The phone's screen size is still not confirmed. On one hand, it is said to be 4.7-inch, while other reports have indicated the HTC M7 may feature a 5-inch display. It won't be a mistake to say that this Android 4.1 device should have a full-HD (S LCD 3) 1920x1080 screen, which is used on the HTC DROID DNA and Butterfly. The device is expected to be powered by Qualcomm's quad-core 1.5 GHz S4 Pro chipset and come with 2GB of RAM.
It has also been rumoured that we might see on-screen buttons (as seen on the Galaxy Nexus and Nexus 4) being implemented on the M7. It is also expected to have a 13-megapixel camera with f/2.0 aperture, and a 2-megapixel front-facing camera. The HTC M7 could pack a 2,300 mAh battery, and capable of Wi-Fi standard 802.11ac, which is said to be thrice as fast as standard 802.11n.
HTC has not been in the best of its financial health recently, with the company's sales headed south for the last one year despite producing devices like the One X and One S. The company would hope the likes of M7 and the recently announced HTC Butterfly aka HTC J Butterfly aka HTC DROID DNA will help in restoring the company to its earlier heights.