watchOS 6.3

watchOS

Version

6.3

Build ID

17U208

File Size

170.18 MB

Release Date

2020-12-14T18:08:52Z

Update Type

Normal release

Delta update - requires 6.2.1 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 2020-12-14T18:08:52Z. The update package is 170.18 MB. This is a delta (partial) update that requires 6.2.1 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 a7b8adf1a6b6633d607e7b549be57a24a6c6534f.zip.

Direct URL

http://updates-http.cdn-apple.com/2020FallFCS/patches/001-86529/15E80CE9-1151-43ED-9915-8D7781A9E980/com_apple_MobileAsset_SoftwareUpdate/a7b8adf1a6b6633d607e7b549be57a24a6c6534f.zip