Fitbit Charge 2 Activity Tracker + Heart Rate, Large

Fitbit charge 2 smart band wrist accelerometer, altimeter, optical heart rate sensor calendar, silent alarm, alarm, text messaging heart rate, sleep quality, calories burned, steps taken, distance travelled, pace Bluetooth 4.0 GPS 120 hour 0.84" teal, silver elastomer, stainless steel buckle sports, running, tracking water resistant elastomer, stainless steel buckle. Fitbit Charge 2 Activity Fitness Tracker and Heart Rate, Large