watchOS 5.0 (build 16R5340g) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-08-06T17:11:56Z. The update package is 244.94 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: b4fdfbd446ef020bcffe559bd4290f7e4e5be834.zip.