Below is a table of the watchOS release dates. Also see Mac and iOS.


watchOS Version Date
watchOS 1.0 April 24, 2015
1.0.1 May 2015
watchOS 2.0 September 21, 2015
2.0.1 October 2015
2.1 December 2015
2.2 March 2016
2.2.1 May 2016
2.2.2 July 2016
watchOS 3.0 September 13, 2016
3.1 October 2016
3.1.3 January 2017
3.2 March 2017
3.2.2 May 2017
3.2.3 July 2017
watchOS 4.0 September 19, 2017
4.0.1 October 2017
4.1 October 2017
4.2 December 2017