Feature

1. With Heart Rate Monitor Sensor
2 .Built-in SiRF Star III high performance GPS chipset. Excellent sensitivity for fixing the position even at a weak signal status.
3. With built-in rechargeable and high capacity lithium-ion battery.
4. Large LCD for easy read.
5. WAAS/ ENGOS support.
6. Waterproof and rigid design to avoid damaging with carelessness.
7. Recording all history of self- training by defined day.
8. GH-615 can be used as a GPS receiver by easy setup.
9. The firmware of the GH- series can be upgraded through PC.
10. Navigation: Tracking your route as crumb method; mark and save your tracking points by special algorithm; find the specified location.  
11. Support Google Earth file format
12. Embedded high capacity flash memory to store the plenty of data.
13. Calories Calculation
14. Track Back: Giving you a reference route according to your activity before to get better