This is relatively easy to understand. Middle-aged and elderly people use Huawei because Huawei promotes it under the banner of patriotism. Middle-aged and elderly people have more patriotic feelings. Xiaomi is cheaper and more cost-effective. High, middle-aged and elderly people are more economical. Girls use Apple more often because Apple has a good-looking appearance at the beginning, and most girls have smaller hands. The previous Apple's 4-inch screen was just right for one hand to hold. Young people like Oppovivo because its appearance has always been beautiful, it looks good when displayed, and its announcements are relatively well-known.