OnePlus has unveiled a new concept device, the simply named OnePlus 8T Concept. Based on the existing OnePlus 8T, this new concept device lets the company showcase some of the technologies that they have been working on. The OnePlus 8T Concept features a color-changing film under the back glass. The film contains metal oxide and can change its colors based on different applied voltages by changing the valence state of the metal ions. The film can change its color from silver to a dark blue and back. The back glass is etched in a way to mimic the shape of the Pamukkale hot spring...
Source: https://www.gsmarena.com/oneplus_8t_concept_device_features_color_changing_film_and_mmwave_radar-news-46840.php
