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

Have you bought a new router with dual-band Wi-Fi support (2.4 and 5 GHz), but your phone stubbornly connects only to the slow 2.4 GHz network? Or are you planning to upgrade your home network but aren't sure if your smartphone can handle modern standards? The problem is... Not all phones support 5 GHz frequency. — especially budget models or devices older than 5-7 years. In this article, we'll look at how to accurately determine your phone's compatibility with 5 GHz Wi-Fi without resorting to complex technical manipulations.

Spoiler: the check takes less than 5 minutes if you know where to look. We'll take a look official manufacturer specifications, hidden Android/iOS settings, specialized apps, and even physical markings on the device's body. You'll also learn why some phones "see" 5 GHz but don't connect—and how to fix it.

Important: Even if your phone supports 5 GHz, your router may block the connection due to incorrect channel settings or regional restrictions.. More on this in the last section of the article.

1. Checking the phone's official specifications

The most reliable way is to check the technical specifications for your model on the manufacturer's website. However, there are pitfalls: some brands (especially Chinese ones) may only list 5 GHz support in their "global" versions of devices, while releasing stripped-down versions for the Russian market.

Where to look:

• 🔍 Manufacturer's website: enter a query like “phone model specs" (for example, "Redmi Note 10 Pro specs"). Look for the section Wireless LAN or Wi-Fi.
• 📄 Documentation in the box: the phone often comes with a booklet with brief specifications, which may mention the Wi-Fi standard (for example, 802.11ac means 5 GHz support).
• 🛒 Product card in the store: on sites like DNS, Messenger or Wildberries The specifications usually include the Wi-Fi range. But be careful—sometimes sellers copy data from other models!

What to look for in specifications:

• 📶 Wi-Fi standards:
  • 802.11a, 802.11n, 802.11ac, 802.11ax (Wi-Fi 6) — support 5 GHz.
  • 802.11b, 802.11g — work only at 2.4 GHz.
• 🔄 Dual-band Wi-Fi (Dual Band) is a clear indication of support for both frequencies.
• ⚠️ Regional restrictions: some models (eg Xiaomi (for China) may have 5 GHz support disabled in firmware for other countries.

⚠️ Note: If the specifications indicate “Wi-Fi 802.11 b/g/n”, this means support 2.4 GHz onlySuch phones will physically be unable to connect to a 5 GHz network, even if the router broadcasts it.

2. Checking through phone settings (Android)

If you're too lazy to search for specifications, you can try finding the information directly in the phone's menu. On Android, this is done via hidden system settings or special codes. This method doesn't work on all devices, but it's worth a try.

Instructions for most Android phones:

1. Open the app Settings.
2. Go to the section Wi-Fi (or Network and Internet → Wi-Fi).
3. Click on the three dots (⋮) in the upper right corner and select Additionally or Advanced settings.
4. Search for the item Wi-Fi range, Frequency or BandIf there is a possibility to choose 5 GHz - your phone supports this frequency.

If there is no such item, try an alternative method:

1. Open the app Telephone and enter the combination: ##4636##.
2. In the menu that opens, select Wi-Fi Information (Wi-Fi Information).
3. Look at the line Frequency Band - if the values ​​specified there are like 5180 MHz or 5745 MHz, then 5 GHz is supported.

⚠️ Note: On some phones (eg. Huawei or Honor) Access to the engineering menu may be blocked. In this case, use the methods in the following sections.

Try entering the engineering code ##4636##

Install a Wi-Fi analyzer app (see section 3)

Check the model specifications on the manufacturer's website

Update your phone's firmware (sometimes adds support)

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3. Applications for Wi-Fi network analysis

If system settings don't provide an answer, third-party utilities can help. They not only show supported frequencies but also help diagnose connection issues. We tested five popular apps—the best of which are free and don't require root access.

Top 3 apps for checking:

• 📡 WiFi Analyzer (from farproc) — shows all available networks, indicating their frequency (2.4 or 5 GHz). If your phone sees 5 GHz networks, it supports them. Link to Google Play.
• 🔍 Network Signal Info — displays technical connection details, including the Wi-Fi range. Useful if the phone is already connected to the network. Link.
• 🛠️ Aida64 — a powerful utility for hardware diagnostics. In the section Network → Wi-Fi shows supported standards. Link.

How to use WiFi Analyzer:

1. Install and open the application.
2. Go to the tab AP List (AP List).
3. Pay attention to the column Frequency (Frequency): networks with frequencies 5180–5825 MHz operate at 5 GHz.
4. If such networks are displayed, but the phone does not connect to them, the problem is in the router settings (see section 6).

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

This could mean one of three things:

1. Your phone does not support 5 GHz at the hardware level.

2. The 5 GHz band is disabled in the router (check the settings).

3. The application has not been updated for a long time and does not support modern standards (update it).

Example of display in Aida64:

Wi-Fi:
Standards: 802.11a/b/g/n/ac
Bands: 2.4 GHz, 5 GHz
Max. speed: 866 Mbps (5 GHz)

4. Check on iPhone (iOS)

On iPhones, everything is simpler: All models starting with the iPhone 5 support 5 GHz.However, there are nuances with regional settings and iOS restrictions that can interfere with the connection. Here's how to check and set it up:

Method 1: Via Wi-Fi settings

1. Open Settings → Wi-Fi.
2. Make sure Wi-Fi is turned on and look at the list of available networks.
3. If the network names contain suffixes like -5G or _5GHz, your iPhone sees them (and supports them).

