watchOS 6.1.1 (build 17S5433b) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-11-05T18:17:57Z. The update package is 753.97 MB. This is a delta (partial) update that requires 5.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: ecb7c4553b5b60cde368dcc6b4bfae29df38dc19.zip.