watchOS 5.3.8

watchOS

Version

5.3.8

Build ID

16U680

File Size

59.22 MB

Release Date

2020-07-15T17:28:28Z

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) →

About This Update

watchOS 5.3.8 (build 16U680) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2020-07-15T17:28:28Z. The update package is 59.22 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 d6ab7e4fb020301b9f7daed3141b0ec7e7372bea.zip.

Direct URL

http://updates-http.cdn-apple.com/2020SummerFCS/patches/001-10422/0611A333-4D50-4886-A84E-94DAEE85575A/com_apple_MobileAsset_SoftwareUpdate/d6ab7e4fb020301b9f7daed3141b0ec7e7372bea.zip