Because the V800 is no longer in production, finding a new unit is difficult. You can typically find it through secondary markets and specialized retailers: Validation study of Polar V800 accelerometer - PMC
provides nearly identical R-R interval data to a medical-grade ECG (Intraclass Correlation Coefficient = 0.995–1.000). buy polar v800
to be one of the most accurate sports watches for distance recording, showing no statistically significant difference from reference distances in diverse environments. Because the V800 is no longer in production,
A study in PMC analyzed its validity for quantifying daily physical activity against the ActiGraph accelerometer. Where to Buy buy polar v800