The TomTom Runner / Spark 3 Cardio has all the functions of the standard sports watch but with the added Heart Rate sensor built into the headunit. This enables you to track your heart rate performance throughout your workouts and monitor your performance without the need to wear a heart rate strap around your chest.
As well as this function the watch offers you the following features
Built-in Heart Rate monitor
See your heart rate on your wrist with the built-in heart rate monitor. No chest strap needed.*
GPS Tracking
Time. Distance. Speed. Pace. Routes. Live stats, on the go.
24/7 Activity Tracking
Capture your heart rate, steps, active minutes, and calories burned throughout the day.
Multisport Modes
Track all your sports. Run. Bike. Swim. Treadmill. Gym. Indoor Cycling and more.
Route Exploration
Find your way back to the start and explore new routes.
Indoor Training Mode
Track your performance on the treadmill or in the gym.
Perfect Fit
Select large or small watch straps to ensure the perfect fit for your wrist.
Customisable Straps
Switch watch straps to fit your kit or match your mood.
Wireless Syncing
Sync your watch wirelessly with your favourite workout apps.
Water Resistant to 40m (5 ATM)
Get wet. Dive in the pool and workout in all weather conditions.
Race Mode
Select one of your past workouts to race against.
Interval Training
Improve speed and fitness with custom work-rest sessions
Ultra-Slim Design
Notice your watch only when you want to.
Social sharing
Celebrate your success with friends. Share your workouts online.
QuickGPS
Get started faster with quicker GPS reception.
One-Button Control
Navigate easily through menus with a single button.
Long Battery Life
Get up to 11 hours of battery lifetime when tracking yourself with GPS
Automatic sleep tracking
Track your sleep patterns and know if you're getting the sleep you need.
5 Heart Rate Training Zones
Training in 5 different heart rate zones helps to get results faster.
Audio Performance Feedback
Push yourself with audio feedback on your performance.