SMARTFLY 30 Days Memory Step Calories Distance Counter Wristband Pedometer Watch with 3D Sensor Fitness Activity Tracker ACCURACY - Silent 3D Advanced Tri Axis walk sensor technology. Unlike pedometers that use a pendulum design, this pedometer uses 3D walk sensor technology so it won't miscount steps and you can position your pedometer anywhere. MONITOR - Measures daily step count, distance traveled and calories burnt - units can be imperial (mile, inch, lb) or metric (km, cm, kg) - input your stride length and weight for accurate personal readings. TARGETS - Set your daily step target, with progress bar for easy viewing and LED and beep indicator when you reach your daily target. Plus Activity Time shows your daily active time while walking. 30-DAY MEMORY - Automatically stores up to 30 days of activity so you can keep motivated and track your progress. The pedometer also automatically resets at midnight so you can easily track your DAILY steps, distance and activity. - - SMALL & LIGHT - Easy to wear and compact. SMARTFLY 100% Customer Satisfaction Guarantee, If for any reason you are not happy with the performance of your product , simply contact us and we will do our best to help, whether though replacement, repair or refund. - - * 12 MONTHS WARRANTY *