watchOS 5.0 (build 16R5349a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-08-13T17:06:27Z. The update package is 495.44 MB. This is a delta (partial) update that requires 4.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 1194f161f5a2d3d8d3831f436c4b84fc28631a84.zip.