watchOS 5.3

watchOS

Version

5.3

Build ID

16U5526f

File Size

85.3 MB

Release Date

2019-05-15T17:12:48Z

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 16U5526f) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-05-15T17:12:48Z. The update package is 85.3 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 60c97b327d00fe38711243f4f870001c0e7d809c.zip.

Direct URL

http://updates-http.cdn-apple.com/2019SpringSeed/patches/041-62951/D5B8D6C0-758D-11E9-AADB-A067A2A46DA2/com_apple_MobileAsset_SoftwareUpdate/60c97b327d00fe38711243f4f870001c0e7d809c.zip