Iball tab is really good product its good in use and work smooth.
This is a 7 inch display tab and its good for internet uses. You can easily access the internet on this big screen and touch is also very nice. you can enjoy the chat and other android benefit but this tab is not good for camera and video watching purpose.
Both side of cam is bad for all purpose. screen is not for HD videos. some time you have to face hanging problem but its not for all time. Not so easy to carry in hand. you can use it when you are seated but not is to carry in walk time.
In 4000 budget its good big sixw screen phone.