Meet the Mio ALPHA 2: a continuous heart rate watch that helps you measure your heart rate without having to rely on a chest strap. It has configurable heart rate zones with LED light indicators to help you stay within your desired zone. It connects to your iPhone or Android device via Bluetooth. The memory holds up to 25 hours of workout data.
The watch displays calories, distance, pace & speed. It automatically syncs to its companion app. It is water resistant to 30 meters. Sets you back $199.