Garmin Edge is a GPS specifically designed for cycling activities. Currently, there are five different varieties available. The price ranges from $249.99 for Edge 205 to $499.99 for Edge 705. The Edge series features a high-sensitivity GPS receiver that tracks position accurately and reliably even under the cover of trees or through canyons. Two models (Edge 605 and 705) have color screens while others use a black and white screen. The current product lines includes the Edge 205, Edge 305, Edge 500, Edge 605 and Edge 705.https://buy.garmin.com/shop/shop.do?cID=160

All Garmin Edge GPS devices include a bike mount, AC charger and USB cable. Also included is the Garmin Connect http://connect.garmin.com online community for planning, analyzing and storing workout data and the Garmin Training Center softwarehttp://www.garmin.com/garmin/cms/us/intosports/training_center (not available in Edge 500). The difference between the Garmin Connect and Garmin Training Center software is that the later only runs locally on the computer (Mac OS X and Microsoft Windows).

Only Edge 605 and Edge 705 models have a color screen. The entry level Edge 205 has the ability to track speed, distance, calories burned, average and maximum speeds. A Heart rate monitor and Barometric altimeter are available in Edge 305, Edge 500 and Edge 705. The Edge 605 and 705 have full mapping capabilities that include turn-by-turn directions.

Garmin Edge 705: A staggeringly complete information source - the ultimate bike computer, with GPS navigation too. - BikeRadar.comhttp://www.bikeradar.com/gear/category/accessories/gadgets/gps-devices/product/edge-705-31875

Garmin Edge 705: Those already acquainted with previous Garmin Edge units will find the Edge 705 familiar and an easy upgrade. The unit feels very solid in the hand and is easily operated one-handed. The button controls are intuitively placed on the unit, and the screen is bright and crisp. - GPSMagazine.comhttp://www.gpsmagazine.com/2007/09/garmin_edge_705_handson_previe.php?page=2

Garmin Edge 305: I think that Garmin really thought about the Edge. This is an amazing product that just about ticks all the boxes for me. There are some small drawbacks the main ones for me were the limited number of waypoints and having to delete each one individually." [1]