Internet requirements for 4K streaming
For smooth 4K streaming, we recommend at least 25 Mbps of sustained download speed on the device you're streaming to, ideally over a wired connection. Lower speeds can still work but may result in the stream automatically dropping to a lower resolution.
Recommended speeds by resolution
| Resolution | Recommended sustained speed |
|---|---|
| Standard definition | 3+ Mbps |
| HD (1080p) | 5–10 Mbps |
| 4K (Ultra HD) | 25+ Mbps |
These are general guidelines — actual requirements vary based on the specific content and compression used.
Wired vs. Wi-Fi
A wired Ethernet connection is generally more stable than Wi-Fi because it isn't affected by wall interference, distance from your router, or competing wireless networks. If your Smart TV or streaming box is far from your router, consider a powerline adapter or Wi-Fi extender to improve signal strength.
Other factors that affect your available bandwidth
- Other devices streaming, downloading, or video-calling on the same network at the same time
- Your router's age and capability
- Your internet provider's actual delivered speed versus advertised speed, especially during peak hours
How to check your actual speed
Run a speed test on the same device and network you plan to stream on, ideally at the time of day you usually watch, since speeds can vary during peak usage hours.
What happens if your connection isn't fast enough
Most compatible player apps will automatically adjust to a lower resolution or show buffering if your connection can't sustain 4K. This is a normal adaptive behavior, not a sign that the service itself is broken.
Test your own setup
The best way to know if your connection and device are ready for 4K is to test them directly — our 24-hour trial lets you do exactly that before subscribing.
Related questions
Is Wi-Fi good enough for 4K streaming?
Wi-Fi can work well for 4K streaming if your signal is strong and stable, but a wired Ethernet connection is more reliable, especially for Smart TVs and streaming boxes.
Does using multiple devices at once affect streaming quality?
Yes — other devices on your network using bandwidth simultaneously (downloads, video calls, other streaming) can affect your available speed for 4K streaming.