Beta Firmware/Apple Watch/4.x

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Revision as of 17:59, 30 May 2018 by IAdam1n (talk | contribs)
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Apple Watch (1st generation)

Watch1,1

Version Build Keys Release Date
watchOS iOS
4.0 beta 11.0 beta 15R5281f Watch1,1 5 June 2017
4.0 beta 2 11.0 beta 2 15R5307f Watch1,1 21 June 2017
4.0 beta 3 11.0 beta 3 15R5321h Watch1,1 13 July 2017
4.0 beta 4 11.0 beta 4 15R5331g Watch1,1 24 July 2017
4.0 beta 5 11.0 beta 5 15R5345g Watch1,1 7 August 2017
4.0 beta 6 11.0 beta 6 15R5357b Watch1,1 14 August 2017
4.0 beta 7 11.0 beta 7 15R5365a Watch1,1 21 August 2017
4.0 beta 8 11.0 beta 8 15R5371a Watch1,1 28 August 2017
4.0 GM 11.0 GM 15R372 Watch1,1 12 September 2017
4.1 beta 11.1 beta 15R5823c Watch1,1 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch1,1 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch1,1 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch1,1 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch1,1 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch1,1 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch1,1 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch1,1 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch1,1 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch1,1 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch1,1 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch1,1 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch1,1 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch1,1 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch1,1 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch1,1 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch1,1 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch1,1 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch1,1 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch1,1 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch1,1 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch1,1 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch1,1 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch1,1 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch1,1 30 May 2018

Watch1,2

Version Build Keys Release Date
watchOS iOS
4.0 beta 11.0 beta 15R5281f Watch1,2 5 June 2017
4.0 beta 2 11.0 beta 2 15R5307f Watch1,2 21 June 2017
4.0 beta 3 11.0 beta 3 15R5321h Watch1,2 13 July 2017
4.0 beta 4 11.0 beta 4 15R5331g Watch1,2 24 July 2017
4.0 beta 5 11.0 beta 5 15R5345g Watch1,2 7 August 2017
4.0 beta 6 11.0 beta 6 15R5357b Watch1,2 14 August 2017
4.0 beta 7 11.0 beta 7 15R5365a Watch1,2 21 August 2017
4.0 beta 8 11.0 beta 8 15R5371a Watch1,2 28 August 2017
4.0 GM 11.0 GM 15R372 Watch1,2 12 September 2017
4.1 beta 11.1 beta 15R5823c Watch1,2 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch1,2 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch1,2 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch1,2 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch1,2 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch1,2 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch1,2 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch1,2 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch1,2 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch1,2 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch1,2 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch1,2 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch1,2 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch1,2 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch1,2 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch1,2 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch1,2 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch1,2 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch1,2 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch1,2 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch1,2 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch1,2 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch1,2 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch1,2 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch1,2 30 May 2018

Apple Watch Series 1

Watch2,6

Version Build Keys Release Date
watchOS iOS
4.0 beta 11.0 beta 15R5281f Watch2,6 5 June 2017
4.0 beta 2 11.0 beta 2 15R5307f Watch2,6 21 June 2017
4.0 beta 3 11.0 beta 3 15R5321h Watch2,6 13 July 2017
4.0 beta 4 11.0 beta 4 15R5331g Watch2,6 24 July 2017
4.0 beta 5 11.0 beta 5 15R5345g Watch2,6 7 August 2017
4.0 beta 6 11.0 beta 6 15R5357b Watch2,6 14 August 2017
4.0 beta 7 11.0 beta 7 15R5365a Watch2,6 21 August 2017
4.0 beta 8 11.0 beta 8 15R5371a Watch2,6 28 August 2017
4.0 GM 11.0 GM 15R372 Watch2,6 12 September 2017
4.1 beta 11.1 beta 15R5823c Watch2,6 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch2,6 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch2,6 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch2,6 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch2,6 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch2,6 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch2,6 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch2,6 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch2,6 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch2,6 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch2,6 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch2,6 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch2,6 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch2,6 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch2,6 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch2,6 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch2,6 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch2,6 12 March 2018
4.3 beta 6 11.3 beta 6 15T5535b Watch2,6 16 March 2018
4.3.1 beta 11.4 beta 15T5212a Watch2,6 2 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch2,6 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch2,6 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch2,6 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch2,6 30 May 2018

