watchOS 5.2 (build 16T225) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-03-27T22:04:42Z. The update package is 495.29 MB. This is a delta (partial) update that requires 5.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2ced5d800c2d773233ed3458e60abda591f2a09c.zip.