watchOS 5.3

watchOS

Version

5.3

Build ID

16U569

File Size

141.11 MB

Release Date

2019-07-22T19:15:32Z

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 3 (38mm, LTE) →

About This Update

watchOS 5.3 (build 16U569) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2019-07-22T19:15:32Z. The update package is 141.11 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 220cef59ab26f66b6254118332197f27e0588249.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-63556/C4FC33C8-A75F-11E9-98A5-8CFB81AFDFC3/com_apple_MobileAsset_SoftwareUpdate/220cef59ab26f66b6254118332197f27e0588249.zip