watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U5101c

File Size

447.76 MB

Release Date

2019-04-22T17:12:56Z

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 1 (42mm) →

About This Update

watchOS 5.2.1 (build 16U5101c) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-04-22T17:12:56Z. The update package is 447.76 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 1dcd88b8ce13bdcebd5587aade8f55b192812b37.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-56171/05008CD8-6243-11E9-AB7B-91FA56350BEA/com_apple_MobileAsset_SoftwareUpdate/1dcd88b8ce13bdcebd5587aade8f55b192812b37.zip