4 11 Sep 2019
6.1 beta 13.1 beta 4 17S5054e Watch4,4 2.01.03 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch4,4 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch4,4 2.01.04 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch4,4 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch4,4 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch4,4 2.01.03 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch4,4 2.01.04 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch4,4 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch4,4 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch4,4 2.01.03 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch4,4 2.02.00 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch4,4 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch4,4 2.03.02 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch4,4 2.03.04 19 Feb 2020

Apple Watch Series 5

Watch5,1

Version Build Keys Release Date
watchOS iOS
6.1 beta 13.1 beta 4 17S5054e Watch5,1 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch5,1 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch5,1 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch5,1 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch5,1 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch5,1 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch5,1 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch5,1 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch5,1 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch5,1 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch5,1 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch5,1 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch5,1 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch5,1 19 Feb 2020

Watch5,2

Version Build Keys Release Date
watchOS iOS
6.1 beta 13.1 beta 4 17S5054e Watch5,2 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch5,2 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch5,2 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch5,2 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch5,2 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch5,2 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch5,2 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch5,2 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch5,2 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch5,2 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch5,2 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch5,2 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch5,2 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch5,2 19 Feb 2020

Watch5,3

Version Build Keys Baseband Release Date
watchOS iOS
6.1 beta 13.1 beta 4 17S5054e Watch5,3 2.01.03 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch5,3 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch5,3 2.01.04 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch5,3 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch5,3 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch5,3 2.01.03 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch5,3 2.01.04 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch5,3 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch5,3 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch5,3 2.01.03 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch5,3 2.02.00 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch5,3 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch5,3 2.03.02 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch5,3 2.03.04 19 Feb 2020

Watch5,4

Version Build Keys Baseband Release Date
watchOS iOS
6.1 beta 13.1 beta 4 17S5054e Watch5,4 2.01.03 23 Sep 2019
6.1 beta 2 13.2 beta 17S5059e Watch5,4 2 Oct 2019
6.1 beta 3 13.2 beta 2 17S5068e Watch5,4 2.01.04 10 Oct 2019
6.1 beta 4 13.2 beta 3 17S5076a Watch5,4 16 Oct 2019
6.1 beta 5 13.2 beta 4 17S5083a Watch5,4 23 Oct 2019
6.1.1 beta 13.3 beta 17S5433b Watch5,4 2.01.03 5 Nov 2019
6.1.1 beta 2 13.3 beta 2 17S5439a Watch5,4 2.01.04 12 Nov 2019
6.1.1 beta 3 13.3 beta 3 17S5446a Watch5,4 20 Nov 2019
6.1.1 beta 4 13.3 beta 4 17S5449b Watch5,4 5 Dec 2019
6.1.2 beta 13.3.1 beta 17S5775c Watch5,4 2.01.03 17 Dec 2019
6.1.2 beta 2 13.3.1 beta 2 17S5792a Watch5,4 2.02.00 14 Jan 2020
6.1.2 beta 3 13.3.1 beta 3 17S5796a Watch5,4 22 Jan 2020
6.2 beta 13.4 beta 17T5224g Watch5,4 2.03.02 5 Feb 2020
6.2 beta 2 13.4 beta 2 17T5234f Watch5,4 2.03.04 19 Feb 2020