Wired vs Wireless: When to Use Ethernet
Compare Ethernet and Wi-Fi for home networking. Learn when wired connections are worth the effort and how to run cables effectively.
Ethernet vs Wi-Fi: A Fair Comparison
Both Ethernet and Wi-Fi have their place in a home network. The right choice depends on the device, its location, and what you use it for.
| Factor | Ethernet | Wi-Fi |
|---|---|---|
| Speed | 1-10 Gbps (consistent) | 100-2400 Mbps (variable) |
| Latency | <1 ms | 2-15 ms |
| Reliability | Excellent (no interference) | Good (affected by walls, distance) |
| Convenience | Requires cable runs | Wireless, any room |
| Security | Physical access needed | Vulnerable to wireless attacks |
When Ethernet Is Worth It
Wired connections should be the default for any device that stays in one place:
- Desktop computers — No reason to use Wi-Fi when the device never moves.
- Gaming consoles — Lower latency and zero packet loss make a noticeable difference in online games.
- Smart TVs and streaming devices — 4K streaming is more reliable over Ethernet, especially when multiple devices share Wi-Fi.
- NAS and file servers — Transferring large files locally benefits enormously from Gigabit or 2.5 Gigabit Ethernet.
- Work-from-home setups — Video calls and VPN connections are more stable on wired connections.
Ethernet Cable Categories
| Category | Max Speed | Max Length | Use Case |
|---|---|---|---|
| Cat 5e | 1 Gbps | 100 m | Legacy, still functional |
| Cat 6 | 1 Gbps (10 Gbps at 55 m) | 100 m | Recommended standard |
| Cat 6a | 10 Gbps | 100 m | Future-proof choice |
| Cat 7 | 10 Gbps | 100 m | Shielded, data centers |
| Cat 8 | 25-40 Gbps | 30 m | Short runs, high speed |
For home use, Cat 6 is the sweet spot — affordable, widely available, and supports Gigabit speeds at full 100-meter runs. If you are wiring a new home, spend the extra dollar per foot on Cat 6a for 10 Gbps future-proofing.
Practical Cable Running Tips
Running Ethernet through your home does not require professional help:
- Use existing pathways — Run cables alongside coax, through HVAC ducts (use plenum-rated cable), or along baseboards with cable raceways.
- Flat cables for under doors — Flat Ethernet cables can pass under doors and carpets without damage.
- Keystone jacks — Install wall plates with keystone jacks for a clean, professional look. Terminate cables with a punch-down tool.
- Central location — Run all cables to a central closet or shelf where your router and switch live. A small 8-port Gigabit switch costs under $25.
When Wi-Fi Is the Better Choice
Wi-Fi makes sense for:
- Mobile devices — Phones and tablets that move around the house.
- IoT devices — Smart bulbs, sensors, and speakers that are hard to wire.
- Temporary setups — Guest rooms, outdoor areas, or rental properties.
The Hybrid Approach
The best home networks combine both. Wire your stationary devices for speed and reliability, and use Wi-Fi for mobile devices. A Wi-Fi mesh system ensures full coverage while your critical devices enjoy dedicated wired bandwidth.