Samsung brought its 10 nanometer LPDDR4 6GB DRAM chip to a mobile conference in China yesterday. While that's impressive, the company didn't elaborate on where it plans to put all that memory — Samsung's old 20nm 6GB chip for mobile didn't get much use. Most phones max out at 4GB of RAM, although Chinese companies like Vivo and LeEco have created phones with 6GB of RAM. Samsung's chip uses 10nm, which means it won't suck up as much battery life. Woo more memory and a phone that stays alive.