How to Check Wi-Fi Standard on Your Smartphone: A Complete Guide for Android and iOS

Have you ever noticed that your phone connects to Wi-Fi, but the internet speed leaves much to be desired? Or maybe your router supports Wi-Fi 6, and the smartphone stubbornly works only on 2.4 GHzThe problem may be due to incompatible wireless network standards. Knowing the exact Wi-Fi version on your device will help you optimize your router settings, avoid sluggish performance, and even save battery life.

In this article we will look at All methods for checking the Wi-Fi standard on phones running Android And iOS — from hidden engineering settings menus to specialized applications. You'll learn how to distinguish 802.11n from 802.11ac, Why iPhone 12 does not always use Wi-Fi 6, and what to do if your smartphone can't detect the 5 GHz network. Finally, you'll find a compatibility chart for popular phone models and Wi-Fi standards.

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Why is it important to know your phone's Wi-Fi standard?

Modern routers support several wireless communication standards at once: from the outdated 802.11g (maximum 54 Mbps) to the latest 802.11ax (Wi-Fi 6/6E, up to 9.6 Gbps). But your phone may not physically support the latest versions—and this directly affects:

• 📶 Internet speed: Wi-Fi 5 (802.11ac) 3 times faster Wi-Fi 4 (802.11n).
• 🔋 Battery consumption: Old standards force the Wi-Fi module to work harder.
• 📡 Connection stability: Wi-Fi 6 Better at handling interference in apartment buildings.
• 🔄 Automatic switching: Some phones get stuck on the congested 2.4 GHz network, although they could use the free 5 GHz.

For example, if your router broadcasts two networks - MyWiFi_2G And MyWiFi_5G, and the phone only connects to the first one, this is a sign that it does not support the range 5 GHz. Or vice versa: you pay for a tariff with a speed of 300 Mbps, but because Wi-Fi 4 In reality, you only get 70–80 Mbps.

⚠️ Note: Some budget smartphones (eg. Redmi 9A or Samsung Galaxy A03) support 2.4 GHz onlyThis is a hardware limitation and cannot be fixed with a software update.

Method 1: Checking via Android settings (without apps)

On most phones with Android 8.0 You can find out the current Wi-Fi standard directly in the system settings. The instructions are universal for Samsung, Xiaomi, Honor, Realme and other brands, but the layout of menu items may differ slightly.

Open Settings → Wi-Fi and follow these steps:

1. Connect to your Wi-Fi network (if you are not already connected).
2. Tap on the network name (not the switch!).
3. Scroll down to the block Technical Information or "Additionally".
4. Find the lines Wi-Fi standard, Protocol or Frequency.

Here's what you can see:

• 📌 802.11n - This Wi-Fi 4 (up to 600 Mbps, operates at 2.4 and 5 GHz).
• 📌 802.11ac - This Wi-Fi 5 (up to 3.5 Gbps, 5 GHz only).
• 📌 802.11ax - This Wi-Fi 6 (up to 9.6 Gbps, supports 2.4/5/6 GHz).
• 📌 2.4 GHz or 5 GHz — frequency range (not to be confused with standard!).

If there is no standard information in the settings, but there is a frequency, this is already a hint. For example, if the phone is connected to 5 GHz, it definitely supports at least Wi-Fi 4 (802.11n) or newer.

Check the frequency (2.4 or 5 GHz)

Install a Wi-Fi diagnostic app

Check the phone model specifications on the manufacturer's website.

Update your phone firmware to the latest version-->

Method 2: Engineering menu (for advanced users)

If the system settings do not show the Wi-Fi standard, you can look in engineering menu (Engineer Mode) This method works on most phones Qualcomm Snapdragon or Mediatek, but requires caution - incorrect actions can disrupt the network.

Instructions for Mediatek (For example, Xiaomi Redmi, Realme, Oppo):

1. Open the app Telephone.
2. Enter the combination: ##4636##.
3. Select "Wi-Fi Information"** (Wi-Fi information).
4. Pay attention to the line Wi-Fi standard.

For Qualcomm (For example, Samsung Galaxy, OnePlus):

1. Enter in the phone app: *#0011#.
2. Go to the tab «Wi-Fi»**.
3. Find the parameter PHY Mode - it will show the current standard.

⚠️ Caution: Do not change other settings in the engineering menu unless you know their purpose! This may cause problems with the Wi-Fi module or mobile network.

What should I do if the engineering menu doesn't open?

Some manufacturers block access to Engineer Mode in the latest firmware versions. Alternative options:

1. Use apps like MTK Engineering Mode (only for Mediatek).

2. Install DevCheck or AIDA64 - They show hardware specifications, including Wi-Fi support.

3. Check the model specifications on the website GSMArena or in the documentation.

Method 3: Wi-Fi Diagnostic Apps

If manual methods fail, specialized utilities can help. They not only display the Wi-Fi standard but also analyze signal quality, channel congestion, and even suggest optimal router settings.

Top 3 apps for Android:

• 📱 WiFi Analyzer (from VREM Software) - shows the network standard, signal level and channel occupancy.
• 📱 AIDA64 — in the section Network → Wi-Fi Displays supported standards and frequencies.
• 📱 DevCheck — in the block "Net"** indicates Wi-Fi standards and ranges.

For iPhone The choice is more limited due to iOS limitations, but there is:

• 🍎 Network Analyzer (from Techet) - analyzes networks and shows the frequency (2.4/5 GHz).
• 🍎 WiFi SweetSpots — helps find the best location for the router and displays the network type.

