watchOS 5.3

watchOS

Version

5.3

Build ID

16U5545c

File Size

1.3 GB

Release Date

2019-06-11T17:14:13Z

Update Type

Normal release

Download OTA

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

About This Update

watchOS 5.3 (build 16U5545c) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-06-11T17:14:13Z. The update package is 1.3 GB. This is a full OTA update that can be applied from any compatible base version. 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 a9dc7f54104661d6a4deda931b0b36c2d303c39e.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-72900/1AD4AB0C-88A9-11E9-95A7-6ACA4B7D6DB9/com_apple_MobileAsset_SoftwareUpdate/a9dc7f54104661d6a4deda931b0b36c2d303c39e.zip