watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U113

File Size

453.34 MB

Release Date

2019-05-13T17:17:57Z

Update Type

Normal release

Delta update - requires 5.1.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (44mm) →

About This Update

watchOS 5.2.1 (build 16U113) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-05-13T17:17:57Z. The update package is 453.34 MB. This is a delta (partial) update that requires 5.1.3 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 233b30d38075a4c74bd380760fbfe02b2b48db78.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringFCS/patches/041-30463/CD7F313C-7049-11E9-9A66-642283443981/com_apple_MobileAsset_SoftwareUpdate/233b30d38075a4c74bd380760fbfe02b2b48db78.zip