Have you ever thought which the most perfect size for a smartphone screen is? Strategy Analytics have not only thought about this, but tried to find it out, too. According to their latest research, 90 percent of people surveyed (from the UK and the US) prefer smartphones with 4-4.5-inch touchscreens.

“Almost 90 percent of existing smartphone owners surveyed chose a prototype smartphone with a display larger than their current device. This trend is driven by increased mobile web browsing capability, as well as engaging video and gaming experiences”, said Paul Brown, a Director in the Strategy Analytics User Experience Practice.

The survey also showed that women prefer a bit smaller screens than men, but still a phone with a 4-inch display is the smallest they’d agree to buy. On the other hand, despite of their genders, Android users always prefer bigger screens than iOS users, and the reason is obvious: the biggest iPhone display is still 3.5 inches on the diagonal, and Apple’s faithful fans are used to that size; meanwhile, a number of manufacturers working with Android OS offer 4.3-4.7-inch smartphones, do Android users can’t imagine themselves using smaller devices.

On the other hand, according to the same research, smartphone users want their phones to be thin and light – nobody will buy a bulky and heavy device, even if it has a good big screen.

So people prefer bigger and lighter phones, and most manufacturers are making their latest phones according to this trend: HTC’s One X, LG’s Optimus 4X HD, Sony’s Xperia S, the upcoming Samsung Galaxy S3 and many other new phones come with 4.3-4.7-inch screens; Sony Xperia S deals appeared only a couple of weeks ago, but the phone is already very popular, and this makes me think the other Android phones with similar screens will sell really well, too.

Now the question is – will Apple make its new iPhone 5 with a bigger screen, too? If yes, it’ll no doubt become a best-seller.

By the way, what’s the perfect touchscreen size for you?