watchOS 5.3

watchOS

Version

5.3

Build ID

16U5545c

File Size

99.16 MB

Release Date

2019-06-11T17:14:17Z

Update Type

Normal release

Delta update - requires 5.3 installed first.

Download OTA

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

About This Update

watchOS 5.3 (build 16U5545c) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm, LTE), released on 2019-06-11T17:14:17Z. The update package is 99.16 MB. This is a delta (partial) update that requires 5.3 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 7402b4136441cd9e27fb28ef448c695d3d44aaf7.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-72807/21F34E4A-88A7-11E9-A3E5-B6954B7D6DB9/com_apple_MobileAsset_SoftwareUpdate/7402b4136441cd9e27fb28ef448c695d3d44aaf7.zip