I used lenovo a319 for last 4 months its a best mobile but 512MB is a RAM camera quality is good and display quality is good and inbuilt 4GB memory 8gb ROM.
Its support all the video quality upto 1080p also compare to MX player default video player support 1080p videos with out any buffer and GPU is mali-400mhz so its support high definition games.
Mainly I buy this phone for DOLBY DIGITAL PLUS sound quality option.its a best phone for who search low cost phone.