Stay on track with all of your fitness goals with the Mio FUSE Heart Rate and Activity Tracker. Available in your choice of crimson, cobalt, and aqua, this wristband tracker comes in two sizes to fit any size wrist. The Mio FUSE monitors your heart rate with incredible accuracy to alert you of your peak during your workout. In real time, this tracker totals your calories, steps, pace, as well as your progress towards your goals throughout the entire day. Dynamic and flexible for your lifestyle, the Mio FUSE works underwater with its rugged design and detailed technology. The display is customizable as is the heart rate range. It can store up to two weeks of activity data before you need to sync it. Elevate your performance with the Mio FUSE Heart Rate and Activity Tracker.