watchOS 5.3

watchOS

Version

5.3

Build ID

16U5526f

File Size

129.14 MB

Release Date

2019-05-15T17:11:32Z

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 1 (42mm) →

About This Update

watchOS 5.3 (build 16U5526f) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-05-15T17:11:32Z. The update package is 129.14 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 f6fce280ab2ef14f9fd091e47c7b5216b09a4d47.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-63015/F25AEA66-758D-11E9-A4B8-C087488A9C2E/com_apple_MobileAsset_SoftwareUpdate/f6fce280ab2ef14f9fd091e47c7b5216b09a4d47.zip