Bsnl Penta tablet is very very bad. This tablet speed down when I am insart 4 gb memory card. This tablet is cheap but quality is low. When I am download game Subway surfer this game not run proper. The tablet speed very poor. This tablet use for only calling. Penta tablet battery is average. When use internet this tablet processing internet is very slow. When I am open any YouTube video tablet not play proper way. This tablet touch screen quality is avrage. This tablet price is OK but quality not good.