The 21st century is a century of changes in technology as well as innovation. Smartphones today have a lot of useful features for users, it is no exaggeration to say that it is no different from a brain with all knowledge. Humanity has discovered that AI even helps people do things much faster than the human brain. I love smartphones very much and when it came out, many people even exchanged their daily meals and clothes just to buy a phone. In phone accessories, there are a lot of advanced equipment and are upgraded day by day, currently in Vietnam there are many shops opening to serve the purpose of repairing as well as buying and selling, personally, Cellphone S is currently the most prestigious monopoly company in Vietnam. Recently launched all kinds of iPhone 14(bạn có thể nói những dòng điện thoại khác nữa nhé) a new step in the modern technology industry.