I Presnelly use Gionee A1 I have not get any problem by this device really a amezing device its feture really memerable it bettry is very good as well as other gionee devices its metal body look device diffrent from other really a use of money Gionne A1 also a camera quility is very good I really happy with is gionne device and gionne is not a vest brand its is highly brand so we trust on this brand really Gionne A1 is a SELFISTAN.