Here's How Fast Your Wi-Fi Actually Needs To Be For 4K Streaming

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4K streaming has a reputation as one of the most demanding processes you can dedicate your Wi-Fi router to handling. But how much bandwidth do you actually need when ISPs offer gigabit packages that pass 1,000 Mbps and modern routers like the TP-Link Tri-Band BE15000 boast speeds of 15,000 Mbps or even higher? For a household of just one person watching a 4K movie, who will also have a phone and a few smart devices connected to the Wi-Fi at the same time, 50 Mbps download speed is about all you need.

That accounts for both the stream itself, which never requires more than 25 Mbps, and for the overhead of a smartphone and a few other wireless devices like smart plugs and laptops constantly communicating over the internet. Competing devices peeling away bandwidth is how you get stuttering and stream interruptions. For each additional simultaneous 4K stream, you want at least another 25 Mbps, as you would for any other individuals in the household using the Wi-Fi for intensive tasks like gaming online or video conferencing.

So, for a household of four people who may be watching simultaneous 4K streams and using a bevy of internet-connected devices, a consistent connection of at least 200 Mbps would be important for uninterrupted streaming. There are some exceptions for 4K video that lower the requirement. While high-end services that prioritize image quality, like Apple TV, do recommend at least 25 Mbps, other services like Netflix use compression to accommodate low-bandwidth connections, and they require as little as 15 Mbps for 4K streams.

While 50 to 200 Mbps doesn't sound like much considering the promised speeds of many internet packages and the latest routers, your actual streaming experience can be easily choked by a variety of Wi-Fi issues. First, you should ensure your router is reasonably new; a router compliant with the Wi-Fi 6 standard or better is ideal, since it was designed to meet the demands of the day in 2019 when 4K TVs and streaming had become widespread.

Still, poor positioning can hamper even the most powerful routers, so make sure you've put your router in the best location to serve your TV and your other wireless devices. If you're still not getting the 4K streaming experience you want, or if you don't want to invest in a new router quite yet, then keep in mind that your TV probably has an Ethernet port. By directly wiring your smart TV to your router, you can bypass device congestion and other issues caused by the limitations of Wi-Fi networks that might be interrupting your movies and TV shows.