The Fitbit Ionic is a feature-packed wearable that provides fitness guidance, health insights, music storage, and much more. This sleek-looking timepiece comes with a 1.42" color touchscreen. In terms of fitness tracking, the Ionic offers both multi-sport functionality and traditional all-day activity tracking. Complementing these modes are the Ionic's sophisticated array of sensors, which include an optical heart rate monitor, built-in GPS, 3-axis accelerometer, altimeter, and more-all working to provide you with the most accurate health data possible.