By the way, previous iPhones with Lightning connection also support Ethernet with an adapter. However, it is possible to achieve higher wired connection speeds, especially since the iPhone 15 Pro supports USB 3. By the way, the highest and most expensive model, the iPhone 15 Pro Max, does not come with a USB 3 supported cable in its box, and it must be purchased separately.
iPhone 15 provides high-speed internet with USB-C Ethernet support
iPhone 15 also supports USB-C Ethernet adapters, which users can use when they need faster download speeds than WiFi. This feature, revealed by curious users, is also clearly stated on Apple's support page...