This nothing other than waste of money. Although now a days no one goes for it I am just sharing my experience.
My friend had a Smart Tab 1.
Main disadvantages I found.
Less storage.
Cannot play heavy games.
Camera( 2MP) just for sake.
No Bluetooth support.
No GPS.
No Compass.
When you cannot store much media, cannot play games smoothly, cannot take good pictures, why will you invest money for such a device.