Review on Garmin 010-01769-09 Vívoactive 3 by Ai Fitira ᠌

I chose between Polar V800 and Garmin Vivoactive 3 for a long time. The discount turned out to be the decisive factor. I took it with a Garmin HRM Premium heart rate monitor (it is important to control the pulse). I did not immediately notice that the connection with the monitor was being lost, since I did not turn off the wrist heart rate monitor. I put it on exactly according to the instructions (it is very clear and simple), but the watch loses its connection. I took it to the store, the store sent it to the service, and after 19 days they gave me a new monitor. I try - the result is the same - the clock loses contact with the monitor. I call (03/22/19, Friday) to the store, they are surprised and say that it seems that the problem was not with the monitor, but with the clock, but now they can’t say anything, they will call back on 03/25/19 on Monday. How they diagnosed the monitor - I do not understand :( At the moment, I am disappointed in the brand itself and the service, if I could replay it, I would choose Polar or Suunto.