How to Check if Your Phone and Router Support 5GHz Wi-Fi: A Step-by-Step Guide

You bought a new router with support Wi-Fi 5 GHz, but the internet speed on your phone hasn't improved? Or, on the contrary, the latest model smartphone stubbornly clings to 2.4 GHz, even though the specifications promise dual-band operation? The problem may lie in device incompatibility or incorrect settings. In this article, we'll look at how to accurately determine whether your device supports it. Android or iPhone frequency 5 GHz, and check if your router is broadcasting it.

Many users are confused 5G networks of mobile operators (For example, MTS 5G or Beeline 5G) With Wi-Fi at 5 GHzThese are completely different technologies: the first one is responsible for mobile Internet (as 4G/LTE), and the second is for the wireless network at home or in the office. We will focus specifically on Wi-Fi 5 GHz, which provides higher speed and less interference compared to 2.4 GHz, but has a smaller coverage area.

Before upgrading your router or smartphone, let's figure out how to check compatibility. Spoiler: sometimes the problem can be solved by simply changing the settings!

1. How to find out if your phone supports 5GHz Wi-Fi: Check the specifications

The most reliable way is to study technical specifications your device. Manufacturers always list the supported Wi-Fi standards in their official documentation. Here's how:

• 📱 On Android: Find your phone model in Settings → About phone → ModelThen enter its name into a search engine with the query "characteristics [model] Wi-Fi". For example: "Samsung Galaxy A52 Wi-Fi specifications".
• 🍎 On iPhone: All models starting from iPhone 5 (2012) support 5 GHz, but you can check it on the website Apple or in the section "Settings → General → About → Model".
• 🔍 Universal method: Use databases like GSMArena or DeviceSpecs, where all technical parameters are indicated, including support 802.11a/n/ac/ax (standards for 5 GHz).

Please note the standards:

• 802.11a/n/ac/ax — support 5 GHz.
• 802.11b/g — work only on 2.4 GHz.

If the specifications state Dual-band or 2.4G/5G, which means the device is compatible with both ranges.

Warning: Some budget models (for example, Redmi 9A or Samsung Galaxy M01) can support 5 GHz Only in certain regions. Check the official documentation for details!

2. Checking 5 GHz support through your phone settings

If you're too lazy to look for specifications, you can try connecting to the network 5 GHz directly. To do this:

1. Make sure your router broadcasts 5 GHz network (we'll tell you how to check this in the next section).
2. On your phone, open the list of available Wi-Fi networks (Settings → Wi-Fi).
3. If the list shows two networks with the same name (For example, MyWiFi_2G And MyWiFi_5G), which means the router broadcasts both ranges.
4. Connect to the network marked 5G or 5GHzIf the connection is successful, your phone supports this range.

On Android some manufacturers (for example, Xiaomi or Huawei) hide networks 5 GHz, if the phone does not support them. On iPhone Both networks are usually displayed, but connect to 5 GHz This will only work if there is support.

3. How to check if your router is broadcasting 5 GHz Wi-Fi

Even if the phone supports it 5 GHz, the router can only be configured to 2.4 GHzHere's how to find out:

• 🖥️ Via the router's web interface:
  1. Connect to the router via cable or Wi-Fi.
  2. Enter the router's IP address into your browser (usually 192.168.0.1 or 192.168.1.1).
  3. Log in (default logins/passwords are indicated on the router sticker).
  4. Find the section Wi-Fi, Wireless network or Wireless.
  5. Check your range settings (Band or Frequency). If there are options 2.4 GHz And 5 GHz, the router supports both.
• 📱 Via mobile app: Many routers (TP-Link, ASUS, Keenetic) have official control apps. They usually have a section with information about the current range.

If there is no mention in the router settings 5 GHz, then your model doesn't support it. A list of popular routers with dual-band support is provided below:

Router model	5 GHz support	Max. speed (5 GHz)
TP-Link Archer C6	✅ Yes	867 Mbps
ASUS RT-AX55	✅ Yes (Wi-Fi 6)	1201 Mbps
Keenetic Extra	✅ Yes	866 Mbps
D-Link DIR-615	❌ No	—
Xiaomi Mi Router 4A	❌ No (2.4 GHz only)	—

Important: Some routers (eg. Zyxel Keenetic Lite) support 5 GHz only in access point mode, but do not broadcast it as a primary network. Check the instructions!

4. Speed ​​test: an indirect way of checking

If you're unsure which band your phone is connected to, you can run a speed test. Network 5 GHz usually shows higher speed at short distances (up to 10 meters from the router), whereas 2.4 GHz more stable at long range, but slower.

How to check:

1. Install the speed test app (Speedtest by Ookla, Fast.com).
2. Connect to Wi-Fi and stand close to the router (within 1-2 meters).
3. Run the test. If the speed exceeds 300–400 Mbps, most likely you are connected to 5 GHz.
4. Move away 10-15 meters and repeat the test. If the speed has dropped by 2-3 times, it's 2.4 GHz.
Why can the speed be low even at 5 GHz?

