watchOS 3.1 (build 14S6471) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2016-10-12T16:57:10Z. The update package is 320.11 MB. This is a delta (partial) update that requires 3.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2af887a46336495bd7fd959fc822e42e03045f16.zip.