watchOS 5.3

watchOS

Version

5.3

Build ID

16U6569

File Size

111.51 MB

Release Date

2019-07-22T19:20:02Z

Update Type

Normal release

Delta update - requires 5.2.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (44mm) →

About This Update

watchOS 5.3 (build 16U6569) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-07-22T19:20:02Z. The update package is 111.51 MB. This is a delta (partial) update that requires 5.2.1 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 0f203f070766467cf160c089cbaca1dd557618d5.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-76047/EAF4B596-A75F-11E9-B023-9BE925803F6E/com_apple_MobileAsset_SoftwareUpdate/0f203f070766467cf160c089cbaca1dd557618d5.zip