< Firmware | Apple Watch
Apple Watch Series 1
Watch2,6
| Version | Build | Keys | Release Date | Download URL | SHA1 Hash | File Size | Release Notes |
|---|---|---|---|---|---|---|---|
| 6.1 | 17S84 | Watch2,6 | 29 October 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch2,6 | 10 December 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch2,6 | 28 January 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch2,6 | 18 February 2020 | ? | ? | ? | Release Notes |
| 6.2 | 17T529 | Watch2,6 | 24 March 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch2,6 | 8 April 2020 | ? | ? | ? | Release Notes |
| 6.2.5 | 17T608 | Watch2,6 | 18 May 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch2,6 | 1 June 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch2,6 | 15 July 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.9 | 17U203 | Watch2,6 | 5 November 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.3 | 17U208 | Watch2,6 | 14 December 2020 | ? | 88fc9d484de0538db3bef5775f929627cf461b04
|
1,921,663,378 | Release Notes Security Notes |
Watch2,7
| Version | Build | Keys | Release Date | Download URL | SHA1 Hash | File Size | Release Notes |
|---|---|---|---|---|---|---|---|
| 6.1 | 17S84 | Watch2,7 | 29 October 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch2,7 | 10 December 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch2,7 | 28 January 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch2,7 | 18 February 2020 | ? | ? | ? | Release Notes |
| 6.2 | 17T529 | Watch2,7 | 24 March 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch2,7 | 8 April 2020 | ? | ? | ? | Release Notes |
| 6.2.5 | 17T608 | Watch2,7 | 18 May 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch2,7 | 1 June 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch2,7 | 15 July 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.9 | 17U203 | Watch2,7 | 5 November 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.3 | 17U208 | Watch2,7 | 14 December 2020 | ? | e7c6a4c65d94ce3cec99a6914a500ad7920383c5
|
1,931,519,727 | Release Notes Security Notes |
Apple Watch Series 2
Watch2,3
| Version | Build | Keys | Release Date | Download URL | SHA1 Hash | File Size | Release Notes |
|---|---|---|---|---|---|---|---|
| 6.1 | 17S84 | Watch2,3 | 29 October 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch2,3 | 10 December 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch2,3 | 28 January 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch2,3 | 18 February 2020 | ? | ? | ? | Release Notes |
| 6.2 | 17T529 | Watch2,3 | 24 March 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch2,3 | 8 April 2020 | ? | ? | ? | Release Notes |
| 6.2.5 | 17T608 | Watch2,3 | 18 May 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch2,3 | 1 June 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch2,3 | 15 July 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.9 | 17U203 | Watch2,3 | 5 November 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.3 | 17U208 | Watch2,3 | 14 December 2020 | ? | 88fc9d484de0538db3bef5775f929627cf461b04
|
1,921,663,378 | Release Notes Security Notes |
Watch2,4
| Version | Build | Keys | Release Date | Download URL | SHA1 Hash | File Size | Release Notes |
|---|---|---|---|---|---|---|---|
| 6.1 | 17S84 | Watch2,4 | 29 October 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch2,4 | 10 December 2019 | ? | ? | ? | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch2,4 | 28 January 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch2,4 | 18 February 2020 | ? | ? | ? | Release Notes |
| 6.2 | 17T529 | Watch2,4 | 24 March 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch2,4 | 8 April 2020 | ? | ? | ? | Release Notes |
| 6.2.5 | 17T608 | Watch2,4 | 18 May 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch2,4 | 1 June 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch2,4 | 15 July 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.2.9 | 17U203 | Watch2,4 | 5 November 2020 | ? | ? | ? | Release Notes Security Notes |
| 6.3 | 17U208 | Watch2,4 | 14 December 2020 | ? | e7c6a4c65d94ce3cec99a6914a500ad7920383c5
|
1,931,519,727 | Release Notes Security Notes |
Apple Watch Series 3
Watch3,1
| Version | Build | Keys | Baseband | Release Date | Release Notes |
|---|---|---|---|---|---|
| 6.0 | 17R575 | Watch3,1 | 4.00.00 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch3,1 | 30 September 2019 | Release Notes | |
| 6.1 | 17S84 | Watch3,1 | 4.10.02 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch3,1 | 4.30.02 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch3,1 | 4.40.02 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch3,1 | 18 February 2020 | Release Notes | |
| 6.2 | 17T529 | Watch3,1 | 4.50.01 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch3,1 | 8 April 2020 | Release Notes | |
| 6.2.5 | 17T608 | Watch3,1 | 4.60.01 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch3,1 | 1 June 2020 | Release Notes Security Notes | |
