WatchOS 2

WatchOS 2 is the second-generation OS for Apple Watch designed, developed and distributed by Apple.

watchOS 2.1

 * Based on iOS Version 9.2
 * Release Date: December 8th, 2015
 * Build Number: 13S661

watchOS 2.2

 * Based on iOS Version 9.3
 * Release Date: March 21st, 2016
 * Build Number: 13V144

watchOS 2.2.1

 * Based on iOS Version 9.3.2
 * Release Date: May 16th, 2016
 * Build Number: 13V420

watchOS 2.2.2

 * Based on iOS Version 9.3.3
 * Release Date: July 18th, 2016
 * Build Number: 13V604