watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U113

File Size

852.63 MB

Release Date

2019-05-13T17:17:28Z

Update Type

Normal release

Delta update - requires 4.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 5.2.1 (build 16U113) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2019-05-13T17:17:28Z. The update package is 852.63 MB. This is a delta (partial) update that requires 4.1 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 a174b548da56916f206c981caa0db9640353b418.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringFCS/patches/041-07241/4F063CA6-7049-11E9-A30B-211583443981/com_apple_MobileAsset_SoftwareUpdate/a174b548da56916f206c981caa0db9640353b418.zip