The objective of this study was to gain an understanding of the perceived differences between degrees of softness of a touchscreen display and input devices in terms of user task performance and satisfaction. The aim was to provide designers with practical implications for the design of mobile devices and their accessories to ensure a pleasant haptic experience. This study utilized a gaming task instead of a Fitts’ reciprocal tapping task, measured task performance in terms of both task completion time and visual search time, and analyzed RTs for correct trials in an attempt to generalize the findings of the experiment to real-life settings and to lead participants toward a focus on differences in haptic sensation. The block-tapping game, wherein participants needed to perform a visual search for the next numbered block to tap, closely mirrors everyday situations where mobile phone users repeat information-seeking and acquisition behaviors by searching for the target information and selecting it, or by pressing buttons to navigate while using commercialized apps and browsing the Internet. This method was expected to encourage participant engagement in the experimental task and to predict real-world task performance. The sample of participants involved in this experiment included a majority of non-stylus users and a minority of stylus users, who all had a capacitive touchscreen-based smartphone and are comparable to the general population.