Understand your entire body’s metrics with a glance with the Aupalla 21 HR Fitness Tracker. This wrist wearable works tirelessly all day to track your body. At its most basic, the 21 HR is an activity tracker. It records your steps with ease. However, the intelligent software inside goes much further. Using the app, you can choose between 21 different sports modes to calculate your true activity. In addition, it also keeps track of your sleep quality and your calories. On the under side is a heart rate module so you can check in and stay on track. The 21 HR comes in a variety of colors to suit any style. It’s also waterproof to withstand both your rigorous workouts as well as your everyday. The app, for iOS and Android, also helps you record GPS information to really tune in to your activity.