This article explains the range of an Apple Watch, how far apart an Apple Watch and an iPhone can be without either device dying, what you can do with an Apple Watch that isn't connected to an iPhone, and related topics.
Apple Watch: GPS vs. GPS + Cellular! (Which Should You Buy?)
While this article primarily covers recent Apple Watch models (Series 6 and Series 7), the ideas and concepts discussed here are generally applicable to most modern Watch models.
The Apple Watch is useful in a variety of situations, but it’s best when paired or connected to an iPhone and within range. In this situation, the Watch and iPhone can communicate and exchange data, including notifications, music, health data, and more.
The crucial question for that scenario is: how far apart can the Apple Watch and the iPhone be?
