Worse phone tested:
-bad quality for audio calling, distorted
-extremely bad camera for low light shot
-i miss some calls when telephone refuse to ring
-occasionally i have lost the gsm signal
-display with low view angle, TFT not IPS!
-1550 mAh battery with a reasonable long life, 12 hours tested and used 40%.
-good WI-FI connection but chrome, preinstalled, works slow...
-GPS - not tested
-On last Antutu obtained a 12500 score.
I've returned the phone in 24 hours. Bad chinese mobile, not reccomended!
I have been using this phone for more than a month and I find it very useful for calling and browsing. I have Galaxy S5 which I love for games and apps but this one I usually bring in the gym or when cycling as it is much cheaper and I am not afraid to break it - already dropped it few times and still working :).