watchOS 5.3

watchOS

Version

5.3

Build ID

16U6569

File Size

106.97 MB

Release Date

2019-07-22T19:20:04Z

Update Type

Normal release

Delta update - requires 5.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (44mm) →

About This Update

watchOS 5.3 (build 16U6569) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-07-22T19:20:04Z. The update package is 106.97 MB. This is a delta (partial) update that requires 5.3 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 efeb34e64c537152e2bae9285f383b571e6392c3.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-73335/E400FCE0-A75F-11E9-92E0-A6C233D0B139/com_apple_MobileAsset_SoftwareUpdate/efeb34e64c537152e2bae9285f383b571e6392c3.zip