When it comes to umbrellas, everyone will definitely not be unfamiliar. Every rainy season, there are more people on the street than usual holding various umbrellas, from small mini models to grand high-end models, all filled with various colors and shapes. And the hottest umbrella this year is even more eye-catching. In addition to providing shelter from rain, it can also sense temperature, allowing people to feel warmth and warmth while also preventing rain. Today, we will talk about these umbrellas, calculate their advantages and disadvantages, and see if they are worth buying.