The Nubia X is an Android

smartphone A smartphone is a mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multi ...

which was launched on 31 October 2018. Given the tendency in the late 2010s toward bezelless displays, instead of trimming the display with a notch or hole for housing a front camera, it opts to use two screens (on both sides of the phone). Selfies and videocalls are made with the main camera and the rear display as viewfinder.

References

Android (operating system) devices Discontinued flagship smartphones Mobile phones introduced in 2018 Mobile phones with multiple rear cameras Mobile phones with 4K video recording {{mobile-phone-stub