At a meeting with scientists and academics, Putin made the admission in response to a speech by Mikhail Kovalchuk, head of the Kurchatov nuclear research institute, while travelling in Siberia ahead of March 18 polls in which he is seeking a fourth term in the Kremlin.
"You said that everyone has smartphones. But I don't have a smartphone," Putin said, to laughter in the audience. He responded to a comment from Kovalchuk that "everyone has a smartphone in their pocket."
The 65-year-old grandfather has previously admitted to technological cluelessness -- saying in 2005 that he did not have a mobile phone at all -- and voiced fears over content available online.
Last year while meeting schoolchildren, Putin told them he barely uses the internet, after being asked if he looked at Instagram or other social networks in his spare moments.
"I personally practically don't use this," Putin said of the internet, adding that members of his staff do get online.