watchOS 5.1.1 (build 16R6600) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-11-05T18:05:29Z. The update package is 412.42 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: d758d02d47ad69c68c79a49e56c0e1c49d5ac3a8.zip.