Were a little dubious about the legitimacy of this one, but it sure is an interesting design. This ZTE nubia goes around the notch/selfie camera issue by doubling up on everything including the screen and the side-mounted fingerprint reader.
No notch and no pop-up mechanism, you can just use the main camera thanks to the screen on the back. And instead of face unlock, there are two fingerprint readers, one on each side.
This ZTE nubia can solve the notch/selfie camera problem without a pop up mechanism
They are recessed, which reminds us of the Xperia XZ1, but they are not buttons (you can see the power button on the left). Theres no room for a reader on the back, of course, thats taken up by the second screen.
We dont know if its a real design, though at least it seems plausible. The side bezels are thick enough to house the fingerprint readers and a back screen is rare but not unseen.
Source 1 (in Chinese) | Source 2