Test Your Internet Speed on Your Phone and Fix Slow Wi-Fi
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This page is the hands-on part: first an accurate way to test your speed with a free phone app, then the fixes that make the biggest difference to slow Wi-Fi, in the order worth trying them.
How to run an accurate speed test on your phone
One test on its own tells you little. The trick is to test in a few places and compare. These steps use the free Speedtest by Ookla app, but the method works with any reputable speed test.
Pause other traffic
Stop big downloads, streams and cloud backups on your devices so they do not compete with the test.
Check your connection
Make sure your phone is on Wi-Fi, not mobile data. The Wi-Fi icon should show at the top of the screen.
Test next to the router
Stand in the same room as the router and run a test. This is your best-case Wi-Fi number.
Test where it feels slow
Go to the room where you have problems and run the test again.
Repeat at a busy time
Run one more test in the evening, when many people in your area are online, and compare the results in the app's history.
If the result next to the router is close to your plan but the far room is much slower, the problem is Wi-Fi coverage inside your home. If even the test next to the router is well below your plan, the slowdown is more likely the modem, the router or the provider.
Fix slow Wi-Fi: start with the router
Router placement is the cheapest fix and often the most effective. Wi-Fi spreads out from the router in every direction, so where it sits decides how much of your home it can reach.
- Put it in the middle of your home, not in a corner or at one end of the house.
- Raise it up onto a shelf or desk rather than the floor.
- Keep it in the open, not inside a cabinet, behind a TV or next to metal objects.
- Keep it away from microwaves and other wireless gadgets that can interfere.
- Restart it by unplugging the modem and router for about 30 seconds, then plugging the modem in first.
It also helps to install any firmware updates your router's app or settings page offers. For a TV or computer that never moves, a network cable to the router is faster and steadier than any Wi-Fi.
2.4 GHz or 5 GHz: which band to use
Most home routers broadcast on two bands, and newer ones add a third. Each has a trade-off between speed and reach.
| Band | Strength | Weakness |
|---|---|---|
| 2.4 GHz | Reaches farther and passes through walls better | Slower and more crowded by neighbors and gadgets |
| 5 GHz | Much faster and usually less crowded | Shorter range, weaker through walls |
| 6 GHz (Wi-Fi 6E and 7) | Fastest, least crowded | Shortest range, needs newer devices |
Use 5 GHz, or 6 GHz if you have it, for phones and laptops in the same room or one room away from the router. Leave 2.4 GHz for far corners and for smart-home gadgets that only support it. Many routers combine the bands under one network name and choose for you, which works well in most homes.
When to call your internet provider
Some problems only the provider can fix. It is worth calling when:
- Tests next to the router, or on a wired computer, stay well below your plan at different times of day.
- The connection drops completely several times a day or week.
- The modem's status lights show an error after you have restarted it.
Before you call, check whether there is a wider outage. The Speedtest app includes Downdetector, which shows real-time reports of problems with popular online services. When you do call, have a few recent test results from the app's history ready, along with the speed your plan promises. Specific numbers make the conversation much shorter.
Common questions
Is the Speedtest app free?
Yes. Speedtest by Ookla is free to download and use. The free version shows ads, and there is an optional in-app purchase to remove them.
Why is my phone slower than my laptop on the same Wi-Fi?
Phones and laptops can have different Wi-Fi hardware and antennas, and an older phone may not support the fastest standards. Test both in the same spot at the same time for a fair comparison.
Does a speed test use a lot of data?
A single test can use a noticeable amount of data because it sends and receives data as fast as it can. On Wi-Fi that rarely matters, but on a limited mobile plan, avoid running many tests in a row.
What is a good ping?
Under about 50 ms feels responsive for calls and most games. Higher numbers are fine for streaming and browsing but can make calls and games feel laggy.