you forget 150 internal MB(you won't notice now but later you will cursing yourself ) , 600MHZ(even turtle will win race against this)
low cost android mobile are fail . i already experienced and i don't want my friends to experience same thing .
if you want android mobile . My advice don't even go below 800MHZ CPU and 1GB internal Ram even if you have to buy second hand .
Last and least battery backup of android mobile is very low . You should say thanks to GOD if you get 1 Day battery