*take a breath, long post alert!* By now it is 99% certain that the new iPhone will have the long stretched 4" screen. Many people are satisfied with this size, but many are not. There are already threads flooding our forums talking about people disappointed with the screen size and even leaving iOS for android JUST to get a larger screen. I started wondering what would be the best way for Apple increase the screen size from this point (post 4" screen) if they decide to do so again. Now Im not saying that Apple will do this, or even that they should. Remember that bigger != better, because there will always be tradeoffs with usability. I tend to be extremely analytical, and once I get started, I cant stop.. So bear with me here Or dont, Im not holding you hostage! Basically I see 4 potential paths Apple could choose when increasing screen size. Below I lay out each of these possibilities, determined what I believed to be the most likely candidate for each scenario, and calculated all the corresponding math. Some of the calculations may be slightly approximated. I included the rumored iPhone 5 specs/size for reference. The first possibility is basically what Apple did for the iPhone 5 screen increase. Freeze one dimension and increase the other dimension. I definitely couldnt see Apple making the iPhone longer again so wider it is. The most logical possibility (to me) would be to simply widen the screen back to the 3:2 aspect ratio that we have had for the iPhone 1-4S. So I calculated that possibility and here are my results. Results Resolution: 1136 x 757 (reference: 1136x640) Aspect ratio: 3:2 (reference 16:9) Screen dimensions: 3.50 x 2.33 (reference 3.50x1.94) Diagonal length 4.2 (reference 4.0) Area: 8.14in^2 (reference 6.79in^2) PPI: 326 (reference 326) Analysis A benefit would be relatively simple app adaptation, the same as the current transition to iPhone 5. Initially apps could have black bars on the sides, and Apple would probably help make some easy way to stretch horizontally (similar to stretching vertically now). The huge negative would be how WIDE the screen would be. A 4.2 iPhone with 3:2 would be 0.39 wider than it is now. This is as wide as a 4.75 iPhone with 16:9 something to think about. The second possibility is maintaining the same aspect ratio and resolution, just stretch the entire screen. I chose 4.3 as the likely candidate here. This is large enough to be a substantial increase, but small enough to maintain a relatively high ppi Results Resolution: 1136 x 640 (reference: 1136x640) Aspect ratio: 16:9 (reference 16:9) Screen dimensions: 3.75 x 2.11 (reference 3.50x1.94) Diagonal length: 4.3 (reference 4.0) Area: 7.91 in^2 (reference 6.79in^2) PPI: 303 (reference 326) Analysis This would definitely be the easiest solution for devs. Everything would just work automatically. BUT it would cause a reduction in ppi (although still just above 300ppi) and not really add more usable space. It also may cause icons, buttons and look/feel to look bloated/odd because they would increased in size by approx 17%. [*]Maintain aspect ratio, but increase the size and double the resolution (like 3GS to 4 jump). This would allow you to increase the screen to any size and it would still have a superior ppi. Due to the difficulty of manufacturing such high PPI, I tried to pick the largest possible display I could imagine Apple allowing. So I picked 4.5 Results Resoluition: 2272x1280 (reference: 1136x640) Aspect ratio: 16:9 (reference 16:9) Screen dimensions: 3.92x2.21 (reference 3.50x1.94) Diagonal Length: 4.5 (reference 4.0) Area: 8.65in^2 (reference 6.79in^2) PPI: 580 (reference 326) Analysis A pro would be super high pixel density (but is that really necessary?), and pretty slow, easy transition for devs. Apps could run double pixeled until updated, and then devs could then take their time and eventually redesign their apps to make use of the extra pixels. The negative is cost and feasibility of such a high pixel density. Would also result in enlarged UI elements (by 27.4%) temporarily until apps were custom designed. Many apps would likely never redesign due to lack of incentive, and would stay enlarged. None of the above. Basically screw legacy resolutions. This one would be impossible to predict. Apple could hypothetically choose any screen size, at any resolution they wanted. But this would result in fragmentation. Apple would likely implement a lot of developer tools to ease the transition. None of these possibilities really sound ideal to me Can you think of any other possible ways to increase the screen size? Which way do you think Apple would be most likely to implement? Which would you WANT Apple to implement?