This compact wrist-top GPS utilizes a highly sensitive tracker AND heart rate monitor to advance your training to new heights.
Easy-to-use right out of the box, no pace-setting calibrations necessary; GPS satellites calculate speed, distance and pace information
SiRFstar® receiver provides rapid first fix and is sensitive enough to acquire signals in urban canyons and under dense foliage
Compact wristband monitor has an easy-to-read display
Wireless heart rate transmitting chest strap has a soft, comfortable strap; digitally transmits to the wrist unit
Navigation capabilities let you mark locations, find locations or navigate back to the starting point
Calculates calorie consumption based on user's weight, distance traveled and hills climbed
Records lap history by day and week, stores up to 200 workouts in its memory
Online training log, interactive mapping and performance analysis at www.MotionBased.com, available for FREE or upgrade to the pay subscription
Pace alarm sounds if you're running either faster or slower than your programmed pace
Time/distance alarm alerts when you've reached a desired time or distance
Display is backlit for easy viewing in low light
Water-resistant construction meets IPX7 standards (submersible 1-meter for 30 minutes)
Operates approximately 10 hours on its rechargeable lithium ion battery; A/C charger included
Includes: GPS unit, heart rate monitor, wristband, PC USB interface cable, charger, CD-ROM, manual and quick-start guide

If you're serious about training and keeping track of your results, then consider this gadgets. It's GPS enabled and uses satellites to continuously track your position. It also displays your speed, heart rate, and calories burned.