high definition OLED display USB rechargeable Pedometer Rechargeable battery anodized aluminum design size:40 x 38 x 9mm Production Description high definition OLED display USB rechargeable PedometerFunction:clock,steps,mile,calorie,alarm,metric system,step plan 7 days memory Rechargeable batteryEL back light Anodized aluminum designFirmware version upgrade via USB NameValueBrandKYTO or ...