Mio is a brand of heart-rate monitors designed to fit over your wrist without a chest strap. Liz Dickinson founded the company in 1999. Frustrated and attempting to lose baby weight, Liz created a product that would help her achieve her fitness goals more efficiently. Mio hea... Read Morert monitors are available in many different sizes with different features. Mio's heart rate monitors fit over your wrist. Not only do these monitors track heart rates, but they also calculate calories and keep track of the distance covered in a day, all while being comfortable to wear. Mio also offers accessories for the wrist heart monitors such as wrist straps available in different colors. Partnering with Swedish research lab Philips Electronics, Mio introduced its newest product: the Mio Alpha line. These Alpha heart monitors use the latest technology to help keep accurate records and assist people in achieving their fitness goals. The Alpha heart monitor also features Bluetooth technology and can connect with a range of apps available on the iPhone to sync all the tools needed to achieve fitness goals.