Oppo’s new messaging app doesn’t need Wi-Fi or even cellular service to send and receive messages

In addition to showing off the world's first phone with a camera under the screen at MWC 2019 Shanghai, Oppo unveiled an unexpected smartphone feature, especially for a smartphone maker from China. It's called MeshTalk, and as the name hints, it lets you connect to other phones around you. There's no need for Wi-Fi, Bluetooth, or cellular service to get the job done, and it works over distances of up to 3km (1.86 miles).The nifty new technology could help you communicate with others in all sorts