Get the most out of your daily energy with Jaybird Reign, the world’s best activity tracker. This smart wearable knows when it’s time for you to get up and get moving and even how much sleep you’ll need to make it happen. Reign holds you accountable for exercise by displaying your daily activity. The Go-Zone feature measures your heart rate among other metrics to show you how much energy you actually have left and pushes you to go further and maximize it. Jaybird Reign can even detect patterns and signs of fatigue and give you personalized sleep recommendations for the most energy. The stylish band comes in a variety of colors and is comfortable for an all-day all-night fit. Start pushing yourself further with the Jaybird Reign.