The usual Polaroid you see out there has a design limitation. You have to time the battery recharge yourself. You can't leave it plugged in overnight or it could fry the battery. Very very odd limitation. Otherwise a good deal.

The usual 7 inch Toshiba had an odd vibration when running. It was pronounced on the two units I tried and I found it bothersome so I didn't get that unit.

Happy shopping.

Bob