In 2010, Apple changed the way we think about mobile displays, with the iPhone 4 getting a unique Retina display. Six years later, the Cupertinians presented another completely new development for displays – True Tone. How do they differ from each other – and what should we, ordinary users, choose?
What is Retina Display?
Retina (retina) – Apple’s marketing term, translated from English means “retina”. It means the following: the density of dots-pixels on the screen is so high that the human eye is unable to distinguish individual pixels in the picture. At the same time, under the name “Retina” specific characteristics are not hidden – for example, a certain number of pixels or a precise display resolution.
The first smartphone with a Retina display was the iPhone 4. It received a resolution of 960 × 640 pixels, which was more than enough for a 3.5-inch display – because there were 326 pixels per inch (PPI, pixel per inch).
By the way, in fact, Apple displays were not designed based on PPI, but based on the pixel-per-degree (PPD, pixel per degree) parameter. It better determines the ability of the human eye to distinguish details at a certain distance. When creating this indicator, the screen resolution and viewing angle are taken into account. The iPhone 4 had a PPD of 57.
When the first MacBook Pro with Retina display was released in 2012, it received a record resolution of 2,880 x 1,800 pixels on a 15.4-inch screen. The PPI was even lower than the iPhone 4 (220 versus 326), but the PPD was higher at 79.
Side-by-side comparison of the resolution of the iPhone 3Gs (regular display) and iPhone 4s (retina display):
Almost all Apple devices today have a Retina display. This does not tell the consumer exactly how many pixels per inch (or degree) he will receive – after all, the Apple Watch screen is very different from the iMac monitor. But it doesn’t matter, because Retina means you can’t see the pixels on the screen, i.e. you will enjoy high quality pictures under any circumstances. How many people need more?
Learn more about technology
♥ BY TOPIC: How does the display of a TV, iPhone (IPS, OLED, LED, etc.) work: shooting with a camera at a frequency of 380,000 frames per second.
What is True Tone Display?
Unlike terms like HD, 4K, Retina, etc., “True Tone” has nothing to do with the number of pixels on the screen. His area of responsibility is colors and contrast… The main challenge is to make sure that perfect white always remains perfect white, in any ambient light. And the more “white” the display is, the more contrast it will be.
Have you noticed that the light is slightly reddish in the morning and yellowish in the middle of the day? Not? It is logical – after all, our brain specifically “filters” the shades.
Modern screens reflect light well, but our brains do not notice this and still tries to filter what is not there. As a result, our perception of colors on the screen suffers. True Tone compensates for this by adding warm tones to the display. The brain is happy to filter the picture – and we get “real” white, “like a sheet of A4 paper.”
To activate True Tone technology, open the Settings app, go to the section Screen and brightness and set the corresponding switch to position On…
In addition, the function can be enabled from the Control Center:
We talked about True Tone technology in more detail in this article.
♥ BY TOPIC: Which TV is the best for home in 2020: 11 practical tips.
Are these technologies unique to Apple?
Absolutely not. Other manufacturers, of course, do not use the name “Retina display” – but they sell gadgets with even higher resolutions. Today, you won’t be surprised by a 13-inch Windows laptop or 5.5-inch 4K smartphone. The same can be said about True Tone – if with Retina Apple was really ahead of its time, then with True Tone it did not even become the first on the market. For example, the line of top-end Samsung Galaxy smartphones has been using adaptive displays with the same capabilities for several years.
♥ BY TOPIC: How to save a website page in Safari on iPhone (iPad) for reading without the Internet.
Do I have to buy devices with Retina display and True Tone?
There is no such need. True Tone technology will leave indifferent (that is, its work will simply not be noticed) by most people, and high quality of the picture in the spirit of “Retina” will be in any device with Full HD resolution and higher (and HD is enough for a smartphone up to 5 inches).
In terms of manufacturers and platforms, Apple currently only sells Retina devices, although 2K, 4K, or even 5K clarity, to be honest, is only needed by photo and video professionals.
In the world of Windows and Android, there is much more freedom and choice. But even for the most economical, we do not recommend purchasing smartphones with a resolution below HD, and laptops with a resolution below Full HD, otherwise the picture quality may disappoint you and you will waste your money.