Sample report from AIDA64:

Method 4: Checking on iPhone (iOS limitations)

Apple traditionally limits access to technical information, so iPhone Finding out the Wi-Fi standard is more difficult. However, there are workarounds.

Method 1: Through network settings

1. Open Settings → Wi-Fi.
2. Tap on the icon «i»** next to the name of your network.
3. Look at the line "Frequency"** (2.4 GHz or 5 GHz).

Method 2: By iPhone model

All iPhone, starting from iPhone 11, support Wi-Fi 6 (802.11ax)Older models:

• 📱 iPhone XR/XS/11 — Wi-Fi 5 (802.11ac).
• 📱 iPhone 8/8 Plus/X — Wi-Fi 5 (802.11ac).
• 📱 iPhone 7/7 Plus — Wi-Fi 4 (802.11n) + MIMO.
• 📱 iPhone 6/6S - only Wi-Fi 4 (802.11n).

Method 3: Through diagnostic console (for advanced)

If you have Mac, you can connect iPhone and use Console (Console.app) to view Wi-Fi logs. Look for lines with awdl or airport - they may contain information about the standard.

⚠️ Attention: Starting from iOS 14, Apple hid some technical data about Wi-Fi for security reasons. If your iPhone It doesn't connect to the 5 GHz network. Check your router settings - it might be disabled. 802.11a/n/ac.

Compatibility Chart: Wi-Fi Standards in Popular Smartphones

To avoid guessing whether your phone supports Wi-Fi 6 or 5 GHz, we've collected data on popular models. Please note: even if your smartphone supports Wi-Fi 6, it can connect via Wi-Fi 5, if the router is configured to be compatible with older devices.

Important: Even if your phone supports Wi-Fi 6, it will not work in this mode if your router is not configured for 802.11ax or is using outdated firmware.

What to do if your phone doesn't support the required Wi-Fi standard

If it turns out that your smartphone is limited Wi-Fi 4 or doesn't see the network 5 GHz, don't despair. Here are some ways to optimize your work:

• 🔄 Update your router firmware: New software versions often add support for modern standards.
• 📶 Change your router settings:
  • Disable legacy standards (802.11b) in the wireless network settings.
  • Set the channel width 40 MHz for 5 GHz (if the phone supports it).
  • Turn on WPA3 for better security and speed.
• 🔌 Use a repeater: If your phone doesn't have 5GHz coverage, the repeater can broadcast that network in the 2.4GHz range.
• 📱 Buy an external Wi-Fi adapter: For Android There are USB adapters with support Wi-Fi 6 (OTG required).

If the problem is in the range 5 GHz, check:

• 🔍 Is the mode enabled? n/ac/ax in the router settings.
• 🔍 Is the phone too far from the router (5 GHz is worse at passing through walls).
• 🔍 Is the router in the offline mode? "2.4 GHz only"** (sometimes found in cheap models).

FAQ: Frequently asked questions about Wi-Fi standards on phones

🔍 Why does my phone connect to 2.4 GHz even though my router supports 5 GHz?

This can happen for several reasons:

1. Your phone number does not support 5 GHz (check model specifications).
2. In the router settings 5 GHz mode is disabled or an incompatible standard is installed (for example, only 802.11a).
3. 5 GHz signal too weak (this range penetrates walls worse).
4. The phone has power saving mode enabled, which forced to use 2.4 GHz.

Solution: Check your router settings (turn on 802.11n/ac for 5 GHz) and reboot your phone.

📶 How do I force my phone to use Wi-Fi 6 if it's connected via Wi-Fi 5?

If your phone and router support Wi-Fi 6 (802.11ax), but the connection occurs Wi-Fi 5, try:

1. Update the firmware router to the latest version.
2. Enable the mode in your router settings. 802.11ax (sometimes it is hidden in the section Wireless Mode).
3. Disable legacy compatibility (Legacy Mode).
4. Set the channel width 160 MHz (if supported).

If nothing helps, the problem may be with your phone drivers - check for software updates.

🔋 Is it true that Wi-Fi 6 saves battery life?

Yes, Wi-Fi 6 (802.11ax) optimized for energy efficiency thanks to technology TWT (Target Wake Time)It allows the phone to wake up only at certain times to transfer data, rather than constantly scanning the network. Compared to Wi-Fi 5, savings can reach 20–30% with active use of the Internet.

However, the effect is only noticeable if:

• Both the phone and the router support Wi-Fi 6.
• Feature enabled TWT in the router settings (not all models support this).
• The phone is not under high load (for example, downloading large files).

📱 Is it possible to update the Wi-Fi standard on my phone via firmware?

No, The Wi-Fi standard is determined by the hardware (wireless module). The firmware can add support for new features (for example, improved channel management), but it cannot "update" Wi-Fi 4 to Wi-Fi 6.

The exception is if the manufacturer has artificially blocked some of the module's functions (for example, by disabling 5 GHz to save power). In this case, the custom firmware Maybe unlock hidden capabilities, but this is risky and voids the warranty.

🛠️ How do I check which Wi-Fi standard my router uses?

To find out which standards your router supports:

1. Go to the router's web interface (usually at 192.168.1.1 or 192.168.0.1).
2. Find the section Wireless Settings or Wireless network.
3. View the parameter Wireless Mode or StandardThere may be options:
   • 802.11b/g/n - only Wi-Fi 4 (2.4 GHz).
   • 802.11a/n/ac — Wi-Fi 5 (5 GHz).
   • 802.11a/n/ac/ax — Wi-Fi 6.

You can also find out the standard by the router model on the manufacturer’s website (for example, TP-Link, ASUS, Keenetic).