Guides · Explainer
Router vs. modem: what's the difference?
One box talks to your provider, the other runs your home network. What each does — and when buying your own pays off.
Jean Gilles · Founder & editor
Published May 22, 2026 · Updated Jul 16, 2026 · 3 min read
A separate modem and router side by side. Click to edit this caption.
The short answer
A modem connects your home to your ISP; a router creates your Wi-Fi network and shares that connection across your devices. You need both — either as two separate boxes or combined into one 'gateway.' Buying your own usually beats years of ISP rental fees.
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Ready to upgrade the hardware? See the best Wi-Fi routers for a big house.
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Founder & editor
Jean founded ShopHighSpeed after trying to find one straight answer about business internet in his own town. He has been a Comcast and Verizon Fios customer, and builds the site’s rankings from the availability data providers file with the FCC rather than from provider marketing.