watchOS 5.3

watchOS

Version

5.3

Build ID

16U569

File Size

511.7 MB

Release Date

2019-07-22T19:20:23Z

Update Type

Normal release

Delta update - requires 5.0 installed first.

Download OTA

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

About This Update

watchOS 5.3 (build 16U569) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-07-22T19:20:23Z. The update package is 511.7 MB. This is a delta (partial) update that requires 5.0 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 9d4ba6cfc93cfb58ab8d8a4bf109c667b36f4a02.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-51803/FD1F06AA-A75E-11E9-8F40-A0D4BEFC42E4/com_apple_MobileAsset_SoftwareUpdate/9d4ba6cfc93cfb58ab8d8a4bf109c667b36f4a02.zip