Mobile WiFi devices with power bank functions are becoming more and more popular in today's mobile life. For people who often work, travel, or do not have stable WiFi, such a device undoubtedly provides great convenience. This kind of device is usually small in size, easy to carry, can provide WiFi network connection for mobile phones, tablets and other devices anytime and anywhere, and its charging bank function can charge mobile phones and other devices at the same time, avoiding the dual anxiety of no electricity and no WiFi. In actual use, the signal reception capability, network speed and charging experience of these devices will be affected by a variety of factors, such as geographical location, network environment, device quality and so on. Therefore, when purchasing and using such equipment, it is recommended to consider your actual needs and budget, and carefully understand the performance and functions of the equipment to obtain the best use experience.