If charging slow perlas the problem is you were cable or your adaptor itself.

There is a lot of was to secure your phone not only face recognition.

From where you heard the break of voice from your phone or from your watch i also have the same has you i have ultra and watch4. If it s your watch I believe it the connection between your bluetooth. Just try to reset your watch and try it again.

Tey to check your sim maybe it is not properly installed if still the safe try to reset if still the same reset if. Then the last option is go to service centre

Do first update your software and if still the same turn off the phone or reset it Hope it will sove your problem