I personally love this site GSMARENA.COM . Website name already brief everything . One of the best site for getting information about mobile phones like their release date , specification , prices , comparision , news , videos , reviews and everything . I did lot of research before buying my smartphone which I am using right now . It provides me everything which I want to know . You can easily locate the information about all types of mobile phones , gadgets here and by applying filters like price range , company , ram needed , rom needed , size , color , popularity and etc that filters helps you alot what you want and what you looking for ?
Google of mobile phone