Monitor & review your entire daily performance Mio FUSE is a sleek wristband that combines all the features of a heart rate monitor, sports watch, and activity tracker. Heart rate data is EKG accurate and does not require the use of a chest strap. Monitor the intensity of your workouts and your movement throughout the day for a more comprehensive look at exertion, recovery, and overall fitness. All-day activity statistics include steps, calories, distance, and goal progress. Stay connected to your favourite apps & devices Use the Mio GO app to configure your personal settings, and wirelessly and automatically sync your activity data. You can also track your workouts with dozens of popular third-party fitness apps, such as Strava, Wahoo, MapMyRun, MapMyRide, Endomondo, and more. FUSE transmits heart rate via Bluetooth Smart (4.0) and ANT+ to smartphones, bike computers, GPS watches, and other compatible devices. Check compatible devices and apps here Continuous technology keeps the beat An electro-optical cell senses the volume of blood under the skin. From there, sophisticated algorithms are applied so that the heart's true rhythm can be detected, even during high intensity workouts. Just as accurate as a heart rate chest strap With a 0.99 correlation to EKG in laboratory testing, Mio optical heart rate technology matches or outperforms the top heart rate monitor chest straps - even while running or cycling at high performance speeds. Innovative wearable tech with unparalleled comfort Made of soft, durable silicone, Mio FUSE is a lightweight and comfortable wristband featuring a curved touchscreen display that shows your activity and heart rate data at a glance. With no uncomfortable chest strap required, FUSE makes it easy for you to accurately monitor your heart rate during your workouts.