Samsung watch 5 keeps un sync from phone

Experiencing multiple instances of having to Number sync your Watch 5 to your phone within 2 days might indicate a system issue. It's worth checking for any recent software updates for both your watch and phone. If the problem persists, consider contacting customer support for assistance. However, it's less likely that this indicates a watch failure, as similar issues occurred with your Watch 3 and Watch 4. Exploring software-related solutions and reaching out to support should help address the current syncing challenges.

Numbersync is a terrible program.   Works for Apple devices - does not work for Android devices.

When I switched a Verizon, there are software program is called number share. Not only is it easier to sync, but they stay synced.   I sometimes have my watch and my tablet turned off for days at a time. Turn them on,  they reconnect immediately.   

BTW, if your phone and watch are both unlocked devices, from Samsung, not an AT&T model, You can also opt for Samsung's call and text on other devices rather than using number sync

This won't work if your phone came in an AT&T box 🫤

I am on my 12th go around with number sync.  This time, i refuse to nuke my watch4 as part of their 'support services'.

Am currently on call with "advanced support", waiting as they talk (text?) With back office.  Not sure this call is going anywhere, but just am THIS close to taking my 9 .Ines to TMobile.

Samsung call and text... would that work on a rooted phone? Oh yeah,, same watch, happens regardless if using a SMN975U or SMN975F/DS, both being Note10+. Numbersync still sh*** the bed, and always told by AT&T that *I* turned off numbersync.