Garmin Forerunner 101 mpn2520,

The Forerunner offers athletes and recreational walkers/runners an entry-level personal training device with GPS sensors that provides precise speed, distance and pace data. They are a compact, waterproof, lightweight, accurate training assistant with performance tracking, auto-lap, auto-pause and more. Forerunner 101 runs on 2 AAA batteries and has larger unit dimensions. Forerunner 201 has PC interface capabilities and runs on rechargeable lithium batteries. Forerunner 301 adds heartrate monitor and Garmin Training Center software to the features of the 201.

Features of Garmin Forerunner 101:

• 101: 3.3" W x 1.7" H x 0.9" D; Weight: 2.3oz
• 201: 3.3" W x 1.7" H x 0.6" D; Weight: 2.75oz
• WATERPROOF: Submersible 1 meter @ 30 min.
• Virtual Partner allows you to train against a time or pace you select
• Calculates calories burned based on body weight, distance traveled & slope changes
• Auto records lap histories by day or week, stores approximately 2 yrs of data
• Navigation capabilities allow to mark locations, find locations and navigate back to starting point. Up to 100 waypoints