New open box item. May come in original retail box or non-retail packaging (white/clear bag). Box may show wear. The LifeTrak Brite R450 takes activity and fitness tracking to the next level - 24 Hr. Life tracking. In addition to basic activity tracking, Brite R450 uses your ECG accurate heart rate data to calculate calories burned and enables you to optimize your fitness. Brite R450 constantly measures your levels of exposure to light and to the important blue wavelength. It lets you know when you're not getting enough or too much blue light, so you can take steps to improve your mood and energy levels and prepare for a better night's rest. Brite R450 automatically knows when you fall asleep or take a nap and nudges you awake with a gentle vibrating alarm, at the optimal time based on your own sleep quality data, to make sure you awake refreshed. Brite R450 supports 8 types of smartphone notifications, including IM, SMS, reminders and notifications from your favorite apps, to help you stay in the loop. Finally, Brite R450 syncs with the LifeTrak App to save more than 7 days of data so you can get deeper insights and long term trends and turn good intentions into healthy life long habits. Wear all this personalized intelligence on your wrist anywhere, anytime, and all the time because it's water resistant and you never need to wear a chest strap or recharge a battery. Take your fitness and health to the next level today. Get Active. Lose Weight. Sleep Better. Live Healthy. Follow your heart.Smartphone NotificationsLight TrackingSleep QualityECG Accurate HeartWireless and App Bluetooth Connection