watchOS 6.1 (build 17S5083a) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-10-23T17:11:13Z. The update package is 746.67 MB. This is a delta (partial) update that requires 5.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: a953e49c9fd821a0ff08aeb9b4048add5a7ce590.zip.