The biggest difference which i have noted between chinese tablets and european tablet is that battery timing. I have a tablet baught from germany in 130$. its battery runs for 7 hours continues video or wifi. Another tablet which I have got from hongkong is of same cost but its china product. Its battery runs 4-5 hours maximum.

I suggest when you buy a tablet, you must see battery Mah value..often written in specs. like 2800mah...4200mah...this value decides how good is battery.4200 is better than 2800mah