watchOS 5.0 (build 16R5313d) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-07-03T17:10:56Z. The update package is 594.67 MB. This is a delta (partial) update that requires 4.2.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03ca66608bc44ed24110ecd0660355061d22a1b8.zip.