watchOS 6.3

watchOS

Version

6.3

Build ID

17U208

File Size

459.93 MB

Release Date

2020-12-14T18:09:03Z

Update Type

Normal release

Delta update - requires 6.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 6.3 (build 17U208) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2020-12-14T18:09:03Z. The update package is 459.93 MB. This is a delta (partial) update that requires 6.1 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 cf21783ff796026534a174eda99341ae8ee13666.zip.

Direct URL

http://updates-http.cdn-apple.com/2020FallFCS/patches/001-86479/8EE947FC-DE79-4698-8863-085D33C034D7/com_apple_MobileAsset_SoftwareUpdate/cf21783ff796026534a174eda99341ae8ee13666.zip