?Display:       0.84\/0.86 inch LCD screen           Language:       Chinese\/ English           Optional Colors:       Black\/ blue\/ red           Dimenssion:       20.5(W)X 13(H)X 130-198(C)MM           Battery:       60mAh           Standby Time:       10~12 days(In Theory)           Bluetooth:       4.0 or above           Charge Method:       USB charging           Buttons:       Support physical buttons           PCBA:        Main chip:TI-CC2541           OS for APP:       Support iOS7.0 or above｣ｬ Android 4.3 or above           Consumption:       To Enlarge Standby time｣ｬ and less charging times           Time:       Support           Date:       Support           Steps Monitor:       Support           Distance Monitor:       Support           Calorie Monitor:       Support           Goal Display:       Support           Longtime-Sitting:       Support           Incoming Call Reminder:       Support(Number display)           Messages Reinder:       Support(SMS｣ｬ WeChat｣ｬ E-mail｣ｬ QQ｣ｬ Facebook｣ｬ Twitter)           Alarm Reminder:       Support           3D Sensor:       Support           Loss prevention to remind:       Support