How active are you on a daily basis; Simple changes to your lifestyle can lead to a fitter, healther you and it starts with simply moving more often. The Sportline Performance Activity Tracker records calories burned, steps taken, distance walked and total time actively moving during the day. Measures steps, distance and calories. Monitors all day movements ; activity time. Auto stride length. Measures in imperial and metric units. Multi body position monitor. Size H4.9, W3.9, D4.6cm. Weight 0.12kg. Batteries required 1 x button cell (included).