... Garmin Forerunner 305 GPS Receiver With Heart Rate Monitor,garmin gps,garmin portable gps High-Sensitivity, Watch-Like GPS Receiver ... Sharing Technical Details GPS: High-sensitivity SiRFstarIII architecture Heart rate monitor: Yes Measurements: Heart rate, speed, distance, pace, and ... pixels Alerts: Time, distance, pace, and heart rate Heart monitor transmission range: 9.8 feet Waterproof: Yes, to IPX7 ...