To be honest, the CMF Watch is at the moment nearly useless in combination with the cmf app.
I tried the open source App Gadgetbridge since a few day and i like it much more.
It´s still not perfect, but it isn´t allowed for gadgetbridge to use every function from the watch, but the connection is better, the notifications are better and i even can show the data from breezy weather.
Also the music control stops working since weeks, with gadgetbridge it´s working again.
It´s a nice move to integrate it to the Nothing X App, but i doubt that it´ll make the watch better.
I hope they´ll work on the functions too