watchOS 5.3.7

watchOS

Version

5.3.7

Build ID

16U674

File Size

54.44 MB

Release Date

2020-05-18T17:31:57Z

Update Type

Normal release

Delta update - requires 5.3.1 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 2020-05-18T17:31:57Z. The update package is 54.44 MB. This is a delta (partial) update that requires 5.3.1 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 d87fb7c99ede22c1740527e08b0bb02c6492df00.zip.

Direct URL

http://updates-http.cdn-apple.com/2020SpringFCS/patches/061-97694/F667C78C-13D1-4418-95F8-9A79052DC3D7/com_apple_MobileAsset_SoftwareUpdate/d87fb7c99ede22c1740527e08b0bb02c6492df00.zip