Traveling With One Smartphone

Traveling With One Smartphone
2017–ongoing
Performance, video, installation
This is a performance art piece that Yamaguchi has been practicing since 2017, involving domestic and international travel with only a smartphone (and a passport for overseas trips). The work challenges the concept of “national borders,” which often present a significant psychological barrier for Japanese people raised on an island nation, by crossing them with the same ease as visiting a local cafe.
In this minimalist journey, where basic travel essentials such as clothing, cash, and chargers are completely abandoned, modern technology and the kindness of strangers become indispensable. Yamaguchi intentionally places himself in this “vulnerable” state, surrendering to unpredictable situations and responding to them spontaneously.


Traveling With One Smartphone
From Tokyo to Shanghai, China, November 2017


Traveling With One Smartphone
From Tokyo to California, US, November 2017


Traveling With One Smartphone
From California to Tijuana, Mexico, December 2017

Traveling With One Smartphone
Inkjet print, drawing on World Map, artist’s own passport, 2017–
Solo Exhibition ‘Swept Along, but Not Swept Away’ / CourtyardHIROO Gallery (Tokyo), 2024
His passport bears the stamp from November 29, 2017, when he successfully entered the United States carrying nothing but a smartphone.



Traveling With One Smartphone
WORKSHOP A collaboration with FUTURE GATEWAY, 2022, KDDI research atelier
The ultimate goal of this project is to implement in society the ability to easily transcend national borders, and from 2022, the project is conducting joint research with KDDI Research, Inc. on people’s mobility. This research has resulted in later works such as Swept Along, but Not Swept Away (2024- ongoing).