Garmin Forerunner 110 GPS-Enabled Sport Watch with Heart Rate Monitor (Black)

The altimeter measures vertical speed, and works with the HR monitor so you can see the physiological impact of both altitude and vertical movement
The heart rate monitor gives an objective measure of exertion, includes a heart rate zone alarms and Suunto Comfort Belt HR transmitter
Displays real-time barometric pressure and temperature, weather trend graph of the past four days barometric data

Digital Transmission
Comfortable Flex Tech Fabric Strap
Adjustable strap fits most body types

Measures your running speed and distance when paired with a Bluetooth Smart ready device and a mobile training app such as Polar Beat
Ideal for running on a treadmill, indoor track, or on the muddiest trail
After your workout, view and analyze your running cadence and stride length on polarpersonaltrainer.com, our free online training diary

Provides live, accurate heart rate to compatible mobile training apps, including Polar Beat Uses Bluetooth Smart technology providing ECG-accurate heart rate to any Bluetooth Smart ready device utilizing standard heart rate profile
Compatible with iPhone 4S, iPhone 5, iPod touch (5th generation), iPad (3rd & 4th generation), iPad mini and iPod Nano (7th generation)
User replaceable battery, For optimal battery life, detach transmitter from chest strap after every use