8GB internal memory?
In my experience (HTC Desire 500) 8GB internal memory is barely enough to install a handful of apps. On this device 8GB internal leaves just over 1GB for all apps that have to be installed to internal memory (e.g. any app with a widget whether you use it or not), so it's constantly complaining of low memory despite the huge, empty SD card next door.
If you're seriously considering a budget phone, try to find out how much internal memory is available out of the box before committing.