What is Dual band?
Dual band (2.4 GHz + 5 GHz)
Two radio bands: one long-range, one fast.
Short answer
Single-band routers still sold cheap — avoid for anything above 50 Mbps plans.
Dual band when buying a wi-fi router
Two radio bands: one long-range, one fast.
Why it matters: 5 GHz is fast but stops at walls; 2.4 GHz reaches far but is congested and slow.
Look for: Single-band routers still sold cheap — avoid for anything above 50 Mbps plans.
Full Wi-Fi Router buying guide