Does your phone support 5G Wi-Fi? Check in 5 minutes.

You bought a new router with support 5 GHz (5G Wi-Fi), but aren't sure if your smartphone can connect to such a network? Or have you noticed that your phone isn't detecting certain networks, even though other nearby devices are working reliably? The problem may lie in a lack of support. dual-band Wi-Fi - namely the range 5 GHz, which is often called “5G Wi-Fi” (not to be confused with mobile 5G!).

In this article, we'll look at how to accurately determine whether your phone supports networks. 5 GHz — without technical knowledge or special equipment. We'll review official and alternative methods, explain why some phones don't see these networks, and provide tips on configuring your router for maximum compatibility. Important: Even if your phone supports 5G Wi-Fi, its operation may be blocked by router settings or regional restrictions..

What is 5G Wi-Fi and why is it needed?

The term "5G Wi-Fi" often causes confusion - it is mistakenly associated with 5G mobile internet. In fact, it is a designation for Wi-Fi networks in the 5 GHz range, which differs from the traditional 2.4 GHz:

• 🔹 High speed: up to 1 Gbps (versus 300–600 Mbps on 2.4 GHz) thanks to less congestion on channels.
• 🔹 Less interference: the 5 GHz band is used by fewer devices (microwaves, Bluetooth headsets, etc. do not interfere).
• 🔹 Short range: The 5 GHz signal penetrates walls worse, so it is suitable for small rooms.
• 🔹 Limited compatibility: Older devices (manufactured before 2012-2015) may not support this range.

However, 5G Wi-Fi also has its downsides: it drains your phone's battery faster and can "get lost" when moving between rooms. Many modern routers broadcast on both bands simultaneously (dual-band), but the phone will only connect to one that supports it Wi-Fi module.

⚠️ Note: Some budget smartphones (especially Chinese brands) list 5 GHz support in their specifications, but in practice only work with 2.4 GHz due to software limitations. Check the actual performance!

Method 1: Checking via phone settings (Android)

The fastest way is to see which networks your phone can see. To do this:

1. Open Settings → Wi-Fi.
2. Click on the three dots (⋮) in the upper right corner and select Additionally or Wi-Fi settings.
3. Find the item Wi-Fi range, Frequency or Dual Band.

If you see names with suffixes in the list of available networks _5G, 5GHz or just two identical networks (for example, MyWiFi And MyWiFi_5G), your phone supports both bands. If only unmarked networks are visible, it's most likely only 2.4 GHz.

On some phones (eg. Xiaomi or Samsung) the path may differ:

• 📱 Samsung Galaxy: Settings → Connections → Wi-Fi → ⚙️ (gear) → Wi-Fi Mode (must be Auto or 5 GHz).
• 📱 Xiaomi/Redmi/Poco: Settings → Wi-Fi → Advanced → Frequency Band.
• 📱 Google Pixel: Settings → Network & Internet → Wi-Fi → Wi-Fi Preferences.

⚠️ Attention: On phones with custom firmware (for example, LineageOS) The menu may look different. If you can't find the item you need, try the app method (Method 3).

Method 2: Analysis of model specifications

If your phone doesn't show 5 GHz networks, it doesn't always mean it doesn't support them. The feature may be disabled or the router may be configured incorrectly. To check your device's capabilities:

1. Find your phone model in Settings → About phone → Model (For example, Samsung Galaxy A52 SM-A525F).
2. Enter the model name in the search engine with the query Wi-Fi specifications (For example, Redmi Note 10 Pro Wi-Fi specifications).
3. Look for lines like:
   • 🔍 Wi-Fi 5 (802.11ac) — supports 5 GHz.
   • 🔍 Dual-band Wi-Fi — works on both 2.4 and 5 GHz.
   • 🔍 Wi-Fi 4 (802.11n) - can support 5 GHz, but not always.
   • 🔍 Wi-Fi 6 (802.11ax) — must support 5 GHz.

Examples of specifications of popular models:

Please note: Even if the specifications state Dual-bandIn some countries (for example, in Russia), manufacturers may disable 5 GHz due to regulatory restrictions. In this case, reflashing or change the region in the phone settings.

Method 3: Wi-Fi Diagnostic Apps

If your phone settings don't provide a clear answer, use third-party utilities. They will show not only the supported bands but also the current connection frequency, signal strength, and speed.

Top 3 Android Apps:

• 📡 WiFi Analyzer (from VREM Software) - shows all available networks with frequency indication (2.4 GHz or 5 GHz).
• 📊 Network Analyzer — tests the speed and displays technical connection data.
• 🔍 WiFi Scanner — scans the airwaves and determines which standards your phone supports.

How to use WiFi Analyzer:

1. Install the app from Google Play.
2. Open the tab AP List (Access Points).
3. Look at the column Frequency - if there are networks with frequency 5xxx MHz (for example, 5180 MHz), your phone supports them.
4. Connect to such a network and check the speed in the tab Signal.

What should I do if the app doesn't see 5 GHz networks?

This could mean:

- Your phone does not support 5 GHz.

- The router has disabled broadcasting in this range (check its settings).

- There are restrictions on the use of 5 GHz in your country (for example, on some channels).

- The phone has power saving mode enabled, which disables 5 GHz scanning.

For iPhone suitable applications in App Store less due to iOS limitations, but can be used AirPort Utility (built-in) or WiFi SweetSpots to analyze the signal.

Method 4: Checking via the command line (Android)

If you are an experienced user, you can find out the supported frequencies through ADB (Android Debug Bridge). This method is suitable for phones with unlocked USB debugging.

Instructions:

1. Turn on Developer mode (click 7 times on Build number V Settings → About phone).
2. Activate USB debugging in the developer menu.
3. Connect your phone to your PC and run the following command in the terminal:

   adb shell dumpsys wifi

   Look for lines with Supported channels or Frequency bands.

Example output for a 5 GHz phone:

...
Supported channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 149, 153, 157, 161, 165
...
Frequency bands: 2.4GHz, 5GHz
...

If there are channels above in the output 14 (e.g. 36, 40, 149) — the phone supports 5 GHz. The absence of such channels means support only 2.4 GHz.

⚠️ Warning: Using ADB requires technical skills. Incorrect commands may damage your phone. If you're unsure, try other methods.

Method 5: Test with another router

Sometimes the problem isn't with your phone, but with your router settings. To rule this out:

1. Find the router that guaranteed broadcasts in the 5 GHz range (for example, TP-Link Archer C6, Asus RT-AX55).
2. Make sure it is in the enabled mode. Dual-Band or 5 GHz (in the router settings, section Wireless).
3. Try connecting to the 5 GHz network from your phone. If the connection is successful, the problem is with your main router.

Common reasons why a phone doesn't see the 5 GHz band on a router:

• 🔌 The 5 GHz band is disabled in the router (check the settings) Wireless → 5GHz Wireless).
• 📡 An incompatible channel is being used (eg. 165, which some phones do not support).
• 🔒 Feature enabled Smart Connect (combines 2.4 and 5 GHz into one network), causing the phone to only connect to 2.4 GHz.
• 🌍 Regional restrictions (5 GHz channels are blocked in some countries).

What to do if your phone doesn't support 5G Wi-Fi

If the test showed that your phone only works on 2.4 GHz, don't despair. Here are some solutions:

• 🔄 Update the firmware: Sometimes manufacturers add 5 GHz support in new software versions (check in Settings → System Update).
• 📶 Use Mesh systems: They automatically switch devices between ranges (eg. TP-Link Deco or Google Nest WiFi).
• 🔌 Set up your router:
  • Turn it off Smart Connectso that 2.4 and 5 GHz networks are displayed separately.
  • Set a fixed channel in the range 36-48 (these are better supported by older devices).
  • Reduce the 5 GHz signal strength if your phone is losing network reception.
• 📱 Buy a Wi-Fi adapter: for some phones (eg with USB-C) you can connect an external 5 GHz adapter.

If you are planning to buy a new phone, pay attention to support Wi-Fi 6 (802.11ax) - It necessarily includes 5 GHz and offers better speed and stability.

FAQ: Frequently Asked Questions about 5G Wi-Fi

My phone sees the 5 GHz network, but it won't connect. What's the problem?

Possible reasons:

• 🔐 Incorrect password (check the case).
• 📡 The router uses an incompatible encryption standard (e.g. WPA3, which is not supported by older phones). Try changing to WPA2-PSK.
• 🔄 The phone has power saving mode enabled, which blocks the connection to 5 GHz.
• 🌍 The 5 GHz channel is blocked in your country (try changing the channel in your router settings).

How do I know what frequency my phone is connected to right now?

On Android:

• Install the application WiFi Analyzer and open the tab Signal — the frequency will be indicated there.
• Or go to Settings → Wi-Fi → Network name → Speed (on some phones the frequency is displayed).

On iPhone:

• Open Settings → Wi-Fi, click on ⓘ next to the network - if there is a line Frequency, it will be indicated there 5 GHz.

Is 5G Wi-Fi harmful to health?

There's no evidence that 5 GHz Wi-Fi is more harmful than 2.4 GHz. The radiation power of home routers is extremely low (up to 100 mW) and does not exceed safety standards. For comparison, a microwave oven emits 1,000 times more radiation. It's important to avoid placing the router near your regular place of residence (for example, at the head of your bed).

Is it possible to force the phone to always connect to 5 GHz?

Yes, but it depends on the firmware:

• 📱 On Samsung: In the Wi-Fi settings, select Wi-Fi Mode → 5 GHz.
• 📱 On Xiaomi: turn on 5 GHz Priority in the advanced Wi-Fi settings.
• 📱 On iPhone: iOS automatically selects the best range, but you can “forget” the 2.4 GHz network in the settings, leaving only 5 GHz.

Please note: Forced connection to 5 GHz may reduce battery life.

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

This is paradoxical, but possible for several reasons:

• 📶 Weak signal: 5 GHz has poor penetration through walls. Check the signal strength in the app. WiFi Analyzer.
• 🔄 Channel congestion: If there are many other networks on your 5 GHz channel, your speed will drop. Change the channel in your router settings.
• 🔌 Router limitations: some budget models cut speed at 5 GHz.
• 📱 Phone limitations: Older smartphones may support 5 GHz, but only at low speeds (e.g. up to 86 Mbps).