watchOS 5.3

watchOS

Version

5.3

Build ID

16U6569

File Size

107.49 MB

Release Date

2019-07-22T19:19:46Z

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 (40mm) →

About This Update

watchOS 5.3 (build 16U6569) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2019-07-22T19:19:46Z. The update package is 107.49 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 4e78507121e0ea310ac1726257603ddbc30e0942.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-68091/CFB86598-A75F-11E9-B3D3-833F54FDD66F/com_apple_MobileAsset_SoftwareUpdate/4e78507121e0ea310ac1726257603ddbc30e0942.zip