Download watchOS 5.3.9 (16U693) for Apple Watch Series 3 (42mm) / IPSW Downloads

✓ This firmware is signed.

Download (527 MB)

Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

This update includes improvements and bug fixes.

For information on the security content of Apple software updates, please visit this website: