Phones are like smart kids who know when to switch between two different ways of getting a message across, one is like talking in the same room (Wi-Fi), and the other is like sending letters through the mail (mobile data). If the Wi-Fi becomes slow or breaks, your phone checks if the mobile network is faster and switches over automatically. It's like picking up a new pencil when yours runs out of ink.
Examples
- A phone switches from Wi-Fi at home to mobile data when you walk out of the house.
- Your phone changes networks so you don’t lose your connection while watching a movie on the bus.
- When you’re on a Zoom call, your phone can switch between Wi-Fi and mobile networks without you noticing.
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See also
- Why Do Smartphones Use So Much Battery When You're on Wi-Fi?
- How Do Phones Know When You're Talking to Someone Else?
- How Do Phones Know When to Switch Between Wi-Fi and Mobile Data?
- How Can a Tiny Chip Hold All Your Data?
- How Do Smartphones Know When to Switch from Wi-Fi to Mobile Data?