Def something around 4.3". Anyone who says it's too big has not used it. I can't even look at an iPhone anymore. The screen is tiny. Not to mention that with a smaller bevel and thinner, phones like the galaxy s2 have a much bigger screen, but fit great in a pocket. I carry my samsung galaxy s2 in my pocket all day at work, and I barely notice it is there. Sometimes I even check my pocket because I can't tell that I still have it. I think every manufacturer is seeing that 4 inch+ screens are really hitting it big, and for good reason. I'm not sure how I feel about the note. I feel like some pants I wear would not hold it so well. 4.5 is also a good size.