can you suggest me a phone??

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i would like to buy a ohine and i would like to have the below mentioned features in it too..and that it should be a smart fone.. the features that are there in ma mind are: long battery life responsive flexibility stable bluetooth IR fast large screen good quality camera 3G with video call capabilities Wifi Large RAM Strong RF Intelligent Power management supposrts majority of multimedia features decent size and weight..+ is der anything that someone can add on to this?? n please suggeest a gud fone... which company?? n wats de cost...