watchOS 6.1 (build 17S5059e) is an official Apple over-the-air update for the Apple Watch Series 5 (44mm, LTE), released on 2019-10-02T17:11:32Z. The update package is 144.96 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: 60e9ecc06699604327c478a6d65f9bccbfaa9346.zip.