Magellan 505 GPS Cyclo Computer Complete USA road network and OSM crowd source trail data showing cycling POIs like bicycle shops Surprise Me suggests up to 3 different routes after entering distance or time criteria Bluetooth Smart connectivity for smartphones and sensors including over 130 ANT+ speed, cadence, heart rate and power accessories Compatible with Shimano Di2 electronic road bicycle shifting systems with Di2 Wireless Unit featuring D-Fly Shake-N-Share keeps everyone together by sharing a route with other Cyclo 315 or 505 series owners User Friendly/ No heavy layers/ Intuitive user interface/ Largest touch screen in cycling GPS computer category at 3" Preloaded with: Tele Atlas road network and Open Street Map bike network Connects your iPhone or Android phone to Cyclo allowing you to view who is calling and read an SMS message