watchOS 4.1

watchOS

Version

4.1

Build ID

15R5835d

File Size

551.86 MB

Release Date

2017-10-09T17:05:02Z

Update Type

Normal release

Delta update - requires 3.2.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (38mm) →

About This Update

watchOS 4.1 (build 15R5835d) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2017-10-09T17:05:02Z. The update package is 551.86 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 1e7e095c18a4e9c55b19e85e08c7a480861f8d73.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-37613-20171009-360E2420-AAC0-11E7-93E1-11BC64D90D56/com_apple_MobileAsset_SoftwareUpdate/1e7e095c18a4e9c55b19e85e08c7a480861f8d73.zip