watchOS 5.3.9

watchOS

Version

5.3.9

Build ID

16U693

File Size

485.36 MB

Release Date

2021-01-26T18:26:38Z

Update Type

Normal release

Delta update - requires 5.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 5.3.9 (build 16U693) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2021-01-26T18:26:38Z. The update package is 485.36 MB. This is a delta (partial) update that requires 5.1 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 08ecaec815eeac5130bfafb930a740c495606cca.zip.

Direct URL

http://updates-http.cdn-apple.com/2020FallFCS/patches/001-53974/D23D6534-1C07-4126-A546-EF64182C9078/com_apple_MobileAsset_SoftwareUpdate/08ecaec815eeac5130bfafb930a740c495606cca.zip