Features of Omron HJ-321 Pedometer: 4 activity modes: tracks steps, aerobic steps, distance & calories burnedTri-axis Technology counts steps accurately no matter where it is positionedAutomatic reset each dayStores up to 7 days of informationIncludes holderTracks steps, aerobic steps (i.e. healthy steps), distance walked and calories burnedFeatures smart sensor technology so it won't miscount stepsKeeps an accurate step count in any position–flat, vertical or horizontalResets automatically at midnight for the most precise daily countMaintains a weekly log by storing seven days of activity data