watchOS 5.3

watchOS

Version

5.3

Build ID

16U5526f

File Size

128.88 MB

Release Date

2019-05-15T17:11:31Z

Update Type

Normal release

Delta update - requires 5.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 5.3 (build 16U5526f) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2019-05-15T17:11:31Z. The update package is 128.88 MB. This is a delta (partial) update that requires 5.2 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 f7cb0cedeeb18c2c022219f41572da122c647f30.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-63117/0E587530-758E-11E9-90CA-BE604EF759A0/com_apple_MobileAsset_SoftwareUpdate/f7cb0cedeeb18c2c022219f41572da122c647f30.zip