watchOS 5.3

watchOS

Version

5.3

Build ID

16U5537b

File Size

149.28 MB

Release Date

2019-05-28T17:11:53Z

Update Type

Normal release

Delta update - requires 5.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 5.3 (build 16U5537b) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2019-05-28T17:11:53Z. The update package is 149.28 MB. This is a delta (partial) update that requires 5.2 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 9d91dfdadbb7b8daf71f218f0fdd754883117546.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-67431/A4B5528C-7D77-11E9-8358-9C18E8287161/com_apple_MobileAsset_SoftwareUpdate/9d91dfdadbb7b8daf71f218f0fdd754883117546.zip