Review on 🏃 Polar Vantage M - Enhanced Running & Performance Monitoring by Corey Listner

I may have a defective device, but the display was very dark. There is no option to change this in the settings either. I suspect this is the main reason for the better battery life, but after using various Polar and Fitbit products I found this unacceptable. Very disappointed as I've been waiting for the Vantage for a while. I love polar food but I'll stick with this one until it gets better. Worn one day and returned.