The document presents information on smartphones, including their definition and history. Key features of smartphones discussed are basic features like data storage and email capability, as well as advanced features such as high-resolution cameras, fingerprint scanners, extended memory and 4G connectivity. Future smartphone features may include flexible screens, built-in projectors, 3D screens and holograms, and endless battery life. Smartphones are used for texting, emailing, social networking, shopping, video calls and gaming. Major smartphone companies are also mentioned. Advantages include benefits to education, improved communication, internet access, and emergency use, while disadvantages comprise privacy/security issues, risk of road accidents, and potential links to brain cancer.