Thank you for reaching out to the Samsung community! We would like to inform you that the difference in Galaxy C7 pro and C9 pro is its processor speed, RAM and screen size. The Galaxy C7 pro and C9 pro RAM size is 4GB, 6GB; Display size 14.43cm, 15.20cm and Processor speed 2.2GHz, 1.95GHz+1.4GHz respectively. For more information kindly visit the below link: https://www.samsung.com/in/smartphones/galaxy-c7-pro-c710f/?bvstate=pg:2/ct:r&cid=in_ppc_google-hhp-estore-dsa-20171218 https://www.samsung.com/in/smartphones/galaxy-c9-pro-c900f/?bvstate=pg:4/ct:r&cid=in_ppc_google-hhp-estore-dsa-20171218
Be sure to hit ♡ when you find an answer that works for you. For further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
