This is the 18262nd most frequent Korean word.
스마트폰으로만
"Only with a smartphone."
The phrase '스마트폰으로만' emphasizes that the action is performed exclusively using a smartphone.
스마트폰으로만 사진을 찍는다.
I only take photos with a smartphone.
The phrase '스마트폰으로만' denotes that the communication was done solely using a smartphone as the means.
스마트폰으로만 친구들과 연락했다.
I only contacted friends through a smartphone.
The phrase '스마트폰으로만' shows exclusivity in using a smartphone as the device for accessing the internet.