I love this tracker. It is so easy to use. The charger is great, plugs directly into USB port. On top of tracking your exercise,this also monitors your heart rate and ells you when to inhale and exhale , hours of sleep you get and figures out what you should be getting. This tracker also works with your phone and gets messages and calls. I haven't used that part much. This is made of high quality.if you're looking for a tracker I recommend this one for sure