The Oppo Watch was the Chinese phone maker's latest announcement into the wearable space and according to a set of patent renders submitted to the intellectual property office of China, Oppo might be announced another wearable very soon. It's not quite a fully featured smartwatch like the Oppo Watch, but as per these renders, Oppo appears to be planning to release a new fitness band. The renders in question show a long, pebble-shaped device with a small display on top, and charging pins and sensor cut-outs at the bottom, likely denoting a heart rate sensor. Patent...