Although smartphones have become normalised in people's everyday behaviours, they remain under-exploited from a language learning perspective. This paper describes a study in an Irish university which explored the nature and extent of language learners' existing use of smartphones for informal learning purposes through a survey, a case study, and a group interview. The results showed that firstly, smartphones played only a limited and tangential role in their language learning, and secondly, that learners had narrow perceptions of what 'actual, proper study' entails, demonstrated by their overwhelming preference for more traditional language learning resources and practices. The paper finishes by making suggestions regarding how smartphones can be integrated into the language classroom, at both third and second level, to help broaden learner perceptions of what language study is, and consequently, allow smartphones to play a more significant role in their learning practices. [For the complete volume, "CALL and Professionalisation: Short Papers from EUROCALL 2021 (29th, Online, August 26-27, 2021)," see ED616972.]