Users will tell you - having to wear the constrictive strap is cumbersome, uncomfortable and can chafe.
What is so cool about Alpha is that the athlete can get heart rate accuracy exactly comparable to chest-strap heart rate monitors, but the technology is self-contained in a comfortable wrist watch.
To eliminate the need for a strap, MIO chose another technology that has been used to measure heart rate: optical sensing (for the techno-inclined – photoplesmographic technology).
In optical sensing, a light is shone onto the skin, allowing the measurement of blood flow through the capillaries and the determination of heart rate. The technology has existed for some years - the heart rate monitor finger clip you may see at the hospital uses it.
Until now, the technology could not be used on athletes, or anyone moving around, because the clutter of other signals generated by noise from movement would interfere with the readings being captured by the optical sensor.
Mio ALPHA solves this with a built-in accelerometer to compensate for signal disturbances generated by motion, while noise-ﬁltration software ensures a clear signal is delivered to the Alpha’s micro-processor. Optimizing all of these aspects required significant software development, testing and multiple design iterations.
The result is a device that achieved a 0.99 correlation with EKG in independent testing at San Francisco State University.
Mio ALPHA provides continuous, EKG-accurate heart rate readings at running speeds higher than 14 mph.
Mio ALPHA’s soft, double-injected silicone strap provides an exceptionally comfortable fit. Its contoured “wrist hugging” profile ensures optimal sensor performance and a low profile.
The design results in a durable, active watch that can handle the elements yet is refined enough to be an everyday accessory.
The Mio ALPHA’s two button watch face is simple by design. The Alpha begins recording heart rate with the touch of a button while setting heart rate training zones in seconds.
In workout mode, the Alpha transmits a BLE 4.0 signal to your smartphone, leveraging existing and future mobile fitness apps for analytics and GPS data. The Alpha delivers real insights into training without complexity.
Importantly, the Alpha’s reliance on mobile connectivity allows the device to remain user friendly, minimalist and stylish. Mobile connectivity allows the Alpha to be lean yet highly functional, which appeals significantly to performance-oriented athletes.
The Mio ALPHA is truly the first fitness device that combines laboratory accuracy and advance engineering with mobile connectivity under the most intense performance conditions.
Get your Mio ALPHA Heart Rate Sport Watch >
Get the MIO newsletter Sign up to receive product news, special offers and more!