Omron Alvita Optimized Pedometer 4 activity modes: tracks steps, aerobic steps, distance & calories burned Tri-axis Technology counts steps accurately no matter where it is positioned Automatic reset each day Stores up to 7 days of information Includes: pedometer, holder, lithium battery, screwdriver, instruction manual Tracks steps, aerobic steps (i.e. healthy steps), distance walked and calories burned Features smart sensor technology so it won't miscount steps Keeps an accurate step count in any positionflat, vertical or horizontal Resets automatically at midnight for the most precise daily count Maintains a weekly log by storing seven days of activity data