LECO M3 Band , Its More Feature Full and Much Lower Priced Than Leco M3 Band. Help you keep fit: it learns your activity level including amount of steps, mileage, heart rate, and records calories burned throughout the day, improve your overall wellness today, tomorrow and well into your future{ Monitor your sleep: Set the sleep mode when you go to bed to track the quality of your rest, nudging you toward a healthier lifestyle Keep you informed: You can get SMS message, incoming calls and calendar alerts when you are working out. You can also set the drinking or sedentary reminder