watchOS 4.1

watchOS

Version

4.1

Build ID

15R5823c

File Size

303.51 MB

Release Date

2017-09-27T16:58:48Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

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

About This Update

watchOS 4.1 (build 15R5823c) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2017-09-27T16:58:48Z. The update package is 303.51 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 891bfd3adc8d7bac9175a189d424d5ceca38b0e5.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-29707-20170927-61D4B59C-9FBC-11E7-9C68-5F4B6B179ABE/com_apple_MobileAsset_SoftwareUpdate/891bfd3adc8d7bac9175a189d424d5ceca38b0e5.zip