Galaxy watch

[Gremlin14]

Since updating today, the watch isn't showing any messages or calls. It's also been draining my phone battery.

The watch also shows that the phone is out of range, even when they are right next to each other.

[BandOfBrothers]

If this was my watch I would first try a soft reboot by turning it off and on. 

If no improvement then....

Unpair,  delete pair and reset it back up. 

Then back up and reset the watch if necessary as a last resort. 

If still no improvement then a Samsung Service Centre or Samsung Experience Store will be able to help you further with this situation.