watchOS 6.1.1 (build 17S5433b) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-11-05T18:18:40Z. The update package is 315.91 MB. This is a delta (partial) update that requires 6.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: d01acdc9343153361de2b5810932e2c62dbd4657.zip.