RS800CX Run Heart Rate Monitor Watch

For those who are seriously into their running, the RS800CX helps to plan, monitor and analyze every part of your training. Its range of personal training zones means you can train at the right intensity, and with advanced features, that come along with the s3 stride sensorTM W.I.N.D., you'll be able to track your progress with running index as well as stride length and running cadence.