watchOS 5.3.1

watchOS

Version

5.3.1

Build ID

16U600

File Size

484.88 MB

Release Date

2019-08-26T17:14:13Z

Update Type

Normal release

Delta update - requires 5.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (42mm) →

About This Update

watchOS 5.3.1 (build 16U600) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2019-08-26T17:14:13Z. The update package is 484.88 MB. This is a delta (partial) update that requires 5.0 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 69da9983eeecb0c3e88166c60e0cc972aff98f5a.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-91991/B1CC924C-C501-11E9-8C7D-FFE91D38886F/com_apple_MobileAsset_SoftwareUpdate/69da9983eeecb0c3e88166c60e0cc972aff98f5a.zip