Nokia Lumia. 625.
Owned by Microsoft now.
The phone is an amazing gadget for people stuffed in offices. I am using it since two years from now. Working excellent.
It has a 512 RAM which works pretty good, an 8 GB internal memory with an external slot extendable upto 64 GB, gorilla glass, supports java, wifi, bluetooth, GPS and charging with USB.
Windows is well working but needs taste to use. An affordable phone and a good experience if the persons wills for it.
Indeed a smart phone. 4 stars from me.