[header] How to buy an android phone [title] Decide how you will use it. [step] This question defines the remaining steps and is the most important. [substeps] Do you only need your phone for phone calls, texting, and facebook? If so, most phones today have these options and you can save money by purchasing cheaper phones for these purposes. 
Is the phone going to be used for multimedia and gaming? If so, a mid-range to high-end flagship phone will be in order. These tend to have more storage for taking hd pictures and video, as well as higher level processors and cameras.