watchOS 5.3.3

watchOS

Version

5.3.3

Build ID

16U620

File Size

50.69 MB

Release Date

2019-10-29T17:09:28Z

Update Type

Normal release

Delta update - requires 5.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (38mm) →

About This Update

watchOS 5.3.3 (build 16U620) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2019-10-29T17:09:28Z. The update package is 50.69 MB. This is a delta (partial) update that requires 5.3 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 350669e21fa7766edf46dcbbadf5108fb942b077.zip.

Direct URL

http://updates-http.cdn-apple.com/2019FallFCS/patches/061-32206/F2EFAB6A-F0D0-11E9-B9A5-595481BF55A8/com_apple_MobileAsset_SoftwareUpdate/350669e21fa7766edf46dcbbadf5108fb942b077.zip