Samsung delivers on the promise of a foldable phone at its 2018 Developer Conference-- specifically by showing off an "Infinity Flex" technology consisting of a main 7.3-inch and a 4-inch display on the back.

“The foldable display lays the foundation for a new kind of mobile experience," Samsung CEO DJ Koh says. "We are excited to work with developers on this new platform to create new value for our customers. We cannot wait to see where the technology and collaboration takes us.”

Seen in admittedly chunky prototype form, the Infinity Flex device seamlessly shifts from folded to unfolded modes. To do so it runs on One UI, a take on Android Samsung says "delivers a new kind of mobile experience." According to the company, One UI allows apps to transition from the smaller to larger display as the device unfolds, as well as simultaneously run up to 3 apps on the larger display.

After nearly a year of delay, high-end digital cinema camera maker RED confirms a November 2018 release for the Hydrogen One, a smartphone featuring much hyped "four view" (or 4V) holographic technology.

According to the company, 4V technology allows the phone to handle regular 2D video, stereo 3D, augmented reality, virtual reality and mixed reality, all without need for glasses or headsets. Built by a company named leia, the 5.7-inch 2560 x 1440 resolution LCD display carries "Diffractive Lightfield Backlighting" consisting of a "nanostructured light guide plate" beneath the display.

All the jargon sounds impressive, but early reports suggest the effect is more akin to the lenticular 3D found in the Nintendo 3DS as opposed to anything remotely "holographic." As for the rest of the phone, the device offers two sets of dual cameras-- a dual-8MP setup on the front and dual-12MP on the back. Both allow users to snap 3D photos and video, although such media can only be seen on another Hydrogen One handset.

Are gamer customers in want for a premium gaming smartphone? Razer believes so as it unveils the Razer Phone 2, a high-end handset complete with LED lighting and a 5.72-inch UltraMotion IGZO LCD display with a 120Hz refresh rate.

Aesthetically the Razer Phone 2 remains very similar to the original, even if the all-edged design features a revamped aluminium frame, glass back and an illuminated Razer logo on the back acting as a notification LED. The display also promises improvements, since it handles 2560 x 1440 resolution with HDR support, 645 nits maximum brightness and Wide Color Gamut. Audio should also be impressive for a phone, since the stereo speakers carry Dolby Atmos certification.

HMD Global announces a non-throwback Nokia-branded phone-- the Nokia 7.1, a smartphone featuring what the company dubs "PureDisplay" technology offering "high contrast ratio, greater clarity and enhanced colours across all content."

The 5.84-inch 2280 x 1080 display handles HDR10 content, with a dynamic contrast ratio reaching 1000000:1. It even converts SDR content to HDR, via dedicated 16-bit engine, and adjust brightness and contrast according to ambient light conditions. Powering the device is a Qualcomm Snapdragon 636 processor, together with 4GB RAM, 64GB storage (expandable to 400GB via microSD card) and 3060mAh battery.