I use the Wiko Cink Peax Android GPS Smartphone Black from about 35 days to put my belt and even for 2 days twisted in all directions in my attic (attic) that I isolate and I can not fault it especially for the price . this is the first smartphone that I use but it has nothing to envy to the Samsung PC 7510 issue operating speed tablet connects very quickly in my car, to wifi. The battery takes + - 1.5 days by turning off the wifi or Bluetooth (which are easily activated) when no access or util.