The debate over whether you should use Ethernet or Wi-Fi is more contentious than ever, and that's because wireless networking itself is better than ever. The latest Wi-Fi 7 standard promises theoretical speeds of up to 46Gbps, and it's a major increase over Wi-Fi 6E's 9.6Gbps maximum. In theory, Wi-Fi is fast enough to handle any home networking job. But the word theoretical is doing a lot of heavy lifting. Bandwidth caps, range limitations, physical obstructions, and wireless interference all ensure that you never see those theoretical maximums, or anything close to them, in the real world.
Ethernet is fast, consistent, and reliable. Connections go straight from your router or networking switch to the device that needs internet access. The flaws of Wi-Fi that reduce speed and stability don't apply to Ethernet connections. While it's not necessary to hardwire every internet-connected device in your home, these seven device types shouldn't be on Wi-Fi if you can help it.
Why you should always use Ethernet instead of Wi-Fi (when possible)
Use Ethernet when and where possible over a Wi-Fi connection.
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