Garmin Fenix7s constantly fails bluetooth connectivity

I bought a garmin fenix7s few months ago. Before, I had a forunner 935, great one!

My fenix7s constantly has bluetooth connection problems. My phone can´t find it, even after following all the recommendations (disconnecting and connecting back phone, watch, bluetooth, forgeting device...). Now I can´t even pair it back as can´t be found by my phone (I have an apple). Is quite annoying that this keeps  happening, it wasn´t a cheap watch.

Is there anyone else having similar issues?