watchOS 3.0 (build 14S5315a) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2016-08-09T16:45:44Z. The update package is 556.47 MB. This is a delta (partial) update that requires 2.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 8fb6be056b848a27e8310749d727464d4826a65e.zip.