A smartphone accessory is any additional item designed to enhance the functionality or usability of a smartphone. Common examples include phone cases, screen protectors, and charging cables. These accessories can help protect the device, improve its performance, or add new features. Some accessories also focus on convenience and style, such as wireless earbuds and pop sockets. These items can make using a smartphone more enjoyable and efficient. Overall, smartphone accessories play a significant role in personalizing and optimizing the smartphone experience for users.