watchOS 5.3.8

watchOS

Version

5.3.8

Build ID

16U680

File Size

53.95 MB

Release Date

2020-07-15T17:28:37Z

Update Type

Normal release

Delta update - requires 5.3.4 installed first.

Download OTA

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

About This Update

watchOS 5.3.8 (build 16U680) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm, LTE), released on 2020-07-15T17:28:37Z. The update package is 53.95 MB. This is a delta (partial) update that requires 5.3.4 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 b3ba32265d7c65ab56a00849bde6926056f06336.zip.

Direct URL

http://updates-http.cdn-apple.com/2020SummerFCS/patches/001-10334/C9EE1CD3-0550-4E50-89F4-B9F2509D25F7/com_apple_MobileAsset_SoftwareUpdate/b3ba32265d7c65ab56a00849bde6926056f06336.zip