watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T5555c

File Size

66.91 MB

Release Date

2018-05-01T17:06:28Z

Update Type

Normal release

Delta update - requires 4.3.1 installed first.

Download OTA

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About This Update

watchOS 4.3.1 (build 15T5555c) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2018-05-01T17:06:28Z. The update package is 66.91 MB. This is a delta (partial) update that requires 4.3.1 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 5686f9582d31dac446755c86e8bdaa1c26344907.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchosseed/091-81196-20180430-37D97BB0-495D-11E8-BE5B-0319D91E7F63/com_apple_MobileAsset_SoftwareUpdate/5686f9582d31dac446755c86e8bdaa1c26344907.zip