In the current study, several interesting findings related to user satisfaction were revealed. The findings related to finger fatigue show that tapping the surface of the display with the fingertip caused as much finger fatigue as did tapping with the acrylic-tipped stylus, while the rubber-tipped stylus caused less finger fatigue than did the other two input devices. Because of the direct contact with the surface, it may be inevitable that the material’s resistance or compliance is felt through the fingertip. The acrylic-tipped stylus allows the user to feel the repulsion force from the surface, thereby leading to finger fatigue. Finger fatigue was negatively correlated with the other measures, in particular pleasantness and subjective satisfaction. Accordingly, adding softness to the tips of input devices should increase user satisfaction. Furthermore, the amount of finger fatigue felt by users will be closely linked to the strength and duration of the applied force, because they exert pressure on an object to explore the hardness and softness of the materials (Klatzky et al., 1987). In this respect, two important issues should be investigated further: (1) the optimal degree of softness or hardness that offers users comfortable and pleasant feelings of touch and (2) the different amounts of force that users exert on the surface of a touchscreen according to the degree of softness. It is worthwhile to conduct further research concerning the magnitude estimation between the degree of elasticity of the display and its perceived intensity, or strength of the pressure on it. In the current study, I found an effect of the interaction between the softness of the output display and the input device on the perceived pleasantness and degree of elasticity. This finding highlights the importance of considering the touchscreen together with the input device when designing the two, in order to meet user demand for a pleasant and elastic touch. With respect to the degree of elasticity, the combination of the glass touchscreen and the rubber-tipped stylus led to a significantly higher degree of perceived elasticity than the combination of the soft touchscreen and the rubber-tipped stylus. In fact, the combination of the elastic display and the rubber-tipped stylus is more likely to generate high friction during tapping. Therefore, the effect of contact friction should be considered more carefully.