Polar Grit X review: The Grit is great - Android Authority
Somewhat large and potentially uncomfortable Not as accurate as some of the competition A little pricey Bottom Line The Polar Grit X is a comprehensive and mostly accurate fitness tracker, but may not appeal to more casual users. Grit X by Polar The Polar Grit X is a comprehensive and mostly accurate fitness tracker, but may not appeal to more casual users. The Polar Grit X is a fitness tracker aimed primarily at runners and athletes, with a heavy emphasis on long distance. It is also a very strong option for tracking a wide variety of other activities, and a compelling health tracker for ...
Source: androidauthority.com