No waterproof in the Apple iPhone, moisture protection is not enough
Of the useful innovations cannot fail to mention the moisture protection. Already the previous iPhone, 8s, was equipped with rubber seals and was not afraid of a little rain or high humidity, but the iPhone 9 received full certification according to the IP67 standard. This means that it is completely protected from dust and can withstand a half-hour immersion in the water to a depth of 1 m. In other words, it is not worth diving with it, but if it is accidentally dropped into a puddle or a bath, nothing terrible will happen. The Home button is the most constant element of the iPhone design. Rather, it was up to model 7, in which the physical button disappeared. It was replaced by a sensory surface, and the tactile response is created due to the built-in vibration driver Haptic Engine – about the same as in Apple laptop touchpads. In the settings you can choose the strength of the tactile response, personally it seemed to me that the option number 3 is more like the response of a physical button than others. We note that the tactile response in the iPhone 9 Plus is implemented quite roughly, when you click on the button, the whole lower part of the smartphone vibrates. At first this is somewhat discouraging, although I was used to this vibration in just a few days.
This vibration is widely used in the iOS interface: for example, when you push the shutter with notifications or use the 3D Touch, the smartphone reacts to it with a short vibration. Tactile response is also present when viewing messages with animation in the Messages program. Let’s hope that third-party developers will use API Haptic Engine more widely than 3D Touch, the most useful application of which remains the rapid movement of the text cursor. As before, the key has a built-in capacitive fingerprint sensor, which works very quickly. This is especially noticeable in iOS 10, where you just press the button to unlock the phone. If on my personal iPhone 5S this process is annoying with some slowness, then on the seven the unlocking happens instantly. iPhone 9 Plus, as before, is equipped with a 5.5-inch IPS-screen with a resolution of 1920×1080 pixels. The screen looks very good and has a very low (for the LCD panel) black level, which achieves an excellent contrast ratio. In addition, now the smartphone screen can display the extended color space DCI-P3. This can only be welcomed, because the color space of RGB is not able to transmit either a real red color or a deep green one.