watchOS 6.3

watchOS

Version

6.3

Build ID

17U208

File Size

447.42 MB

Release Date

2020-12-14T18:08:47Z

Update Type

Normal release

Delta update - requires 6.1.2 installed first.

Download OTA

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

About This Update

watchOS 6.3 (build 17U208) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2020-12-14T18:08:47Z. The update package is 447.42 MB. This is a delta (partial) update that requires 6.1.2 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 edef379ed535ea44b9aa152f4d9b6ad5944aa0e0.zip.

Direct URL

http://updates-http.cdn-apple.com/2020FallFCS/patches/001-86478/9CB83BF7-9792-41FB-AC9A-F85B3EAC5C09/com_apple_MobileAsset_SoftwareUpdate/edef379ed535ea44b9aa152f4d9b6ad5944aa0e0.zip