watchOS 5.3

watchOS

Version

5.3

Build ID

16U5558b

File Size

167.63 MB

Release Date

2019-06-24T17:25:37Z

Update Type

Normal release

Delta update - requires 5.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (40mm, LTE) →

About This Update

watchOS 5.3 (build 16U5558b) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm, LTE), released on 2019-06-24T17:25:37Z. The update package is 167.63 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 0bbbdbcccc7a9f5f2a861d474fda1b75513c3cd7.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-73714/7F482D76-939D-11E9-8615-72932A446F1D/com_apple_MobileAsset_SoftwareUpdate/0bbbdbcccc7a9f5f2a861d474fda1b75513c3cd7.zip