The trend of the affordable smartphone with high-end specifications is rising quickly, and OnePlus has hopped onto the bandwagon. Yesterday in Beijing, OnePlus launched its flagship device, the OnePlus One, which boasts excellent hardware and design at a mere USD$299, giving the Xiaomi Mi3 a run for its money. The removable 3100mAh battery in the OnePlus One allows for “more than a full day of use”, according to OnePlus. The device is offered in two colours, in a sleek white version (16GB) or an elegant black one (64GB). For China, the phone will officially go on sale on May 28 on JD.com and Yixun, at RMB 1999 (USD$330) for the 16GB version and RMB 2299 (US$368) for the 64GB version.