watchOS 5.3

watchOS

Version

5.3

Build ID

16U5569a

File Size

133.5 MB

Release Date

2019-07-16T17:14:15Z

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 (38mm) →

About This Update

watchOS 5.3 (build 16U5569a) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2019-07-16T17:14:15Z. The update package is 133.5 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 564b894897788e90e2c931c8a9715cd91cb13881.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerSeed/patches/041-84336/D21680A8-A4B8-11E9-BCD2-D5814F8BE28D/com_apple_MobileAsset_SoftwareUpdate/564b894897788e90e2c931c8a9715cd91cb13881.zip