A new high-end smartphone from ZTE has been spotted on GFXBench. It is named ZTE A2017 and it has:
a Snapdragon 820 SoC
a 5.5-inch (1440 x 2560 pixel resolution) display
4GB RAM
64 GB internal memory
21 MP rear camera
8 MP front shooter
Android 6.0 Marshmallow preinstalled.