To provide an input device having optimal portability and electronic apparatus including the same. The input device includes an input section, a control section, a power supply section, and a support section. The input section has a detection surface, and outputs a detection signal corresponding to a pressing position and a pressing amount on a detection surface. The control section determines the pressing position and the pressing amount based on the detection signal. The power supply section supplies electricity to the input section and the control section. The support section is user wearable, and supports the input section, the control section, and the power supply section.