For those ov you talking about Xperia U, I recommend you to go through the reviews at gsmarena.com before buying.
I have one and hate it. My phone often hangs and at times, it stops typing. When I bought it (brand new), I even faced an issue ov not being able to hear the other side. The phone or hearing part and vibration mode (I never use ringtones) wouldn't even work. To overcome all ov these problems, I have to restart. Also, using other mobiles' chargers causes a really stupid issue while typing.
I wanted to sell it within two days ov buying but lost time as I had to go abroad and now it's a bit late to get good money.
Before buying, I asked two friends who already owned the same. Spiderman said his Xperia U never had a single issue but Asad said he had faced them all and now you see I did too.
I have no idea about Xperia J but just maybe it would have been a better option. I tried to save the Rs. 2-3000 difference.
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