I have use this for almost 2 months. I love having this Fitbit. It not only keeps track of your steps, but also your bpm, miles, calories burn, sleep, you can also keep track of weight you want to lose. battery lasts about 5 days depend on how you use it. remember to charge it before it dies or it takes a few hours to charge fully. Fitbit charge hr comes in a few colors, purple, and blue. It isnt waterproof so you would need to take it off when showering, swimming and doing dishes. Fitbit Charge HR costs about $160 which it is worth the price.