Watch2,7

Version Build Keys Release Date
watchOS iOS
4.0 beta 11.0 beta 15R5281f Watch2,7 5 June 2017
4.0 beta 2 11.0 beta 2 15R5307f Watch2,7 21 June 2017
4.0 beta 3 11.0 beta 3 15R5321h Watch2,7 13 July 2017
4.0 beta 4 11.0 beta 4 15R5331g Watch2,7 24 July 2017
4.0 beta 5 11.0 beta 5 15R5345g Watch2,7 7 August 2017
4.0 beta 6 11.0 beta 6 15R5357b Watch2,7 14 August 2017
4.0 beta 7 11.0 beta 7 15R5365a Watch2,7 21 August 2017
4.0 beta 8 11.0 beta 8 15R5371a Watch2,7 28 August 2017
4.0 GM 11.0 GM 15R372 Watch2,7 12 September 2017
4.1 beta 11.1 beta 15R5823c Watch2,7 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch2,7 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch2,7 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch2,7 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch2,7 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch2,7 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch2,7 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch2,7 17 November 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch2,7 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch2,7 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch2,7 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch2,7 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch2,7 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch2,7 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch2,7 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch2,7 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch2,7 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch2,7 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch2,7 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch2,7 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch2,7 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch2,7 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch2,7 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch2,7 30 May 2018

Apple Watch Series 2

Watch2,3

Version Build Keys Release Date
watchOS iOS
4.0 beta 11.0 beta 15R5281f Watch2,3 5 June 2017
4.0 beta 2 11.0 beta 2 15R5307f Watch2,3 21 June 2017
4.0 beta 3 11.0 beta 3 15R5321h Watch2,3 13 July 2017
4.0 beta 4 11.0 beta 4 15R5331g Watch2,3 24 July 2017
4.0 beta 5 11.0 beta 5 15R5345g Watch2,3 7 August 2017
4.0 beta 6 11.0 beta 6 15R5357b Watch2,3 14 August 2017
4.0 beta 7 11.0 beta 7 15R5365a Watch2,3 21 August 2017
4.0 beta 8 11.0 beta 8 15R5371a Watch2,3 28 August 2017
4.0 GM 11.0 GM 15R372 Watch2,3 12 September 2017
4.1 beta 11.1 beta 15R5823c Watch2,3 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch2,3 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch2,3 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch2,3 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch2,3 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch2,3 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch2,3 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch2,3 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch2,3 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch2,3 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch2,3 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch2,3 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch2,3 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch2,3 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch2,3 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch2,3 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch2,3 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch2,3 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch2,3 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch2,3 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch2,3 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch2,3 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch2,3 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch2,3 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch2,3 30 May 2018

Watch2,4

Version Build Keys Release Date
watchOS iOS
4.0 beta 11.0 beta 15R5281f Watch2,4 5 June 2017
4.0 beta 2 11.0 beta 2 15R5307f Watch2,4 21 June 2017
4.0 beta 3 11.0 beta 3 15R5321h Watch2,4 13 July 2017
4.0 beta 4 11.0 beta 4 15R5331g Watch2,4 24 July 2017
4.0 beta 5 11.0 beta 5 15R5345g Watch2,4 7 August 2017
4.0 beta 6 11.0 beta 6 15R5357b Watch2,4 14 August 2017
4.0 beta 7 11.0 beta 7 15R5365a Watch2,4 21 August 2017
4.0 beta 8 11.0 beta 8 15R5371a Watch2,4 28 August 2017
4.0 GM 11.0 GM 15R372 Watch2,4 12 September 2017
4.1 beta 11.1 beta 15R5823c Watch2,4 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch2,4 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch2,4 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch2,4 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch2,4 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch2,4 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch2,4 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch2,4 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch2,4 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch2,4 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch2,4 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch2,4 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch2,4 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch2,4 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch2,4 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch2,4 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch2,4 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch2,4 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch2,4 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch2,4 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch2,4 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch2,4 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch2,4 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch2,4 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch2,4 30 May 2018

