Researchers have recently raised concerns about the harmful effects external information storage has on our memory. At the same time, new and emerging mobile technologies have led to the increasing capacity and convenience of external memory aids. To date, price knowledge researchers have not considered this change of consumers’ information storage in the studies they conducted. This publication seeks to close the identified research gap by investigating effects of mobile information storage on consumers’ price knowledge. To do so, this study collects data about consumers’ levels of mobile information storage as well as three price knowledge measures (price recall, price recognition, and deal spotting). Results suggest that the level of mobile information storage influences consumers’ explicit price knowledge negatively while implicit price knowledge remains unaffected. Implications for retailers and further research as well as limitations of the study are discussed.