Video Chat applications not working and also wifi reception is bad.
hangs many times
many of the apps and games are not supporting.
poor build quality
battery life is good
touch is also good
my dongle is not working with it.
after 3 months there is some lines on the screen and service center people saying its not coverd in warrenty I am using it as it is with fine lines on the screen
don’t go for karbonn if you have low budget go for micromax tabs their service is also better