The Forerunner 201 is the first all-in-one personal training device that uses GPS satellites to calculate speed, distance and pace. There's no calibration required, and Forerunner's extremely easy to use, so you'll be off and running in no time. You don't even have to think about starting and stopping the timer or punching the lap button to record stats. Forerunner will do it automatically. And when you need motivation, Forerunner's Virtual Partner feature lets you input pace, time and distance goals, and then shows if you're ahead or lagging. User-customized display includes training time, pace, distance, lap pace, lap time, lap distance, average and best pace, elevation and calories. Stores up to approximately 2 years of training histories. Review lap histories to-date, by day or by week. Download histories to your PC using free software from the Garmin Web site. Automatically pauses the training timer when you slow down below a specified resting pace; timer resumes when you start running again. Automatically triggers a lap when you reach a specified distance. Allows you to run anywhere and still get accurate performance data. Allows you to input training goals based on time, distance and pace. Forerunner displays a graphic "virtual partner" that will run with the set goal, so you can see at a glance if you are keeping up or falling behind. Alarm sounds if you are slower or faster than pace you've input. Alarm sounds when you reach the specified time or distance. What's in the Box: Forerunner 201 Expander strap AC charger Cradle and serial cable Owner's manual Quick start guide

General
Product Type	GPS receiver
Width	3.3 in
Depth	0.7 in
Height	1.7 in
Weight	2.8 oz
GPS System
Recommended Use	Running
Receiver	12 channel
Accuracy	Position - 15 m ¦ Velocity - 0.1 m/sec
Update Rate	1/second
Connectivity	Serial
GPS Functions / Services	Distance, elevation, speed, time/date
Antenna	Built-in
Features	Alarm, clock, timer, AutoLap, AutoPause, Virtual Partner
Compatible GPS Software	Garmin Training Center
Acquisition Times
Cold	45 sec
Warm	15 sec
Navigation
Waypoints	100
Built-in Display
Type	LCD
Resolution	100 x 64
Display Illumination	Yes
Color Support	Monochrome
Connections
Connector Type	Serial
Battery
Battery Enclosure Type	Internal
Technology	Lithium ion
Run Time (Up To)	15 hour(s)
Miscellaneous
Included Accessories	PC cable, wrist strap, charging cradle
Waterproof	Yes
Waterproof Standard	IPX7
Environmental Parameters
Min Operating Temperature	-4 °F
Max Operating Temperature	140 °F