Typically, when an Apple Watch is paired with an iOS device, it automatically syncs and utilizes the Wi-Fi connection of the paired device. This means users don't have to manually pick a Wi-Fi hotspot or input a password on their watch. The whole connection process happens seamlessly and automatically, providing users with a high level of convenience—a hallmark of Apple's user-friendly design. (Here, by adding some background information about Apple's design philosophy, it makes the description more in line with the cultural background and reading habits of English-speaking audiences, who are more familiar with and expect such details about well - known brands.)
