Keep your skin as protected as can be with the SunSprite Wearable Light Tracker. Designed and developed in part by Harvard doctor, this incredible device is able to track both bright light exposure as well as UV intensity as studies have shown increased light can profoundly improve your overall health. Syncing with the iOS or Android app on your smartphone, the SunSprite Light Tracker effortlessly records the time spent in these conditions and the app enables you to keep track of your progress in real time. The exterior is equipped with an LED progress bar so you can view your progress in 10% increments throughout the day. Requiring no cables or cords, the SunSprite Light Tracker is totally solar powered and is worn comfortably on your clothing.