watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U113

File Size

136.12 MB

Release Date

2019-05-13T17:17:57Z

Update Type

Normal release

Delta update - requires 5.2 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 136.12 MB. This is a delta (partial) update that requires 5.2 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 948a5a1e54661ee198cf4c2b56a2857f3e91b419.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringFCS/patches/041-51451/7F27467C-704A-11E9-B788-AF4283443981/com_apple_MobileAsset_SoftwareUpdate/948a5a1e54661ee198cf4c2b56a2857f3e91b419.zip