Direct answer
A single well-positioned router may be sufficient for a smaller, open home with modest device density. Mesh Wi-Fi is useful when one location cannot provide consistent coverage throughout a larger, multilevel, or irregular property. “More powerful” does not automatically mean better because client devices must transmit back to the network and radio-power rules still apply.
Additional mesh nodes can help, but poor placement or excessive overlap can increase interference and roaming problems. In performance-focused homes, multiple wired access points are usually more predictable than purely wireless mesh. Choose from the floor plan, construction, device inventory, outdoor requirements, and a wireless survey rather than the square-footage claim on a box. Google's mesh Wi-Fi overview explains how layout, materials, and node placement influence results.
Sources and technical references
Use the organizations responsible for a product, platform or standard to confirm current specifications and compatibility.
How this answer was prepared
Camelback Smart Homes publishes this FAQ library for homeowners, design professionals, builders and property teams comparing integrated technology. Answers begin with the practical conclusion, then explain the factors that can change it.
Limitations: This is general educational information, not a site-specific design, quote, code determination or compatibility guarantee. Final requirements depend on the property, construction, infrastructure, equipment versions and project goals.