Most households buy more speed than they use, and less of what they need
When home internet feels slow, people fix it by upgrading to a faster package, which in most cases achieves less than they expect.
Because what makes a Thai home connection feel poor in 2026 is usually not the speed of the line, but Wi-Fi that does not reach, an upload figure that is too low, and latency at certain hours.
So people pay for twice the speed every month and still have the same problem in the back bedroom, because the problem was never the line.
This article works out what your household actually needs, and the number turns out to be far below what most packages provide.
Work out what your household actually consumes
Add up what genuinely happens at the same time, not everything in the house.
Ordinary high-definition video streaming uses around five megabits per second. Very high definition at 4K uses around fifteen to twenty-five, and a video call around two to four. Those are figures the services publish themselves and they are broadly consistent.
Online gaming uses very little bandwidth but is sensitive to latency and jitter, which are separate from speed, and which is why a faster package does not make a game smoother.
Add the heaviest case that genuinely occurs in your house: two screens on 4K, one video call and one person gaming, which comes to roughly sixty megabits per second.
Compare that with the packages on sale, starting at several hundred and running to a gigabit, and an ordinary household is using under a fifth of what it pays for.
What actually limits the experience, and it is not the number on the package
The Wi-Fi is the first limit, because a gigabit line reaching a phone in a bedroom at sixty megabits is normal in a house with masonry walls, not a fault.
Test twice. First with a computer connected to the router by cable, to see what the line delivers. Then with a phone in the room that has the problem. The gap between the two numbers is the Wi-Fi problem, not the package. How to fix it is in whole-home Wi-Fi: mesh, access points or FTTR.
Upload speed is the figure people look at least and the one that matters most for anyone working from home, because a video call sends your picture out as well as receiving.
If your package uploads far more slowly than it downloads, the call stutters for the people watching you while you see them perfectly, a symptom people misread as a slow connection when it is specifically upload.
The device itself, because a phone or laptop supporting an older Wi-Fi standard gets what that standard allows, however fast the line is.
Two things that consume upload all day unnoticed
Cameras uploading to the cloud run twenty-four hours a day and send data out continuously, which in some houses uses more upload than a full day of meetings.
If there are several cameras, check whether they upload only on motion or all the time, and reduce the resolution on the ones where fine detail is not needed. Fitting cameras is covered in home CCTV and PDPA.
Automatic cloud backup, particularly photos and video from every phone in the house, which is usually set to run whenever it joins the Wi-Fi and consumes the entire upload exactly while you are in a meeting.
The answer is scheduling backups overnight, a two-minute setting change that fixes a symptom people have been blaming the internet for over months.
When more speed genuinely helps
There are three cases where more speed produces a noticeable difference, and outside those it usually does not.
The first is a household regularly downloading very large files, such as game updates of tens of gigabytes, where the speed decides whether you wait ten minutes or two hours.
The second is a household with genuinely many simultaneous users, such as a dormitory or a house with several families, where the number of people using it at once is the real multiplier.
The third is anyone regularly uploading video or large work files, who should look at the package's upload figure rather than the large download number in the advertising.
If your household matches none of those, the straightforward advice is to take the cheapest package that covers your real usage and spend the difference on coverage inside the house, which produces several times more improvement.
What to read in the contract besides the speed
- The advertised speed is a maximum, not a guarantee, which is normal for this kind of service. Look for whether any minimum is stated.
- The commitment period and the early termination charge, because a cheaper promotion usually ties you for longer, and the charge may exceed the saving.
- Whether the router is given or lent, because if lent you must return it when you leave and in some cases cannot replace it with a better one.
- Whether a free upgrade restarts the contract term, a common condition that ties you in again without your intending it.
- Installation and relocation charges, in case you move house during the term.
And always ask for the upload figure as a number, because two packages with the same download can differ several times over on upload, which is what decides the experience of anyone working from home. That is in a full-time home office and the systems to sort.
Frequently asked questions
What package does a household of four need?
Add the heaviest case that genuinely occurs: two 4K screens, one video call and one person gaming, coming to roughly sixty megabits per second. An ordinary household uses under a fifth of what is sold.
I upgraded and the bedroom is still slow.
Because the problem is the Wi-Fi and not the line. Test with a computer connected to the router by cable, then with a phone in that room. The gap is the coverage problem.
Does gaming need a fast package?
Not particularly, because games use very little bandwidth but are sensitive to latency and jitter, which are separate from the speed number on the package.
Why do others see me stuttering while I see them perfectly?
Because it is upload, not download. A call sends your picture out too, so check the package's upload figure.
What consumes upload without anyone noticing?
Cameras uploading to the cloud continuously, and automatic photo backup from every phone. Schedule backups overnight and check the camera settings.
In short
- An ordinary household uses under a fifth of the speed it is paying for.
- What limits the experience is Wi-Fi, upload speed and the device, not the number on the package.
- Test by cable at the router first, then with a phone in the room that has the problem.
- Cloud cameras and automatic photo backup consume upload all day unnoticed.
- More speed helps only for very large downloads, many simultaneous users, or regular uploading.
- Buy the package that covers real usage and spend the difference on coverage inside the house.