OnePlus phone co-founder Carl Pei had already confirmed that a third phone is on the way, but now we have a date for the grand unveiling: October 29th. A London event for the "OnePlus X" was teased on social media, while a blog post on its Chinese site confirms a companion event in Beijing.

Earlier this month a new OnePlus X handset was spotted in an FCC filing, revealing a 5.5-inch display and an industrial design that looks like an amalgamation of past and present iPhones. A few other, unexciting specs were confirmed in the process; a 1.9GHz processor and support for LTE, Bluetooth, GPS, WiFi and FM radios.

OnePlus X phone

A photo included with the filings shows that the new OnePlus could strongly resemble an iPhone 4 with metal edging, a camera situated on the back corner, and a micro-USB port.

OnePlus One and OnePlus 2 phones have been well-received. For their price, both offer excellent performance and are more than competitive with their respective crop of Android flagships. But the company's invite system and, in the case of the OnePlus Two, some early manufacturing problems have arguably overshadowed both launches. Many fans are still waiting for a OnePlus Two to arrive on their doorstep, so the company will have to tread carefully when it unveils this third, likely mid-range device in a couple of weeks.