A smartphone that could meet the basic needs of listening to music, chatting, reading novels online, and so on, but also needed a long standby time, could consider the following mobile phones: 1Xiaomi Max3: This phone has a larger screen that supports high-definition video playback and multitasking, as well as a longer standby time. 2. Huawei Mat30 Pro: This phone is equipped with a powerful processor and camera system that supports high-quality music and video playback while also having a long battery life. 3. Galaxy S21 Ultra: This phone has a very high screen resolution and a powerful processor that supports high-quality reading and browsing of the web while also having a long battery life. These phones all had excellent performance, high-resolution screens, and excellent battery life. They could meet the basic needs of listening to music, chatting, reading novels online, and had a long standby time. Of course, the specific phone model to choose would depend on personal needs and budget.