watchOS 5.2 (build 16T5212e) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-03-04T18:11:15Z. The update package is 456.97 MB. This is a delta (partial) update that requires 5.1.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 77ea796aa98a4df9d9b29a74b22f41d3f1423401.zip.