watchOS 5.2 (build 16T5212e) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-03-04T18:11:17Z. The update package is 436.67 MB. This is a delta (partial) update that requires 5.1.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c23bcf6b7c935a9c155a0d2b081df324551e02af.zip.