MIO M2W29P2C2L3 Active Strapless Heart Rate Watch EKG accurate heart rate Tracks total calories burned Steps, speed and distance All-in-one activity monitor with on-demand EKG accurate heart rate. Includes a Diet Diary which tracks and displays total calories consumed against calories burned. Measures and stores your 7-day metabolic expenditure which is a complete record of the calories you burn all day, not just during exercise. Multi-function activity monitor uses advanced accelerometer technology to accurately count steps, estimates speed and distance traveled as well as calories burned. Visual indicator of exertion level based on heart rate and personal data such as age, weight, height, gender, and target zone. Instantly know if you're working at the correct intensity to achieve your personal fitness goals. Includes Percent of Maximum Heart Rate, Heart Rate Recovery timer & Resting Heart Rate. Measures and displays your Resting Heart Rate, Upper and lower Heart Rate Alerts