What is ECG and what does ECG accurate mean?

An electrocardiogram, ECG or EKG, is a measure of the electrical activity of the heart. This electrical activity regulates heart contraction, so an ECG measures an exact heart rate and rhythm. ECG is the most accurate, medically accepted way to monitor heart rate.

Is MIO as accurate as chest strap monitors?

Watches with a chest strap often rely on analog wireless transmission, making them prone to radio frequency noise and “cross talk” between units (like that between portable or wireless phones). Also, by relying on radio transmissions, chest strap monitors lag behind the true heart rate, due to the need for excessive filtering in the software to reduce reading fluctuations caused by noises and muscles.
 
MIO is a self-contained unit with built-in sensors, making it immune to environmental noises. MIO Watch is as accurate and more than typical watches with a chest strap because MIO’s superior digital filtering techniques allows it to follow your true heart rate, even as your heart rate changes. And you don’t have put up with that annoying chest strap!

MIO watches have been tested to verify their accuracy.  Click here to view the research results.

MIO is a tool you can trust to provide you with ECG accurate heart rate readings so that you'll know exactly what’s going on in your body.