A single Engadget comparison of fiber-optic and cable internet finds that fiber is technically superior in speed and reliability, but cable remains the more universally available option. Fiber transmits data as light through glass strands, supporting symmetrical upload and download speeds and avoiding the congestion that cable networks experience during peak hours. Cable, which uses electricity over coaxial lines, is prone to weather interference and shares bandwidth among neighboring households, so evening slowdowns are common.
Availability is the deciding factor for most households. The Fiber Broadband Association reported that over 60% of American homes had access to fiber as of September 2025, while the FCC says 96.9% of Americans can get fixed broadband at 100/20 Mbps—a threshold cable easily meets. Many providers now use hybrid fiber-coaxial networks, bringing fiber to the neighborhood but relying on cable for the final connection, which still allows download speeds of 1 Gbps or more but with lower uploads.
On price, the source notes that fiber is not necessarily more expensive. Google Fiber charges $70/month for 1 Gbps symmetrical service, while Xfinity's hybrid cable plan offers 1 Gbps down for the same $70/month, but with slower uploads and a five-year price lock. Cable plans often bundle TV and phone, and fiber requires a dedicated ONT that most providers include. The article concludes that the best choice depends on local availability and whether upload speed matters for activities like streaming, gaming, or file syncing.