Always lossing Bluetooth connection to the phone

Hello.

After abandoned the forerunner 955 Solar because the constant faulty Barometer and 2 replacement watches, I decided to give a last chance to Garmin and I purchased a Fênix 8 47mm Solar.

First day... First disappointment... The watch is always losing Bluetooth connection to the phone.

I have made the same procedures that i used to do on the forerunner 955, but without any success.

After a while the watch looses the connection.

Any trick to resolve this?

Regards, 

Hugo Paixão