watchOS 5.2 (build 16T225) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2019-03-27T22:03:48Z. The update package is 503.11 MB. This is a delta (partial) update that requires 5.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: aa373e1a5e451bd69f791679a6b8ec40a9a70ca8.zip.