MIO Alpha is the world's only continuous heart rate sport watch accurate at performance speeds. Before Alpha, continuous heart rate monitoring options fell short in terms of comfort and ease-of-use, requiring an uncomfortable chest strap. MIO Alpha's disruptive, first-of-its-kind technology changes the game-and training for it too.
Totally unobtrusive, Alpha delivers maximum performance in ultimate comfort. No chest strap means no worry it will slide down or chafe. Alpha's soft, stretchable silicone wrist band ensures a snug fit in a form factor that won't slow you down. So comfortable, you can wear it all day!