My father using that oppo neo 7. It has so many problems in that smart phone. The main disadvantage is battery backup due to very small battery of 2420 mah battery. And other problems are only 1 GB of ram due to less ram it slow down the multi tasking. And having slow processor of 1.2ghz quad core processor only. And only 8 mega pixel rear camera and 5 mp front camera only. Do not value for money smart phone. And less resolution of 540* 960 pixel. Do not have metal body design and many heating related problems.