watchOS 5.3.10

watchOS

Version

5.3.10

Build ID

16U711

File Size

1.27 GB

Release Date

2026-03-24T18:33:18Z

Update Type

Normal release

Download OTA

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About This Update

watchOS 5.3.10 (build 16U711) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2026-03-24T18:33:18Z. The update package is 1.27 GB. This is a full OTA update that can be applied from any compatible base version. This update is currently signed by Apple, so it can be applied directly from Settings › General › Software Update.

The OTA payload file is a3c5e56daf6ffa039e42b8b8f2c8b4d53a4d1ff3.zip.

Direct URL

https://updates.cdn-apple.com/2025FallFCS/patches/047-72923/F26B5E2F-6D61-4557-A677-FBC82D3650F2/com_apple_MobileAsset_SoftwareUpdate/a3c5e56daf6ffa039e42b8b8f2c8b4d53a4d1ff3.zip