Apple Watch Series 3

Watch3,1

Version Build Keys Baseband Release Date
watchOS iOS
4.1 beta 11.1 beta 15R5823c Watch3,1 1.22.00 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch3,1 1.22.02-1 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch3,1 1.22.02 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch3,1 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch3,1 1.34.00 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch3,1 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch3,1 1.34.01 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch3,1 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch3,1 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch3,1 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch3,1 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch3,1 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch3,1 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch3,1 1.55.03 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch3,1 1.56.00 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch3,1 1.56.01 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch3,1 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch3,1 1.56.02 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch3,1 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch3,1 1.56.01 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch3,1 1.56.02 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch3,1 1.60.00 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch3,1 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch3,1 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch3,1 1.56.01 30 May 2018

Watch3,2

Version Build Keys Baseband Release Date
watchOS iOS
4.1 beta 11.1 beta 15R5823c Watch3,2 1.22.00 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch3,2 1.22.02-1 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch3,2 1.22.02 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch3,2 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch3,2 1.34.00 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch3,2 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch3,2 1.34.01 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch3,2 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch3,2 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch3,2 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch3,2 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch3,2 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch3,2 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch3,2 1.55.03 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch3,2 1.56.00 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch3,2 1.56.01 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch3,2 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch3,2 1.56.02 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch3,2 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch3,2 1.56.01 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch3,2 1.56.02 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch3,2 1.60.00 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch3,2 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch3,2 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch3,2 1.56.01 30 May 2018

Watch3,3

Version Build Keys Release Date
watchOS iOS
4.1 beta 11.1 beta 15R5823c Watch3,3 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch3,3 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch3,3 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch3,3 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch3,3 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch3,3 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch3,3 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch3,3 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch3,3 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch3,3 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch3,3 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch3,3 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch3,3 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch3,3 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch3,3 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch3,3 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch3,3 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch3,3 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch3,3 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch3,3 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch3,3 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch3,3 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch3,3 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch3,3 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch3,3 30 May 2018

Watch3,4

Version Build Keys Release Date
watchOS iOS
4.1 beta 11.1 beta 15R5823c Watch3,4 27 September 2017
4.1 beta 2 11.1 beta 2 15R5835d Watch3,4 9 October 2017
4.1 beta 3 11.1 beta 3 15R5843a Watch3,4 16 October 2017
4.1 beta 4 11.1 beta 4 15R846 Watch3,4 20 October 2017
4.2 beta 11.2 beta 15S5085b Watch3,4 30 October 2017
4.2 beta 2 11.2 beta 2 15S5090c Watch3,4 6 November 2017
4.2 beta 3 11.2 beta 3 15S5100a Watch3,4 13 November 2017
4.2 beta 4 11.2 beta 4 15S5102b Watch3,4 17 November 2017
4.2.2 beta 11.2.5 beta 15S5530d Watch3,4 13 December 2017
4.2.2 beta 2 11.2.5 beta 2 15S5534a Watch3,4 19 December 2017
4.2.2 beta 3 11.2.5 beta 3 15S5536a Watch3,4 3 January 2018
4.2.2 beta 4 11.2.5 beta 4 15S5540a Watch3,4 9 January 2018
4.2.2 beta 5 11.2.5 beta 5 15S542 Watch3,4 19 January 2018
4.3 beta 11.3 beta 15T5165e Watch3,4 25 January 2018
4.3 beta 2 11.3 beta 2 15T5176c Watch3,4 7 February 2018
4.3 beta 3 11.3 beta 3 15T5187e Watch3,4 21 February 2018
4.3 beta 4 11.3 beta 4 15T5199f Watch3,4 6 March 2018
4.3 beta 5 11.3 beta 5 15T5209a Watch3,4 12 March 2018
4.3 beta 6 11.3 beta 6 15T5212a Watch3,4 16 March 2018
4.3.1 beta 11.4 beta 15T5535b Watch3,4 2 April 2018
4.3.1 beta 2 11.4 beta 2 15T5545b Watch3,4 16 April 2018
4.3.1 beta 3 11.4 beta 3 15T5555c Watch3,4 1 May 2018
4.3.1 beta 4 11.4 beta 4 15T5565a Watch3,4 7 May 2018
4.3.1 beta 5 11.4 beta 5 15T5567a Watch3,4 14 May 2018
4.3.2 beta 11.4.1 beta 15U5053b Watch3,4 30 May 2018