watchOS 5.3

watchOS

Version

5.3

Build ID

16U569

File Size

877.11 MB

Release Date

2019-07-22T19:16:20Z

Update Type

Normal release

Delta update - requires 4.3 installed first.

Download OTA

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

About This Update

watchOS 5.3 (build 16U569) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2019-07-22T19:16:20Z. The update package is 877.11 MB. This is a delta (partial) update that requires 4.3 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 a78bb3b4cc905a0050559bfaf7403cf934b2f129.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-51665/6E7BC744-A75E-11E9-A5BE-E29DF7609FA9/com_apple_MobileAsset_SoftwareUpdate/a78bb3b4cc905a0050559bfaf7403cf934b2f129.zip