watchOS 6.1.1 (build 17S5433b) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2019-11-05T18:17:52Z. The update package is 599.3 MB. This is a delta (partial) update that requires 6.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 16e724cfbfce7d1a27be6af3d284c07dba65c2be.zip.