watchOS 5.2 (build 16T225) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-03-27T22:04:29Z. The update package is 457.2 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: 0e3f12a7cbb2a4949ef8dd6d7b0c6e571228767e.zip.