watchOS 5.3.8 (build 16U680) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2020-07-15T17:28:07Z. The update package is 37.81 MB. This is a delta (partial) update that requires 5.3.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 03ca64ebe788da178a88b0756b26f4d1dc3e52cd.zip.