I managed to install the "quite" heavy APK (130MB) and run it....
Looks awesome... Not so many dynamic lights (so maybe we will have to wait for real case scenarios)... Also no objects in movement... Nice reflections and good clipping.
Results are impacted by the number of screenshots I took during the Benchmark and some App updating as well in the meanwhile. FPS are limited by VSync (60Hz).
On the Nexus 4, I ran the benchmark setting High Quality and Force AA 4x on Android Settings.
Good job Epic Games!