watchOS 5.3.10

watchOS

Version

5.3.10

Build ID

16U711

File Size

63.85 MB

Release Date

2026-03-24T18:33:07Z

Update Type

Normal release

Delta update - requires 5.3.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

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 2026-03-24T18:33:07Z. The update package is 63.85 MB. This is a delta (partial) update that requires 5.3.1 to already be installed on the device - it cannot be applied from scratch. This update is currently signed by Apple, so it can be applied directly from Settings › General › Software Update.

The OTA payload file is 2d882d7f97a548d2ae163389554678d81593d8c3.zip.

Direct URL

https://updates.cdn-apple.com/2025FallFCS/patches/047-72954/263CC74A-006C-4AFF-8DD4-A1387F745231/com_apple_MobileAsset_SoftwareUpdate/2d882d7f97a548d2ae163389554678d81593d8c3.zip