watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U113

File Size

994.16 MB

Release Date

2019-05-13T17:16:07Z

Update Type

Normal release

Delta update - requires 3.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (38mm) →

About This Update

watchOS 5.2.1 (build 16U113) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2019-05-13T17:16:07Z. The update package is 994.16 MB. This is a delta (partial) update that requires 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 895d2ba2e3e255c4fffdeb4986277dab5a3c7991.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringFCS/patches/041-07071/52F8300E-7048-11E9-A976-140383443981/com_apple_MobileAsset_SoftwareUpdate/895d2ba2e3e255c4fffdeb4986277dab5a3c7991.zip