This item combines GPS navigation， heart rate monitor， pedometer， altimeter， compass and many other functions in one sports watch. It is a wonderful product for sports lovers.

Features:
Daily automatic synchronization times from satellite.
3D Pedometer.
Bluetooth 4.0 HRM.
Compass.
Stopwatch(1/100s).
Countdown timer.
Daily alarms.
Navigation mode.
Sports mode.
LED display mode switch(black-->white).
DST.
Hour chime.
12/24 hour format.
Calendar.
Auto time zone.
Dual time.
Application.
Power save function.
Low battery and battery charging display.
Date display.
LED backlight.
50M waterproof.

Specifications:
Battery: CR2032， Rechargeable 320mAh Li-ion battery
Charging method: USB charging
Color: Black
Watch surface material: Mineral glass
Button material: ABS
Buckle material: Stainless steel
Strap material: PU
Dial size: 47.5 * 17.5mm (D * W)
Watch strap width: 21.5mm
Watch weight: 71g / 2.5oz
Package size: 14.3 * 10 * 8.3cm / 5.6 * 3.9 * 3.3in
Package weight: 266g / 9.4oz

Package List:
1 * Sports Watch
1 * Chest Strap
1 * USB Charger
1 * Disk