The Oppo Bubble is a smart second screen for your phone, one that can be attached and detached at will, connects wirelessly, and serves as either a selfie screen or a wireless camera remote. It's the best version of this idea I've used yet, but also a frustrating reminder that it could be even better if only Oppo and other Android OEMs would get on board with Qi2.
The Bubble is a bit like a smaller - much, much smaller - version of Insta360's Snap or the Dockcase Selfix phone case. It's a tiny puck, just 7mm thick and 27.5g, with a 1.73-inch circular OLED touchscreen. It has its own 550mAh battery - though Oppo won't say how long to expect …