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Monitoring your heart rate during training provides the instant feedback you need to train more efficiently and see results quicker. Train at your optimal heart rate with the heart rate monitor on your TomTom Spark GPS Fitness Watch.
Measuring heart rate is important because the same run may take different levels of effort from day to day. Factors like stress, sleep, recovery time and hydration all play a part. Simply swap your old heart rate strap for a TomTom Spark heart rate monitor watch and see at a glance when to ramp it up or ease off, so that you work out, not burn out.
See how your heart rate changes throughout the day, and check your resting heart rate to see how you recovered from your last activity. Measuring your heart rate 24/7, the TomTom Spark takes heart rate watches to a new level.