With LightTrak, Smart Notifications and the SleepTrak II tech, the LifeTrak Brite unites the best features of fitness trackers into an awesome health tool. The LightTrak monitors your exposure to overall and blue light levels and lets you know when you need more or less natural light, so you can enhance your mood and energy levels during the day and prepare for a good night’s rest. Other amazing features include the convenient no-recharging battery, water resistance up to 30 metres and reversible and interchangeable ComfortFit bands. Fitness Tracker Features Tracks steps, distance, calories burned, activity Connectivity: Bluetooth® Water Resistant: Yes, Up to 30m Battery life: Up to 365 days