I buy gionee m5 marathon last week I have faced two major prob.
1st is some app does not work properly.
2nd is last day battery suddenly down not work like 5000mah.
If u want to buy. See more review n pass though dis type of view. Sometimes .camera resolution is one more major problem night view is so poor n not proper resolution vise camera work so I m not impress by gm5 marathon not prefer to all for buy dis types of view.