TomTom wants to be the device on your wrist, with its latest line of smartwatches.These are efficient and powerful running watches that are designed for the enthusiast, rather than those who want a standard fitness tracker. The Spark 3 Cardio comes with all the features you would expect from a running watch including a built-in heart monitor, GPS tracking and 24/7 activity tracking. Along with these features TomTom has introduced Route Exploration which allows you to find your way back to your starting point and then explore a new route. With an ultra-slim design the TomTom Cardio is also water resistant up to 40 meters allowing you to get wet, dive in the pool and work out in all conditions. Indoor training mode, race mode, interval training and five heart rate training zones are some of the cool features you can look forward to exploring with your TomTom Spark 3 Cardio. The TomTom Spark 3 Cardio sports a long battery life and the ability to hold up to 500 songs, which makes this the ideal watch for the fitness enthusiast.