Huawei's upcoming Mate 10 smartphone has leaked yet again. This time, however, the leak comes in the form a promotion poster that has been spotted in a Chinese store, revealing some of the key specifications for the device. As you can see, the image isn't exactly clear, but does give away the following information: 6.2-inch display, 2160 x 1080 pixel screen resolution, 20MP+23MP dual rear camera setup, and 4,000mAh battery (something which the company recently teased ). The Chinese company has already confirmed that the Mate 10 will be powered by the Kirin 970 SoC. The Mate 10 series consists of three or four variants, and all of them will be made official on October 16.