watchOS 5.0 (build 16R5334f) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-07-30T17:10:15Z. The update package is 415.84 MB. This is a delta (partial) update that requires 5.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 79066cb3ddfcb999b17e23633917b86dea1639b3.zip.