China’s Nubia today launched its new flagship called the Nubia X, the first smartphone that has a main LCD screen on the front and a second, OLED display on the back, removing the entire need for a front-facing camera.

With its full-sized rear screen, you can simply flip the phone around to its back to take your selfie with the main camera. This LCD screen
totally disappears when the switched off.

The main display is a 6.26-inch LCD with a resolution of 2,280 x 1,080 (19:9, 93.6% screen-to-body ratio, 93% NTSC color gamut), while the rear panel is an OLED screen with a resolution of 1,520 x 720 (19:9, 100% NTSC color gamut, 100,000:1 contrast). The OLED has been manudactured by China's BOE. Whan enabled, this Always On Display (AOD) keeps a limited portion of the screen on during sleep mode. An AOD shows the time, date, and battery status by default, but can be configured to also show various types of notifications and screensavers. It can be also used as a touch panel even when it is not enabled, to allow users to play games on the smartphone using their fingers on the rear side of the device. The rear display is covered by a curved surface 3D glass.

The smarphone's weight is 181g and it is just 8.4 mm thick, making it the industry's In addition, weight 181 g, thickness and 8.4 mm, have met the industry lightest and thinnest full-screen smartphone.

Nubia says that the smartphone has passed various drop tests test from a height of 120cm.

Another interesting feature of the device is that is has fingerprint sensors in both sides. The fingerprint sensors achieve an 99.98% identification rate and unlock the device in just 0.1 seconds. But besides unlocking the device, the fingerprint sensors can be assigned for other operations such as home or back buttons.

Using the AI-powered "ET Switch" technology, the smartphone automatically determines which screen you are about to use. Buy still, you can manually switch to the screen of your choice.

The battery powering this screen sandwich is rated at 3,800mAh, there’ll be a choice of 6GB or 8GB of RAM, and the ever-present Snapdragon 845 will be at the heart of the device. Alas, the nubia UI 6.0.2 OS that will ship with the X is based on the older Android 8.1 Oreo instead of the freshest Android 9 Pie.

The device uses only two cameras (16MP f/1.8 and 24MP f/1.7) and a flash.

Nubia also claims that this camera's portrait mode uses AI tricks to analyze the subject's ethnicity, facial features, age, skin tone and other characteristics to set the right kind of beautification and bokeh. Similarly, the AI software has also been trained with over 4,000 scenes to automatically optimze images accordingly.

Other features include a IEEE 802.11ac wireless LAN, Bluetooth 5.0, USB Type-C, along with the usual sensors (proximity, ambient light, gyroscope, acceleration, etc.).

The Nubia X is sold in China lack North American LTE bands. The usit starts from 3,299 yuan or about $470 for the 6GB RAM + 64GB storage model, and maxes out at 4,299 yuan or about $620 for the 8GB RAM + 256GB storage + blue light glass filter version.