watchOS 5.3

watchOS

Version

5.3

Build ID

16U569

File Size

473.02 MB

Release Date

2019-07-22T19:19:36Z

Update Type

Normal release

Delta update - requires 5.1.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (40mm) →

About This Update

watchOS 5.3 (build 16U569) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2019-07-22T19:19:36Z. The update package is 473.02 MB. This is a delta (partial) update that requires 5.1.1 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 cc55da9530955596622ad2b8d5fdf3cdc5468b4d.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-51895/5B5B6718-A75F-11E9-8584-F67ABB68DF83/com_apple_MobileAsset_SoftwareUpdate/cc55da9530955596622ad2b8d5fdf3cdc5468b4d.zip