Fitbit Charge 2 (Black Strap, Size, Black silver

Keep a check on your heart rate and fitness better with this stylish looking fitness wristband from Fitbit. The band has a large OLED screen that displays your heart rate, all day activity, quality of sleep and your workout stats so you can stay fit the smarter way. The Cardio Fitness Level feature gives you a score so you know your progress. You can even work on your deep breathing with the Guided Breathing Experience. Additional Details: When fully charged, the battery can last for up to 5 days, depending on usage. The FitBit app is required to use this device's smart functions.