Built-in SiRF Star III high performance GPS chipset Excellent sensitivity for fixing the position even at a weak signal status With built-in rechargeable and high capacity lithium-ion battery Large LCD for easy read WAAS/ENGOS supported Water-resistant and rigid design to avoid damaging with carelessness Recording all history of self- training by defined day GH-625M can be used as a GPS receiver by easy setup The firmware of the GH-625 series can be upgraded through PC Navigation: tracking your route as crumb method; mark and save your tracking points by special algorithm; find the specified location With heart rate monitor sensor (for 625M model) Support Google earth file format Embedded high capacity flash memory to store the plenty of data Calories calculation Track back: giving you a reference route according to your activity before to get better performance of training Application software: Supporting the operating system such as Microsoft Windows 98, 2000, and XP Smart training database management and easy to use Easy to use for upgrading the device firmware Using SPA PC software Accessories: Quick guide USB cable (for charging and data download) PC software CD 5V AC/DC charger (optional) System specification: Number of way points: 100 Tracking point: 60,000 Laps: 6,000 Display size: 24.9 x 39.88mm Display type: black and white LCD Resolution: 80 x 120 pixels Unit weight: 72.87g (TBD) Water-resistant standard: IPX7 Unit size (Φ): 76.5 x 61.5 x 17.5mm (TBD) Backlight display: single level Operating temperature: -10 to 60 degree Celsius Humidity: 5 to 95% non-condensing Voltage: 3.7V for rechargeable battery, 5V for charging input Charging connector: 5V DC Battery: Rechargeable 750mAh Li-ion battery (for B series) Rechargeable 625mAh Li-Pol battery (for M series) Power consumption: GPS, HBM, and backlight off 25mA GPS on (no fixed), HBM and backlight off 60mA