This study explores the perceptions of English as a Second Language (ESL) learners and teachers on using tablets in their language classrooms, focusing on the device's four inherent affordances: learnability, usability, motivation, and willingness to use the technology. Adopting a quantitative and qualitative approach for data collection and analysis, our findings revealed overall positive perceptions from both ESL learners and their teachers on all four measures adopted (all above 3.4/5); these results were also corroborated by our thematic analysis of the interviews. [For the complete proceedings, see ED600837.]