Garmin tracker, heart rate monitor and power adapter The Forerunner 305 includes a high sensitivity GPS receiver, new courses feature and robust wireless heart rate monitor for optimal performance. Lock On to Satellite Signals Forerunner 305 sports a unique design that wraps the GPS antenna around part of the wrist for a better view of the sky, and its high sensitivity GPS receiver provides improved tracking under trees and near tall buildings. Forerunner 305 also sports a robust ANT+® wireless heart rate monitor with softer, more comfortable chest strap and superior battery life. It eliminates cross-talk with other devices to reliably measure and send heart rate data, and it helps you train in your optimal heart rate zone. Take It to the Next Level Forerunner 305's courses feature lets you compete against previous workouts: you can compare your pace and heart rate to your past performance over the same run. Its multisport feature lets you seamlessly transition between sports (such as running and biking) without resetting it. Train indoors and still track your distance, pace and calories burned with the optional foot pod. This wireless sensor attaches to your running shoe and transmits distance and pace data to your Forerunner 305 so you can still use it when GPS reception is unavailable. Get the Data You Need You can customize any of Forerunner 305's 3 main data screens — up to 12 data fields give you instant feedback on your workout. And, as with every Forerunner, ea