watchOS 6.0 (build 17R5546f) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-07-30T17:10:39Z. The update package is 362.27 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: 9e1da5c82bec34d51241c5c38a8c01149b476f91.zip.