watchOS 5.3.7

watchOS

Version

5.3.7

Build ID

16U674

File Size

49.37 MB

Release Date

2020-05-18T17:31:58Z

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) →

About This Update

watchOS 5.3.7 (build 16U674) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2020-05-18T17:31:58Z. The update package is 49.37 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 77cffd62ce8f375209dc5d6d2ab3d598a7bb1c79.zip.

Direct URL

http://updates-http.cdn-apple.com/2020SpringFCS/patches/061-97956/972E142B-4737-47E8-B826-1F0963364A6C/com_apple_MobileAsset_SoftwareUpdate/77cffd62ce8f375209dc5d6d2ab3d598a7bb1c79.zip