watchOS 5.2.1

watchOS

Version

5.2.1

Build ID

16U5101c

File Size

106.38 MB

Release Date

2019-04-22T17:13:48Z

Update Type

Normal release

Delta update - requires 5.2.1 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 16U5101c) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-04-22T17:13:48Z. The update package is 106.38 MB. This is a delta (partial) update that requires 5.2.1 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 096b7c7f62f7d1497d80b28e620639efd5f49486.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-56340/3DF8A422-6242-11E9-A0DC-80D756350BEA/com_apple_MobileAsset_SoftwareUpdate/096b7c7f62f7d1497d80b28e620639efd5f49486.zip