watchOS 5.3.5 (build 16U652) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2020-02-18T18:06:55Z. The update package is 51.83 MB. This is a delta (partial) update that requires 5.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 348a0f67bf7fc8ae1f7abf4909c4e64a2b98a6c7.zip.