T he fact that mobile technologies can be used almost anywhere makes them seem almost placeless, as if they were independent from their surrounding environments. Theorists, designers, and researchers have long heralded the possibilities of mobile media to circumvent spatial constraints (see Campbell, 2019;McLuhan, 1964). Yet, over time it has become clear that this projection of mobile capabilities is overstated (Frith, 2015;Humphreys et al., 2018). In this chapter, we review how the use of mobile media is deeply embedded in and shaped by the spatial contexts that we inhabit in our daily lives. Consequently, our understanding of mobile technologies, including their psychological effects, must be grounded in an understanding of daily mobility: how people move through everyday spaces.To illustrate, consider an individual, Jerry, who plays the popular (as of 2020) mobile game Candy Crush. Jerry's total usage of Candy Crush can be considered an aggregation of playing the game in a variety of spatial