![My GritX OHR vs V800 with H10 chest strap. Such difference!?! Anyone else getting extremely inaccurate reading with their GritX? : r/Polarfitness My GritX OHR vs V800 with H10 chest strap. Such difference!?! Anyone else getting extremely inaccurate reading with their GritX? : r/Polarfitness](https://i.redd.it/ylbz1ws5ffi51.jpg)
My GritX OHR vs V800 with H10 chest strap. Such difference!?! Anyone else getting extremely inaccurate reading with their GritX? : r/Polarfitness
![Polar Vantage M. Details and first impressions - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS... Polar Vantage M. Details and first impressions - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...](https://www.correrunamaraton.com/wp-content/uploads/2018/09/polar-vantage-m.jpg)
Polar Vantage M. Details and first impressions - Correr una Maratón - Review of Garmin, Polar, Suunto, COROS...
![Amazon.com : POLAR VANTAGE M –Advanced Running & Multisport Watch with GPS and Wrist-based Heart Rate (Lightweight Design & Latest Technology), Black, M-L : Sports & Outdoors Amazon.com : POLAR VANTAGE M –Advanced Running & Multisport Watch with GPS and Wrist-based Heart Rate (Lightweight Design & Latest Technology), Black, M-L : Sports & Outdoors](https://m.media-amazon.com/images/I/61ocKvGViLS._AC_UF350,350_QL80_.jpg)