The MIO Alpha Strapless Heart Rate Monitor is a world's first of its kind! It is as accurate as a chest strap without the discomfort. Just put your watch on and that's all you'll need! The two light beams under the watch sense the volume of blood flowing and apply specific algorithms to the pulse signal. Even if you run at high speeds, you will be sure to get the most accurate heart rhythm.
- Can be connected to an iPhone 4S or 5 to get added data such as speed, distance, pace or GPS. Just use Bluetooth Smart (4.0) technology to connect with compatible devices
- Compatible with a wide range of fitness apps
- Custom heart rate zones: Set your heart rate zones and optimise your workout. Visual and audible alerts will ensure that you are still in you zone
- Data review: Review the total exercise time, average heart rate, and time zone for your last workout
- A simple timer and a clock are also built-in for workout length timing
- USB charging dock with magnetic alignment
- Rechargeable lithium polymer battery