Hello Friends, today I am reviewing on Karbonn k9 smart 4G . This phone is prized at under 5000 rupees . This phone is a 4G VoLtE phone. I am using this phone for 2 month. this phone offers descent specifications . But the processor of the phone is very bad and the ram of the phone also doesn`t perform well . The camera quality of the phone is average and the design is okay . The battery of this phone drains out very vastly. The sound reception of the phone is also average . The screen resolution of the phone is very low and bad. This phone should be value for money for the beginnerdnof android operating system.