watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U113

File Size

999.69 MB

Release Date

2019-05-13T17:16:26Z

Update Type

Normal release

Delta update - requires 3.1.3 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 16U113) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-05-13T17:16:26Z. The update package is 999.69 MB. This is a delta (partial) update that requires 3.1.3 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 f971097ad26e88201f0b1fccaff514777dfd6a25.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringFCS/patches/041-07173/DB3E66E0-7048-11E9-A1DA-830D83443981/com_apple_MobileAsset_SoftwareUpdate/f971097ad26e88201f0b1fccaff514777dfd6a25.zip