watchOS 5.3

watchOS

Version

5.3

Build ID

16U569

File Size

883.55 MB

Release Date

2019-07-22T19:16:17Z

Update Type

Normal release

Delta update - requires 4.2.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm, LTE) →

About This Update

watchOS 5.3 (build 16U569) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2019-07-22T19:16:17Z. The update package is 883.55 MB. This is a delta (partial) update that requires 4.2.3 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 f34a16da6bbcabc94153d5cf10e6464157b0a7a1.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-51931/8EAFB4CA-A75F-11E9-9FD7-F443C7462760/com_apple_MobileAsset_SoftwareUpdate/f34a16da6bbcabc94153d5cf10e6464157b0a7a1.zip