The document presents a design for a wearable device called the X-Band. The X-Band is intended to hold smartphones to alleviate discomfort from holding large phones. It consists of a flexible band that wraps around the user's hand and a base that attaches to the phone. The designer developed prototypes through an iterative process of ideation, research, refinement, and testing with customers. Customer evaluations found the X-Band to be aesthetically pleasing and effective at holding phones.