Best of luck, mine has reset as frequently as twice within the same day throughout end of January & all of February... But for the last 4-6 weeks, it's been disconnecting (forcing a factory reset) on approx. a 2 week cycle...
I'm the one whose Samsung Feedback response stated Life360 was causing it. But I'm also in a situation where I cannot disable or remove Life360 for 2 weeks or more "hoping" the disconnect no longer happens. My family & I rely on it for location & travel tracking & other benefits.
In the meantime, if you *DO* experience another disconnect, please be sure to submit Feedback via Samsung Members app.
Open Samsung Members app (available on Google Play), click "Support" @ bottom right, then click "Send feedback" under "Quick Help" ~half way down.
Follow the prompts, attaching logs if prompted. For details, enter a brief summary of what happened & any useful details like "Watch Ultra disconnected from phone while charging, will not reconnect. Known issue, requires Factory Reset of watch, please see Samsung Community for further verification".
Good luck, I eagerly await your findings! š
