watchOS 4.1

watchOS

Version

4.1

Build ID

15R5823c

File Size

104.27 MB

Release Date

2017-09-27T17:00:01Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (38mm) →

About This Update

watchOS 4.1 (build 15R5823c) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2017-09-27T17:00:01Z. The update package is 104.27 MB. This is a delta (partial) update that requires 4.0 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 316d8412728600ae3428c73e8675a1a38b463645.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-29585-20170927-3E78F7E8-9FBC-11E7-922C-36446B179ABE/com_apple_MobileAsset_SoftwareUpdate/316d8412728600ae3428c73e8675a1a38b463645.zip