watchOS 5.3.3

watchOS

Version

5.3.3

Build ID

16U620

File Size

64.99 MB

Release Date

2019-10-29T17:09:34Z

Update Type

Normal release

Delta update - requires 5.3.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 5.3.3 (build 16U620) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2019-10-29T17:09:34Z. The update package is 64.99 MB. This is a delta (partial) update that requires 5.3.1 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 9a000185070c0c67c3c8da3e53b675fbf31cda3a.zip.

Direct URL

http://updates-http.cdn-apple.com/2019FallFCS/patches/061-31984/CA089F96-F0CF-11E9-B902-5B3481BF55A8/com_apple_MobileAsset_SoftwareUpdate/9a000185070c0c67c3c8da3e53b675fbf31cda3a.zip