watchOS 6.0 (build 17R5546f) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-07-30T17:10:20Z. The update package is 685.46 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: 1549ef3b0d6c6e583b92f32441f5164b58522fc0.zip.