watchOS 5.0 (build 16R5283q) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2018-06-05T09:53:09Z. The update package is 592.89 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: 7b0a0c10d058186140c2fdba7aab923326cdf92a.zip.