watchOS 4.1

watchOS

Version

4.1

Build ID

15R5823c

File Size

542.18 MB

Release Date

2017-09-27T16:58:58Z

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 2017-09-27T16:58:58Z. The update package is 542.18 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 3f3b1ee9c0cd15a2a61f1137c73eaf3440415667.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-29645-20170927-86C3B1CC-9FBD-11E7-ABF4-30566B179ABE/com_apple_MobileAsset_SoftwareUpdate/3f3b1ee9c0cd15a2a61f1137c73eaf3440415667.zip