watchOS 5.3

watchOS

Version

5.3

Build ID

16U5558b

File Size

164.61 MB

Release Date

2019-06-24T17:25:43Z

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 (44mm, LTE) →

About This Update

watchOS 5.3 (build 16U5558b) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm, LTE), released on 2019-06-24T17:25:43Z. The update package is 164.61 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 000d02f2ae2e97153d7302072839c70e35d6c9d4.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-73771/6D7E53CC-939D-11E9-A7E1-D88F2A446F1D/com_apple_MobileAsset_SoftwareUpdate/000d02f2ae2e97153d7302072839c70e35d6c9d4.zip