Imagine your smartphone is like a radio that can talk to many different stations. These stations are called cell towers. When you move from one place to another, your phone talks to the next station in line, it's kind of like switching radio stations as you drive through town. This way, your phone stays connected no matter where you go.
Examples
- You can watch videos on your phone while driving between towns.
- Even when you're underwater, your phone may still connect if it’s close enough to a tower.
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See also
- What is GSM?
- How Do Smartphones Know When You're Looking at the Screen?
- How do smartphone touchscreens detect your fingers?
- How Do Phones Know When You're Looking at Them?
- How does a smartphone touch screen detect your finger movements?