This mobile has 4 gb ram and 64 rom and its screen resolution is also so good . and this mobile has coolest feature ever. you can buy it from the htc store or you can purchase it via online. online shopping store like amazon ebay flipkart. as well as you want. this mobile has 5.7 inch quad hd display and its front camera is not so good but its rear camera is very good. rear camera is 12 MP and front camera is 16 MP. this mobile has a 3000 mah battery