The iPhone X, pronounced “iPhone 10,” was introduced at Apple’s September 2017 event as a classic “One more thing…” addition to the iPhone 8 and 8 Plus product lineup. According to Apple, the iPhone X represents the biggest technological leap forward since the original iPhone was introduced 10 years ago in 2007, and it sets the path for the next decade of iPhone development.
Apple’s aim with the iPhone X was to create an iPhone that’s all display, blurring the line between physical object and experience. The 5.8-inch front screen melts into a highly polished curved-edge stainless steel band encircling a durable all-glass body available in two pearlescent finishes: Space Gray and Silver. Both feature a black front panel. The edge-to-edge top-to-bottom Super Retina display adopts OLED technology for true-to-life colors, deep blacks, and a million-to-one contrast ratio. It features a 2436 x 1125 resolution and 458 pixels per inch, the highest resolution and pixel density ever introduced in an iPhone. It supports HDR, wide color, 3D Touch, and True Tone for adjusting the white balance of the display to match the ambient lighting.
The glass body of the device is IP67 water and dust resistant and it enables support for inductive wireless charging for the first time. The iPhone X adopts the Qi wireless standard and can charge through the glass back using any Qi-certified charging accessory. Apple is making an “AirPower” accessory to charge iPhone X, Apple Watch Series 3, and AirPods simultaneously.
With an edge-to-edge design, there is no room for a Home button, so the iPhone X adopts a new user experience. A swipe up at the bottom of the screen brings up the Home screen, while a swipe and a hold brings up App Switcher. There’s a Tap to Wake feature for looking at notifications, the side button can be pressed and held to activate Siri, and the Control Center is accessed by swiping downwards from the top status bar. With efficiency improvements enabled by the A11 Bionic chip, the iPhone X offers two hours more battery life than the iPhone 7, but the battery falls short of the battery in the iPhone 7 Plus.
The same 7-megapixel TrueDepth camera that powers Face ID enables a new feature called Animoji. Animoji are 3D emoji able to mimic your facial expressions. The TrueDepth camera tracks more than 50 facial muscle movements and translates them to the Animoji, which can be used in the Messages app.
In the back, the iPhone X features a vertical 12-megapixel dual-lens camera arrangement with an f1.8 wide angle lens and an f/2.4 aperture telephoto lens. Both lenses support optical image stabilization and have improvements like a new color filter, deeper pixels, better low light zoom, and improved video stabilization. Between the cameras, there’s a new quad-LED True Tone flash.