Let me tell u today among the best keypad phones I would suggest you to choose jio phone .this is the best keypad phone I have used.All the features are great.it is not much expensive also .In this generation of 4g phone all cannot buy a expensive 4g phone .if one wishes to buy he/she must pay atleast Rs 8000 which is not possible for everyone.so this jio 4g phone is the best budget phone.Its camera is also good.the speaker quality is also good .It supports facebook also.You can even video call on it.
My suggestion wanna buy 4g phone in budget buy jio handset.