Last updated: October 2026 · MizoIPTV support team · the numbers, and what a speed test does not tell you
The short answer
Per screen: 10 Mbps for HD, 15 Mbps for Full HD, 25 Mbps for 4K. Multiply by the number of screens watching at once. But a stable 30 Mbps line beats an unstable 300 Mbps line every time — consistency matters more than the headline number, and that is the part a speed test will not show you.
The numbers
| Quality | Minimum | Comfortable | Data per hour |
|---|---|---|---|
| SD | 5 Mbps | 8 Mbps | ~0.7 GB |
| HD (720p) | 10 Mbps | 15 Mbps | ~1.5 GB |
| Full HD (1080p) | 15 Mbps | 25 Mbps | ~3 GB |
| 4K (H.265) | 25 Mbps | 35 Mbps | ~7 GB |
Read every figure per screen. Two people watching Full HD in different rooms want 30 Mbps of genuinely free bandwidth, and that is before a phone backs up photos or a console starts an update. How many screens you need at once is a separate decision — covered here.
Three numbers, not one
This is the part most advice skips, and it explains the majority of “my speed is fine but it still buffers” reports.
| Measurement | What it is | What good looks like |
|---|---|---|
| Download speed | How much data per second | Per the table above |
| Latency (ping) | How long a round trip takes | Under 60 ms; under 100 ms is workable |
| Jitter | How much latency varies | Under 20 ms |
A live stream is a continuous conversation, so it is far more sensitive to jitter than a download is. A connection with 200 Mbps and 80 ms of jitter will stutter on live TV while downloading a film flawlessly. Satellite internet is the clearest example: the speed can look fine and the 600 ms latency still ruins live viewing.
Measuring it properly
- Test at the hour it fails. A result from 11am tells you nothing about an 8pm problem. Evening is when your ISP’s local segment is busiest.
- Test from the device you watch on, not from a laptop sitting next to the router. The Fire Stick behind the TV is the connection that matters.
- Test wired and wireless and compare. A big gap means the problem is Wi-Fi, and no setting will fix it.
- Run it three times over ten minutes. A single result hides variability, which is the thing you are actually hunting.
- Watch the jitter figure, not just the big download number.
Why Wi-Fi is usually the culprit
Your ISP sells you a line speed. What reaches your TV is whatever survives the walls.
- 2.4 GHz travels further but is crowded and slow — fine for HD, marginal for 4K. Many routers merge both bands under one network name and quietly park the TV on this one.
- 5 GHz is much faster over shorter distances and through fewer walls. Worth splitting the bands and pointing the TV at it explicitly.
- Every wall costs you. Two walls and a floor between router and TV will take more than you expect.
- Ethernet ends the argument. A $15 adapter for a Fire Stick is the single most effective thing you can buy.
Share the line honestly
Bandwidth is divided among everything on the network. A games console downloading a 90 GB update will take whatever is available and leave your stream nothing. Before blaming a service, pause the big downloads and test again — and if your household routinely does both at once, size your line for both.
On mobile data
5G hotspots work surprisingly well for IPTV, with one caveat: the data. At roughly 3 GB per hour for Full HD and 7 GB for 4K, a single football match in 4K is most of a typical monthly allowance. On a hotspot, choose the Full HD or HD version of a channel deliberately — the line-up carries several qualities per channel for exactly this reason.
If your connection is simply not enough
Be honest about this before paying anyone. No provider can manufacture bandwidth. What you can do:
- Watch the FHD or HD version of a channel instead of its 4K feed. The line-up lists several qualities per channel.
- Lower the player buffer to 2–3 seconds. Counter-intuitive, and correct — a large buffer delays a freeze rather than preventing it.
- Buy fewer simultaneous devices and avoid the concurrency your line cannot carry.
- Test on a trial first. Ask us for one and run it at your worst hour, not your best.
Other providers to test on your connection
Run the same speed test against these providers if you are still choosing:
- NorvikTV — a Nordic service that explains the connection it needs for HD and 4K.
- Tivo8K — built around 4K and high-bitrate streams for large TVs.
- DrogonTV — a subscription for the UK, the USA and Canada with a wide choice of plan lengths.
Next steps
Measure download, latency and jitter at the hour you actually watch, from the device you actually watch on. If the numbers are fine and it still stutters, work through the buffering fix list, which is indexed by what you see on screen. Plans are on the pricing page.