watchOS 5.3

watchOS

Version

5.3

Build ID

16U569

File Size

874.2 MB

Release Date

2019-07-22T19:17:38Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (38mm) →

About This Update

watchOS 5.3 (build 16U569) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-07-22T19:17:38Z. The update package is 874.2 MB. This is a delta (partial) update that requires 4.0 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 6506354fdb1f72e84948119d03df36bbe2e83ade.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-51580/DF79ED3C-A75D-11E9-8841-D9E0F573D2E4/com_apple_MobileAsset_SoftwareUpdate/6506354fdb1f72e84948119d03df36bbe2e83ade.zip