watchOS 5.3.1

watchOS

Version

5.3.1

Build ID

16U600

File Size

832.02 MB

Release Date

2019-08-26T17:13:54Z

Update Type

Normal release

Delta update - requires 4.2.2 installed first.

Download OTA

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

About This Update

watchOS 5.3.1 (build 16U600) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2019-08-26T17:13:54Z. The update package is 832.02 MB. This is a delta (partial) update that requires 4.2.2 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 f75a8293b1b794d882c14b54fffb11cf0773c0a2.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-91988/AFF73D14-C501-11E9-ABFC-98BCD73F5856/com_apple_MobileAsset_SoftwareUpdate/f75a8293b1b794d882c14b54fffb11cf0773c0a2.zip