| 6.2.8 | 17U63 | Watch3,1 | 4.70.01 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch3,1 | 26 January 2021 | Release Notes Security Notes |
Watch3,2
| Version | Build | Keys | Baseband | Release Date | Release Notes |
|---|---|---|---|---|---|
| 6.0 | 17R575 | Watch3,2 | 4.00.00 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch3,2 | 30 September 2019 | Release Notes | |
| 6.1 | 17S84 | Watch3,2 | 4.10.02 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch3,2 | 4.30.02 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch3,2 | 4.40.02 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch3,2 | 18 February 2020 | Release Notes | |
| 6.2 | 17T529 | Watch3,2 | 4.50.01 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch3,2 | 8 April 2020 | Release Notes | |
| 6.2.5 | 17T608 | Watch3,2 | 4.60.01 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch3,2 | 1 June 2020 | Release Notes Security Notes | |
| 6.2.8 | 17U63 | Watch3,2 | 4.70.01 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch3,2 | 26 January 2021 | Release Notes Security Notes |
Watch3,3
| Version | Build | Keys | Release Date | Release Notes |
|---|---|---|---|---|
| 6.0 | 17R575 | Watch3,3 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch3,3 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch3,3 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch3,3 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch3,3 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch3,3 | 18 February 2020 | Release Notes |
| 6.2 | 17T529 | Watch3,3 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch3,3 | 8 April 2020 | Release Notes |
| 6.2.5 | 17T608 | Watch3,3 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch3,3 | 1 June 2020 | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch3,3 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch3,3 | 26 January 2021 | Release Notes Security Notes |
Watch3,4
| Version | Build | Keys | Release Date | Release Notes |
|---|---|---|---|---|
| 6.0 | 17R575 | Watch3,4 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch3,4 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch3,4 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch3,4 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch3,4 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch3,4 | 18 February 2020 | Release Notes |
| 6.2 | 17T529 | Watch3,4 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch3,4 | 8 April 2020 | Release Notes |
| 6.2.5 | 17T608 | Watch3,4 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch3,4 | 1 June 2020 | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch3,4 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch3,4 | 26 January 2021 | Release Notes Security Notes |
Apple Watch Series 4
Watch4,1
| Version | Build | Keys | Release Date | Release Notes |
|---|---|---|---|---|
| 6.0 | 17R575 | Watch4,1 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R605 | Watch4,1 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch4,1 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch4,1 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch4,1 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch4,1 | 18 February 2020 | Release Notes |
| 6.2 | 17T529 | Watch4,1 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch4,1 | 8 April 2020 | Release Notes |
| 6.2.5 | 17T608 | Watch4,1 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch4,1 | 1 June 2020 | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch4,1 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch4,1 | 26 January 2021 | Release Notes Security Notes |
Watch4,2
| Version | Build | Keys | Release Date | Release Notes |
|---|---|---|---|---|
| 6.0 | 17R575 | Watch4,2 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R605 | Watch4,2 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch4,2 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch4,2 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch4,2 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch4,2 | 18 February 2020 | Release Notes |
| 6.2 | 17T529 | Watch4,2 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch4,2 | 8 April 2020 | Release Notes |
| 6.2.5 | 17T608 | Watch4,2 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch4,2 | 1 June 2020 | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch4,2 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch4,2 | 26 January 2021 | Release Notes Security Notes |
Watch4,3
| Version | Build | Keys | Baseband | Release Date | Release Notes |
|---|---|---|---|---|---|
| 6.0 | 17R575 | Watch4,3 | 2.00.01 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R605 | Watch4,3 | 2.00.03 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch4,3 | 2.01.04 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch4,3 | 10 December 2019 | Release Notes Security Notes | |
| 6.1.2 | 17S796 | Watch4,3 | 2.02.00 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch4,3 | 18 February 2020 | Release Notes | |
| 6.2 | 17T529 | Watch4,3 | 2.03.05 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch4,3 | 8 April 2020 | Release Notes | |
