watchOS 5.3.9

watchOS

Version

5.3.9

Build ID

16U693

File Size

52.38 MB

Release Date

2020-11-05T18:19:46Z

Update Type

Normal release

Delta update - requires 5.3.5 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (40mm) →

About This Update

watchOS 5.3.9 (build 16U693) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2020-11-05T18:19:46Z. The update package is 52.38 MB. This is a delta (partial) update that requires 5.3.5 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 278ca70c36e8ac136568233db79eaa6869e07584.zip.

Direct URL

http://updates-http.cdn-apple.com/2020FallFCS/patches/001-73032/5107C85B-9F9B-4829-A658-86D0780303ED/com_apple_MobileAsset_SoftwareUpdate/278ca70c36e8ac136568233db79eaa6869e07584.zip