what do you mean b SOT?

What the hell is that?
Never heard of.

Or do u talking bout the battery on standby?

battery consumption is vary depends on how long u let your screen on
but i've used it with average condition like call, sms, FB, browsing online and WIFI during night and the battery can last for 2 days
yes, seriously, its 2 days.

full charge at 6.00am in the morning, used it casually and i got it 60% at 10.00pm
continue next day its ~10% at 11.00pm
if the screen is off, the battery is drop only by 1% per night. not per hour.

For me full charge at 6:30 am in the morning but average-heavy used, browsing,downloading/watching TV series, play games and the battery will be 20% at midnite (12am). The battery performance is OK for me. considering that i used for work and leisure since its dual sim... 

even china sell cheaper, i doubt come to here can be any lower
so how much is the phone price now?
btw i love ur boobs pic