@noob : Frankly speaking Xperia U is not a much of an upgrade over SGS.
Also IMO this isn't the time to get any new Android phone running GB now. You got to wonder then when will it then JB then(if at all it gets it anyway)!!
Yeap I agree Samsung galaxy S is better than Xperia U.So don't waste your money if you alrady have Samsung galaxy S.You can sell Samsung galaxy S and than purchase Xperia S or Samsung galaxy S2.
You already own Lumia and SGS, why not wait for some time and save n gather some money and get something good which is much better than both something like Xperia S, Note or One X
Sorry for the confusion. This phone is not for me , it is for my friend. I will check if he can increase his budget.
I have sold both SGS & stupid Lumia 800 for 11.5K each and got a Galaxy Nexus by paying difference of 1K.
where did u buy galaxy nexus???
and ask your friend to wait for samsung galaxy ace 2..
For your friend Xperia U is good option but only if he thinks 4GB is enough for him.
Otherwise he can buy Neo V for 16k or Sola for 18k,