watchOS 4.1

watchOS

Version

4.1

Build ID

15R5835d

File Size

118.11 MB

Release Date

2017-10-09T17:05:10Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

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

About This Update

watchOS 4.1 (build 15R5835d) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2017-10-09T17:05:10Z. The update package is 118.11 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 4198225250b663c768cae2f3f0aef7c14fbea17d.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-37685-20171009-C754F82C-AAC1-11E7-ACCB-AACE64D90D56/com_apple_MobileAsset_SoftwareUpdate/4198225250b663c768cae2f3f0aef7c14fbea17d.zip