Come and Check Our Promo Solutions.Track your daily fitness progress with this wearable activity tracker. Power consumption: one week of normal use, 15 days of standby.It has function as following:Step counting,ranging,calorie consumption management,sleep management,time display,event reminder (drinking water,taking medicine, meeting, etc.)caller ring vibration,message reminder,clock display,sedentary reminder,vibrating alarm clock.Save 7 Day exercise data.It can use for Phone 4S /5/5C /5S/6/7,IOS7.0+ and Android 4.3+.There are 13 languages are installed,including English,Spanish,Chinese,etc. Pls check inventory and detailed info with us before placing your orders.