Close ad

You may have wondered why the iPhone is the size it is, or why the iPad is the size it is. Most of the things that Apple does are not accidental, every little thing is thoroughly thought out in advance. The same is true for any size iOS device. I will try to decipher all aspects of display dimensions and aspect ratios in this article.

iPhone – 3,5”, 3:2 aspect ratio

To fully understand the iPhone display, we need to go back to 2007 when the iPhone was introduced. Here it is important to remember how the displays looked before the apple phone was launched. Most smartphones of the time relied on a physical, usually numeric, keyboard. The pioneer of smartphones was Nokia, and their machines were powered by the Symbian operating system. In addition to non-touch displays, there were a few unique Sony Ericsson devices that used the Symbian UIQ superstructure and the system could also be controlled with a stylus.

In addition to Symbian, there was also Windows Mobile, which powered most communicators and PDAs, where the largest manufacturers included HTC and HP, which absorbed the successful PDA manufacturer Compaq. Windows Mobile was adapted precisely for stylus control, and some models were supplemented with hardware QWERTY keyboards. In addition, the devices had several functional buttons, including a directional control, which completely disappeared due to the iPhone.

PDAs of that time had a maximum diagonal of 3,7" (e.g. HTC Universal, Dell Axim X50v), however, for communicators, i.e. PDAs with a telephone module, the average diagonal size was around 2,8". Apple had to choose a diagonal in such a way that all elements could be controlled with fingers, including the keyboard. As text input is an elementary part of the phone, it was necessary to reserve enough space for the keyboard to leave enough space above it at the same time. With the classic 4:3 aspect ratio of the display, Apple would not have achieved this, so it had to reach for a 3:2 ratio.

In this ratio, the keyboard takes up less than half of the display. In addition, the 3:2 format is very natural to humans. For example, the side of the paper, i.e. most printed materials, has this ratio. The slightly widescreen format is also suitable for watching movies and series that have already abandoned the 4:3 ratio some time ago. However, the classic 16:9 or 16:10 wide-angle format would no longer be the right thing for a phone, after all, remember the first "noodles" from Nokia, which tried to compete with the iPhone with them

Demands for an iPhone with a larger display are heard these days. When the iPhone appeared, its display was one of the largest. After four years, this diagonal has of course been surpassed, for example one of the current top smartphones, the Samsung Galaxy S II, boasts a 4,3" display. However, one must ask how large a number of people can be satisfied with such a display. 4,3” is undoubtedly more ideal for controlling the phone with your fingers, but not everyone can like holding such a large piece of cake in their hands.

I had the opportunity to test the Galaxy S II myself, and the feeling when I held the phone in my hand was not entirely pleasant. It is necessary to keep in mind that the iPhone must be the most universal phone in the world, because unlike other manufacturers, Apple always has only one current model, which must suit as many people as possible. For men with big fingers and women with small hands. For a woman's hand, 3,5" is definitely more suitable than 4,3".

Also for that reason, it can be expected that if the diagonal of the iPhone were to change after four years, the external dimensions would change only minimally and the enlargement would thus take place rather at the expense of the frame. I partially expect a return to ergonomic rounded backs. Although the sharper edges of the iPhone 4 certainly look stylish, it is no longer such a fairy tale in the hand.

iPad – 9,7”, 4:3 aspect ratio

When it started to talk about the tablet from Apple, many renders indicated a wide-angle display, which we can see, for example, on most Android tablets. Much to our surprise, Apple returned to the classic 4:3 ratio. However, he had several valid reasons for this.

The first of these is certainly the convertibility of the orientation. As one of the iPad ads promoted, "there is no right or wrong way to hold it." If some iPhone apps support landscape mode, you can see for yourself that the controls in this mode are not nearly as great as in portrait mode. All the controls become narrower, making it all the more difficult to hit them with your finger.

The iPad doesn't have this problem. Due to the smaller difference between the sides, the user interface can be rearranged without problems. In landscape, the application can offer more elements, such as a list on the left (for example, in the mail client), while in portrait it is more convenient to read longer texts.



An important factor in aspect ratio and diagonal is the keyboard. Although writing lyrics has sustained me for several long years, I never had the patience to learn to write all ten. I've gotten used to typing fairly quickly with 7-8 fingers while having to look at the keyboard (triple kudos to the MacBook's backlit keyboard), and I've been able to transfer that method to the iPad quite easily, not counting diacritics. I wondered myself what made it so easy. The answer came soon.

I measured the size of the keys and the size of the gaps between the keys on my MacBook Pro, and then did the same measurement on the iPad. The result of the measurement turned out to be that the keys are the same size per millimeter (in landscape view), and the spaces between them are only a little smaller. If the iPad had a slightly smaller diagonal, typing would not be nearly as comfortable.

All 7-inch tablets suffer from this problem, namely RIM's PlayBook. Typing on the small keyboard is more like typing on a phone than on a laptop. Although the larger screen may make the iPad seem large to some, in reality its size is similar to a classic diary or medium-sized book. A size that fits in any bag or almost any purse. Therefore, there is no single reason why Apple should ever introduce a seven-inch tablet, as some speculations previously suggested.

Going back to the aspect ratio, 4:3 was the absolute standard before the advent of widescreen format. To this day, the 1024×768 resolution (the iPad resolution, by the way) is the default resolution for websites, so the 4:3 ratio is still relevant today. After all, this ratio turned out to be more advantageous than other wide-screen formats for viewing the web.

After all, the ratio 4:3 is also the default format for photos, many books can be seen in this ratio. Since Apple is promoting the iPad as a device for viewing your photos and reading books, among other things, which it ensured with the launch of the iBookstore, the 4:3 aspect ratio makes even more sense. The only area where 4:3 doesn't quite fit is video, where widescreen formats leave you with a wide black bar at the top and bottom.

.