watchOS 4.1

watchOS

Version

4.1

Build ID

15R5823c

File Size

542.22 MB

Release Date

2017-09-27T16:58:57Z

Update Type

Normal release

Delta update - requires 3.2.3 installed first.

Download OTA

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

About This Update

watchOS 4.1 (build 15R5823c) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2017-09-27T16:58:57Z. The update package is 542.22 MB. This is a delta (partial) update that requires 3.2.3 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 d722897bc9fe020faf43cc3420fd5a546a9f00c1.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-29607-20170927-4ABC5882-9FBD-11E7-A2F7-A7506B179ABE/com_apple_MobileAsset_SoftwareUpdate/d722897bc9fe020faf43cc3420fd5a546a9f00c1.zip