watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U5079d

File Size

475.23 MB

Release Date

2019-03-28T17:11:28Z

Update Type

Normal release

Delta update - requires 5.1 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 16U5079d) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2019-03-28T17:11:28Z. The update package is 475.23 MB. This is a delta (partial) update that requires 5.1 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 b8d7fb8047dd84f948a63f4d9fac452a57961c69.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-46710/4C48B3FA-4C26-11E9-AD1B-4662777B68CB/com_apple_MobileAsset_SoftwareUpdate/b8d7fb8047dd84f948a63f4d9fac452a57961c69.zip