| 6.2.5 | 17T608 | Watch4,3 | 2.04.01 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch4,3 | 1 June 2020 | Release Notes Security Notes | |
| 6.2.8 | 17U63 | Watch4,3 | 15 July 2020 | Release Notes Security Notes | |
| 6.3 | 17U216 | Watch4,3 | 26 January 2021 | Release Notes Security Notes |
Watch4,4
| Version | Build | Keys | Baseband | Release Date | Release Notes |
|---|---|---|---|---|---|
| 6.0 | 17R575 | Watch4,4 | 2.00.01 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R605 | Watch4,4 | 2.00.03 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch4,4 | 2.01.04 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch4,4 | 10 December 2019 | Release Notes Security Notes | |
| 6.1.2 | 17S796 | Watch4,4 | 2.02.00 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch4,4 | 18 February 2020 | Release Notes | |
| 6.2 | 17T529 | Watch4,4 | 2.03.05 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch4,4 | 8 April 2020 | Release Notes | |
| 6.2.5 | 17T608 | Watch4,4 | 2.04.01 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch4,4 | 1 June 2020 | Release Notes Security Notes | |
| 6.2.8 | 17U63 | Watch4,4 | 15 July 2020 | Release Notes Security Notes | |
| 6.3 | 17U216 | Watch4,4 | 26 January 2021 | Release Notes Security Notes |
Apple Watch Series 5
Watch5,1
| Version | Build | Keys | Release Date | Release Notes |
|---|---|---|---|---|
| 6.0 | 17R575 | Watch5,1 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch5,1 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch5,1 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch5,1 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch5,1 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch5,1 | 18 February 2020 | Release Notes |
| 6.2 | 17T529 | Watch5,1 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch5,1 | 8 April 2020 | Release Notes |
| 6.2.5 | 17T608 | Watch5,1 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch5,1 | 1 June 2020 | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch5,1 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch5,1 | 26 January 2021 | Release Notes Security Notes |
Watch5,2
| Version | Build | Keys | Release Date | Release Notes |
|---|---|---|---|---|
| 6.0 | 17R575 | Watch5,2 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch5,2 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch5,2 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch5,2 | 10 December 2019 | Release Notes Security Notes |
| 6.1.2 | 17S796 | Watch5,2 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch5,2 | 18 February 2020 | Release Notes |
| 6.2 | 17T529 | Watch5,2 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch5,2 | 8 April 2020 | Release Notes |
| 6.2.5 | 17T608 | Watch5,2 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch5,2 | 1 June 2020 | Release Notes Security Notes |
| 6.2.8 | 17U63 | Watch5,2 | 15 July 2020 | Release Notes Security Notes |
| 6.3 | 17U216 | Watch5,2 | 26 January 2021 | Release Notes Security Notes |
Watch5,3
| Version | Build | Keys | Baseband | Release Date | Release Notes |
|---|---|---|---|---|---|
| 6.0 | 17R575 | Watch5,3 | 2.00.01 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch5,3 | 2.00.03 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch5,3 | 2.01.04 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch5,3 | 10 December 2019 | Release Notes Security Notes | |
| 6.1.2 | 17S796 | Watch5,3 | 2.02.00 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch5,3 | 18 February 2020 | Release Notes | |
| 6.2 | 17T529 | Watch5,3 | 2.03.05 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch5,3 | 8 April 2020 | Release Notes | |
| 6.2.5 | 17T608 | Watch5,3 | 2.04.01 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch5,3 | 1 June 2020 | Release Notes Security Notes | |
| 6.2.8 | 17U63 | Watch5,3 | 15 July 2020 | Release Notes Security Notes | |
| 6.3 | 17U216 | Watch5,3 | 26 January 2021 | Release Notes Security Notes |
Watch5,4
| Version | Build | Keys | Baseband | Release Date | Release Notes |
|---|---|---|---|---|---|
| 6.0 | 17R575 | Watch5,4 | 2.00.01 | 19 September 2019 | Release Notes Security Notes |
| 6.0.1 | 17R604 | Watch5,4 | 2.00.03 | 30 September 2019 | Release Notes |
| 6.1 | 17S84 | Watch5,4 | 2.01.04 | 29 October 2019 | Release Notes Security Notes |
| 6.1.1 | 17S449 | Watch5,4 | 10 December 2019 | Release Notes Security Notes | |
| 6.1.2 | 17S796 | Watch5,4 | 2.02.00 | 28 January 2020 | Release Notes Security Notes |
| 6.1.3 | 17S811 | Watch5,4 | 18 February 2020 | Release Notes | |
| 6.2 | 17T529 | Watch5,4 | 2.03.05 | 24 March 2020 | Release Notes Security Notes |
| 6.2.1 | 17T530 | Watch5,4 | 8 April 2020 | Release Notes | |
| 6.2.5 | 17T608 | Watch5,4 | 2.04.01 | 18 May 2020 | Release Notes Security Notes |
| 6.2.6 | 17T620 | Watch5,4 | 1 June 2020 | Release Notes Security Notes | |
| 6.2.8 | 17U63 | Watch5,4 | 15 July 2020 | Release Notes Security Notes | |
| 6.3 | 17U216 | Watch5,4 | 26 January 2021 | Release Notes Security Notes |