watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U113

File Size

510.52 MB

Release Date

2019-05-13T17:18:05Z

Update Type

Normal release

Delta update - requires 5.0 installed first.

Download OTA

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

About This Update

watchOS 5.2.1 (build 16U113) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-05-13T17:18:05Z. The update package is 510.52 MB. This is a delta (partial) update that requires 5.0 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 a5a366a13e3b5d656e456d93a7704133352b36bc.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringFCS/patches/041-07238/4E8F0B72-7049-11E9-9D78-121583443981/com_apple_MobileAsset_SoftwareUpdate/a5a366a13e3b5d656e456d93a7704133352b36bc.zip