Here is some knowledge for iphone X Used AAA original quality as below.
iPhone X 5.8 ″ QHD screen, 12 × 2 / 7MP camera, iOS 11, 4G, 3D touch
Nothing but screen. This has always been the vision of the iPhone. A screen that is so immersive that it almost disappears when in use. With intelligence that lists every small print, word or even look. Now the iPhone X makes the vision a reality. Say hello to the future. On the iPhone X, the screen is everything - a brand new 5.8-inch Super Retina display that captures and keeps your attention. With advanced technology and new techniques, the screen is placed in a soft curve over the edge, all the way to the rounded corners. The first OLED display good enough for the iPhone, with lifelike, strong colors including all black, high brightness and a 1,000,000: 1 contrast ratio. A tiny chamber contains some of the most sophisticated technology Apple has developed - including the cameras and sensors used for Face ID.
The strongest glass any smartphone has had, both front and back. Special steel developed by Apple. Wireless charging. Water and dust resistant. With simple, intuitive movements, you have complete control over everything. Instead of pressing a button, you return to the Home screen with a swipe.
Now you can use your face as a password. Face ID is a safe new way to unlock and confirm. Face ID works with the TrueDepth camera and is easy to set up. The camera emits and analyzes more than 30,000 invisible points, which are used to create an accurate digital model of your face.
Take great selfies with yourself in focus for a blurred background. Beta: Portrait Lighting is a new feature in Portrait mode. With it, you can get into professional studio effects. The TrueDepth camera analyzes more than 50 different muscle movements to recreate your facial expressions in 12 Animoji. Unleash your inner panda, pig or robot.
Larger and faster 12 MP sensor. A new color filter. Deeper pixels. And a new telephoto camera with OIS. Both rear cameras have image stabilization and fast optics, so you get great photos and videos even in low light. The wide-angle lens and telephoto lens provide the iPhone X camera with optical zoom, as well as ten times the digital zoom for images and six times the digital zoom for video.
We introduce the A11 Bionic. The smartest and most powerful chip in a smartphone ever, with neural architecture capable of carrying up to 600 billion instructions per second. The four efficiency cores of the new processor are up to 70 percent faster than the A10 Fusion. And the two performance cores are up to 25 percent faster. Second-generation performance controls and a specially crafted battery that lasts up to two hours longer between each charge than the iPhone 7.
Without the need for charging cables, the iPhone X is created for the wireless future. Charge it to wireless charging stations found at hotels, cafes and airports worldwide.
* USED AAA quality means the phone is not new, but it has been evaluated by technicians, just with slight scratchs so that the device is considered "new". The device is completely back to factory settings. So every used AAA iphone should be ready for a new life.