ATHLETE TESTED RELIABILITY HRM accuracy 1 bpm. V6 chest heart rate monitor has been tested by professional marathon runners, mountain enthusiasts and mountain cyclists. Shows that V6 chest strap helps them to obtain accurate heart rate, thereby helping them to achieve the best exercise state. heart rate monitors are absolutely reliable. CAPTURE REAL TIME DATA Stop guessing what your training intensity should be. V6 heart rate monitor chest strap accurately tracks and captures real-time heart rate and calories burn and pairs to your favorite fitness apps. You can wear hr monitor when rowing, cycling, climbing, yoga, running, training indoors or outdoors. BLUETOOTH 5.0 & ANT+ V6 heart rate sensor built-in Bluetooh & ANT+ technology, it can be connected to your smartphone, tablet, sports watch, bike computer, treadmill and other fitness equipment. It works with popular apps like Polar Beat, Wahoo Fitness, DDP Yoga, Elite HRV, Heart Graph, Map My Run, Runkeeper, Zwift, Str