watchOS 5.2 (build 16T5222a) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-03-11T17:12:04Z. The update package is 81.98 MB. This is a delta (partial) update that requires 5.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0a5794db48c5d0de8ecca716660de09b8988fca9.zip.