One of the big changes in the OnePlus 6 is a glass back instead of the metal that we have become used to. The glass back also allows for better reception for ultra-fast gigabit data speeds.
But despite having a glass back, the OnePlus 6 doesn't support wireless charging. You may wonder why and the here's what OnePlus has to say about it: "We don't really feel the need to add wireless charging. We're not going to add a feature just for the sake of it." The company said having to buy a wireless charger is a barrier for users. It also pointed to the increased hardware complexity, especially given how well Dash Charge works.