On Nxt, a 4G smartphone with Metal Body, 32 GB . REVIEWS . Galaxy On Nxt smartphone was launched in October 2016. . The Samsung Galaxy On Nxt is powered by 1.6GHz octa-core it comes with 3GB of RAM. . The Samsung Galaxy On Nxt is a dual SIM ( GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM.