It is known that skin deformations on the side of finger contribute to force perception in the fingertip. This study focuses on this knowledge and proposes a method to present force sensation by transcutaneous electrical stimulation via the side of the finger. The compactness of the proposed method makes it suitable for mounting on the fingertip. Moreover, it does not interfere with the tactile sensation of the fingertip, making it easy to combine with other methods such as vibration presentation. Our system is composed of electrodes on the lateral side of fingertip and dorsal surface of middle finger joint. Using this system, we examined the effect of electrical stimulation to the perception of weight during grasping. The results revealed a tendency to perceive the weight of the grasped object to be larger with the stimulation.