watchOS 5.2 (build 16T5201c) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-02-19T18:16:12Z. The update package is 137.4 MB. This is a delta (partial) update that requires 5.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 46631026a31d9128e470ce5046cc2386cb957170.zip.