The Polar M600 is a new Android Wear smartwatch that works with iPhones and Android phones.
It has GPS so it can measure your pace, distance, speed and more when running and cycling.
There's an optical heart-rate sensor on the back with six LEDs, which should make it more accurate than regular ones with one or two LEDs.
It can also measure interval workouts.
The watch can display notifications from your phone, run apps and provide personalized Google cards on local weather and traffic.
Battery life is said to be up to 48 hours on Android and 24 hours on iOS.
You can view detailed information on activities and workouts in the Polar Flow app.
The app can show how long you sleep, stand, walk and run.