Clip it and go! 3D sensor and accelerometer are accurate at any angle. Ultra quiet. Tracks (1) steps, (2) cumulative steps for 99 days, (3) distance in miles, (4) calories burned, (5) fat burned, (6) current temperature, (7) current humidity, (8) heat index, (9) UV exposure and (10) time of day. Attach with handy carabiner clip, or carry in pocket. (Unit slides out of clip for toting in pocket.)
German BOSCH motion sensor and Japan-made thermometer/hygrometer. Random movement filter means only exercise steps are logged. Unique heat index meter with 5 zones, “comfortable” to “danger.” Two replaceable Lithium battery included (CR2032).