This chapter explores how protesters use the affordances of smartphone technology to overcome marginalization in the context of semi-authoritarian repression. Through an analysis of participatory activism on the ‘Ruto Must Go’ protest in London, UK, the chapter shows how smartphones, through its cameras, plays a crucial role in shaping collective memory, amplifying marginalized voices, and challenging hegemonic narratives. By gathering visual evidence through their smartphones, the protesters pushed the boundaries of sousveillance. They inverted traditional power structures, which allowed them to hold governments accountable. Consequently, impact of smartphone cameras and its footage on public opinion suggests political leaders can no longer afford to ignore transnational activism, as it has the potential to shape domestic debates and electoral outcomes. In addition, through what the chapter describes as collective and participatory recording, it highlights how the author’s act of recording the protest with his smartphone serves simultaneously as a research method and an activist practice. This dual role underscores how participatory recording shapes contemporary activism, democratizes the circulation of information, and enhances the visibility of digital activism and protest movements.