watchOS 9.0

watchOS

Version

9.0

Build ID

13S661

File Size

523.1 MB

Release Date

2015-12-08T18:23:09Z

Update Type

Normal release

Delta update - requires 8.2.1 installed first.

Download OTA

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

About This Update

watchOS 9.0 (build 13S661) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2015-12-08T18:23:09Z. The update package is 523.1 MB. This is a delta (partial) update that requires 8.2.1 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 3977e84b9c0cf3d212fab658f99d154022544881.zip.

Direct URL

http://appldnld.apple.com/watch/os2.1/031-30774-20151208-CA60A4BE-8EEC-11E5-A14A-E5C48B8BECEB/com_apple_MobileAsset_SoftwareUpdate/3977e84b9c0cf3d212fab658f99d154022544881.zip