EverydayTech Guide
Glossary · Wi-Fi and networking

Wi-Fi extender

A Wi-Fi extender, also called a repeater or booster, picks up your router’s signal and rebroadcasts it to reach further.

Also called: repeater, range extender

What it means for you

It can be a low-cost fix for one weak spot, but because it relays over the air it often reduces speed, and where you place it matters a lot. If you need coverage across the whole home, mesh or a wired access point is usually the better route.

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Definitions are short and general. For model-specific details, check your device maker’s own documentation.