Speed ​​is affected by interference from other devices (microwaves, neighboring routers), channel settings in the router, provider tariff restrictions, or the hardware capabilities of the phone. For example, iPhone 6s supports 5 GHz, but its maximum speed is 433 Mbps, while Samsung Galaxy S22 can deliver up to 1200 Mbps.

This method doesn't provide a 100% guarantee, but it helps to indirectly assess the situation. For an accurate result, it's best to combine it with a performance check.

5. Specialized applications for Wi-Fi analysis

There are utilities that show the band a device is connected to and analyze surrounding networks. Here are the top three:

• 📊 WiFi Analyzer (Android): Shows all available networks with range (2.4 GHz or 5 GHz), channel, and signal level. The free version is quite functional.
• 🔍 NetSpot (iOS/Android/PC): Creates a Wi-Fi coverage heatmap and displays the frequency range. A trial period is available.
• 📶 Fing (Android/iOS): Scans the network and displays detailed information about connected devices, including Wi-Fi range.

Example of work WiFi Analyzer:

1. Open the app and wait for the scan.
2. Find your network in the list. If in the column Band indicated 5 GHz, which means the router is broadcasting this range.
3. If your phone is connected to a network, but it only shows up as 2.4 GHz, that means either the phone doesn't support it 5 GHz, or the router does not broadcast it.

Install the app from Google Play

Run a network scan

Find your network in the list

Check the Band column (should be 5 GHz)

Compare with phone specifications-->

6. Common problems and solutions

Sometimes the phone and router support 5 GHz, but the connection fails. Let's look at typical causes and how to fix them:

• 🔄 Automatic switching between ranges: Some routers (eg. ASUS with function Smart Connect) unite 2.4 GHz And 5 GHz under one name and automatically select a range. Disable this feature in your router settings to view both networks separately.
• 🔒 Hidden 5GHz Network: The option may be enabled in your router settings. Hide SSID For the 5 GHz band, disable it or enter the network name manually on your phone.
• 📶 Invalid channel: In some countries (for example, in Russia) for 5 GHz Not all channels are allowed. Set the channel in the router. 36–48 or 149–165 (depending on the region).
• 🔋 Energy Saving: On Android In power saving mode, support may be disabled 5 GHzCheck your battery settings.

Warning: If you live in an apartment building, the channels 5 GHz may be overloaded by neighboring routers. Use apps like WiFi Analyzerto select the least loaded channel.

7. Alternative methods (for advanced users)

If standard methods don't help, you can use more technical approaches:

• 💻 Command Prompt (Windows):
  1. Connect your phone to your PC and turn it on USB debugging (Settings → For developers).
  2. In the command line, run:

     adb shell dumpsys wifi

  3. Find the line Frequency. If the value > 2400, then it is used 5 GHz.
• 📱 Developer Mode (Android):
  1. Activate Developer mode (Click 7 times on Build number in the phone settings).
  2. Go to Settings → System → Developer options → Wireless & networks.
  3. Check out the current Wi-Fi standard (802.11ac means 5 GHz).

These methods require some skill, but they provide the most accurate results. If you're unsure, it's best to refer to the previous sections.

⚠️ Attention: Router settings and available Wi-Fi bands may vary depending on firmware and regional restrictions. For example, different channels are allowed in the US and Europe. 5 GHzPlease check your model's documentation for current settings.

FAQ: Frequently Asked Questions

My phone supports 5 GHz, but my router doesn't. What should I do?

If the router does not support 5 GHz, you have three options:

1. Buy a new router with dual-band support (for example, TP-Link Archer AX10).
2. Use 2.4 GHz, but the speed will be lower.
3. Connect to the current router 5 GHz access point (For example, Ubiquiti UniFi) via cable.

How to force your phone to always connect to 5GHz?

On Android you can try:

1. Disable Automatic switching in the Wi-Fi settings (if there is such an option).
2. Install the app WiFi Priority, which forces the selection of a range.
3. Disable it in your router settings. 2.4 GHz (if compatibility with older devices is not required).

On iPhone there is no direct way to force a connection to 5 GHz, but you can turn it off 2.4 GHz on the router.

Why is the speed on 5 GHz slower than on 2.4 GHz?

This can happen for several reasons:

• Weak signal (5 GHz is worse at passing through walls).
• Interference from other devices (such as baby monitors or wireless headphones).
• Incorrect router settings (channel width, mode) 802.11n/ac/ax).
• Restrictions from the provider (low-speed tariff).

Try changing the channel in your router settings or reducing the channel width to 20/40 MHz.

Is it possible to increase the 5GHz coverage area?

Yes, but with some reservations:

• Use Mesh systems (For example, TP-Link Deco), which create a single network with smooth switching between nodes.
• Install 5 GHz repeater (For example, ASUS RP-AX56).
• Change the location of the router - 5 GHz Works better in line of sight and at short distances.

Please note that any repeaters reduce speed by approximately 50%.

Does my laptop support 5GHz Wi-Fi?

The check is similar to the phone:

1. Check the model specifications on the manufacturer's website.
2. IN Windows open Device Manager → Network Adapters, find your Wi-Fi module and check its specifications online.
3. IN macOS hold Option and click on the Wi-Fi icon in the menu bar - the current standard will be displayed (802.11ac = 5 GHz).