The Polar M430 is a GPS running watch that accurately measures heart rate from your wrist using a six LED solution. It features integrated GPS with A-GPS data for improved satellite position prediction and a built-in accelerometer for indoor activity tracking. This watch offers advanced training features like the Polar fitness test, personalized running programs, and running index via Bluetooth. It is water-resistant, tracks activity and sleep 24/7, and provides vibrating alerts and smart notifications for a runner-friendly experience. Data syncs automatically to the Polar Flow app via Bluetooth. This sport watch model is exclusively available on Amazon. Color: Black