watchOS 5.3

watchOS

Version

5.3

Build ID

16U6569

File Size

111.58 MB

Release Date

2019-07-22T19:19:45Z

Update Type

Normal release

Delta update - requires 5.2.1 installed first.

Download OTA

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

About This Update

watchOS 5.3 (build 16U6569) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2019-07-22T19:19:45Z. The update package is 111.58 MB. This is a delta (partial) update that requires 5.2.1 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 7503888a95e99c5080335168cd51ebe50fa5b292.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-76043/E7A2520E-A75F-11E9-8ED1-83596AFB4285/com_apple_MobileAsset_SoftwareUpdate/7503888a95e99c5080335168cd51ebe50fa5b292.zip