Method 2: Via model information

1. Go to Settings → General → About.
2. Look at the line Model (For example, A1660).
3. Check the specifications of this model on the website Apple SupportAll iPhones since 2013 support 5 GHz.

iOS Features:

• 🔄 iPhone automatically selects the best band (2.4 or 5 GHz) depending on the signal. You can't force it to choose a frequency.
• ⚠️ If your iPhone isn't connecting to 5GHz, try Forget the network (in Wi-Fi settings) and reconnect.
• 🌍 In some countries (such as Japan), iPhone may limit the 5 GHz band due to local regulations. This can be fixed by changing the region in the settings.

⚠️ Note: The iPhone SE (1st generation) and iPhone 6/6 Plus support 5 GHz, but may not work reliably with some routers on channels above 149. In this case, changing the channel on the router will help (see section 6).

5. Physical inspection: markings on the phone body

Few people know, but some manufacturers indicate the supported Wi-Fi standards directly on sticker under the phone cover Or in the documentation. This is relevant for older models (pre-2018), where software verification methods may not work.

Where to look:

• 📱 Under the removable lid: on some phones (eg. Samsung Galaxy S5 or LG G3) under the battery there is a sticker with inscriptions like 5G Wi-Fi or Dual Band.
• 📄 On the box: look for icons 802.11ac or Wi-Fi 5.
• 🔧 On the SIM tray: rarely, but markings of communication standards are found.

Examples of markings:

• 2.4G/5G - support for both ranges.
• 802.11a/n/ac — 5 GHz support.
• Wi-Fi 5 or Wi-Fi 6 - guaranteed 5 GHz support.

If your phone does not have a removable cover (for example, iPhone or modern Samsung), this method won't work. In this case, use the methods from the previous sections.

6. Why doesn't my phone connect to 5 GHz even though it supports it?

Have you verified that your phone supports 5 GHz, but it stubbornly connects only to 2.4 GHz or doesn't detect the network at all? The problem may be on the device itself. routerHere are the most common causes and solutions:

Check your router settings:

• 🔄 Separate names for ranges: if the router broadcasts one network for 2.4 and 5 GHz (for example, MyWiFi), the phone may get stuck on 2.4 GHz. Separate the networks by giving them different names (for example, MyWiFi_2G And MyWiFi_5G).
• 📶 Incorrect 5 GHz channelIn Russia, channels 36–64 and 149–165 are permitted. If your router is set to channel 100–144, some phones won't see the network. Change the channel in your router settings.
• 🌍 Regional restrictions: In the router settings, make sure that the country is selected Russia (or Europe). Other channel restrictions may apply for the US or Japan.
• 🔒 Security type: if it is at 5 GHz WPA3, and your phone doesn't support it, the network won't be visible. Try changing it to WPA2-PSK.

How to change the 5 GHz channel on a router (using an example) TP-Link):

1. Go to the router's web interface (usually at 192.168.0.1 or 192.168.1.1).
2. Go to Wireless Mode → 5GHz Settings.
3. In the field Channel select 36, 40, 44, 48 or 149.
4. Save the settings and reboot the router.

⚠️ Attention: On some routers (for example, Keenetic) The 5 GHz band is disabled by default. Enable it in the section Wi-Fi Network → 5 GHz Access Point.

If after all these steps the phone still does not connect:

• 🔄 Restart your phone and router.
• 📱 Try it on Android Forget the network (in Wi-Fi settings) and reconnect.
• 🛠️ Update your router's firmware (instructions are usually available on the manufacturer's website).

FAQ: Frequently asked questions about 5 GHz support

My phone supports 5 GHz, but the speed is slower than 2.4 GHz. Why?

This can happen for several reasons:

• 📶 Weak signal: 5 GHz has poorer penetration through walls. Try moving closer to the router.
• 🔄 Congested channel: use the app WiFi Analyzerto find a less crowded 5 GHz channel.
• 🛠️ Router limitationsSome budget routers throttle speeds at 5 GHz. Check your QoS settings.

How to force an Android phone to connect to 5GHz?

On most phones, this isn't possible—the system automatically selects the best band. But there are workarounds:

1. Separate the networks on your router (different names for 2.4 and 5 GHz) and connect to 5 GHz manually.
2. Use the app WiFi Manager (requires root rights).
3. On some firmware (for example, MIUI) there is an option in the Wi-Fi settings Intelligent switching - turn it off.

Does a phone without markings on the case support 5 GHz?

Yes, it does. Markings on the case are optional, and many manufacturers don't include them. It's best to check through settings, specifications, or apps (see sections 2–4).

Is it possible to add 5GHz support to a phone that doesn't support it?

No, it's not possible. 5GHz support depends on hardware (Wi-Fi chip), and no firmware or apps can add it. The only solution is to buy a new phone.

Why doesn't my new phone see 5 GHz on the router, but my laptop does?

Possible reasons:

• ⚠️ It's enabled on the router 802.11r (Fast Roaming), which your phone doesn't support. Disable this option.
• 🌍 Your router is configured for 5 GHz channels that are not permitted in your region (e.g., 100–144). Change the channel to 36–48 or 149–165.
• 🔒 An incompatible security type is used (e.g. WPA3). Switch to WPA2-PSK.