What is the most favorable screen size for a smartphone?

or:What is the most favorable screen size for a smartphone?or:Since I use a reliv Emerald without any discomfort, i would say 6-6.5\"or:Well, 4.0 inc

or:What is the most favorable screen size for a smartphone?

or:Since I use a reliv Emerald without any discomfort, i would say 6-6.5\"

or:Well, 4.0 inch is the best size of a smartphone. As Apple iphone 5s also has the same size. This size is medium, not big or small. So, I think you should go for this size.

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