... watch heart rate 1). 2.4Ghz heart rate monitor 2).compass,speed, distance, pace, calories 3).waterproof (DG-6H) gps watch heart rate Product Features1. High-Sensitivity, Watch ... A code1.023 MHz chip rateChannels20 channel all-in-view trackingAntenna TypeBuilt-in patch antennaPosition10 ... meet your requirements. 5. Besides heart rate watch monitor, we also have GPS watch, stopwatch, altimeter, compass, ...