I am using lenovo k 3 note its performance is very poor and it is a hanging mobile if you cab continously using its become too hot it is a worrest product in lenovo.its battery backup is very good and it is waste of money if you buy the mobile simply sell the mobile and buy another brand mobile because money is precious there are many mobiles available in our market take any one but dont choose this one because I am facing many problem in this mobile the display also very hard to swipe and the hardware is also very bad