Which Wi-Fi frequency does the iPhone use: 2.4 GHz or 5 GHz? All the details.

Have you ever wondered why your iPhone In modem mode, sometimes it works reliably, then suddenly it slows down? Or why do some devices connect to the shared network without problems, while others stubbornly ignore it? Most often, the problem lies in Wi-Fi frequency, on which iPhone Broadcasts a signal. Apple doesn't publicize this information, but the choice of band affects speed, coverage range, and even battery life.

In this article we will figure out how iPhone Selects the frequency for internet distribution (2.4 GHz or 5 GHz), whether it can be changed manually, and which models support both bands. You'll also learn how to check the current frequency, which devices work better on 5 GHz and which on 2.4 GHz, and how to bypass restrictions. iOS, if the standard settings do not suit you.

Spoiler: iPhone automatically selects the 2.4 GHz band for maximum compatibility, but some models (starting with iPhone 12) may switch to 5 GHz depending on conditions.However, you can't set the range manually—you'll have to use workarounds.

How iPhone Selects a Frequency for Wi-Fi Distribution: The Algorithm

Unlike Android smartphones, where you can often manually specify the range (2.4 or 5 GHz), iOS fully automates this process. The frequency selection algorithm depends on three key factors:

• 📱 iPhone model: old devices (before iPhone 11) distribute Wi-Fi only at 2.4 GHz, while new ones support both ranges.
• 📶 Operator network status: If your mobile internet operates at 5 GHz (e.g. 5G), the system may prefer the same range for Wi-Fi.
• 🔄 Compatibility of connected devices: If gadgets that do not support 5 GHz (such as smart bulbs) are connected to the access point, iPhone forced to switch to 2.4 GHz.

By default iOS uses 2.4 GHz This band provides better coverage and compatibility with most devices, but is slower. For example, when distributing internet at 100 Mbps on 2.4 GHz, the actual throughput will be ~30–50 Mbps, while on 5 GHz you can get up to 80–90 Mbps.

It is important to understand that iPhone is not always tied to one range. For example, iPhone 13 Pro can dynamically switch between 2.4 and 5 GHz if:

• 🔋 Battery level below 20% (the system saves energy by selecting the less resource-intensive 2.4 GHz).
• 📊 The network load is high (for example, when streaming 4K video) iOS will try to use 5 GHz).
• 🔄 There are other 5 GHz networks with a strong signal within range (to avoid interference) iPhone will remain at 2.4 GHz).

⚠️ Attention: Starting from iOS 16, Apple added support Wi-Fi 6 (802.11ax) for distributing the Internet, but only on models iPhone 12 and newer. This means that when connecting compatible devices (e.g. MacBook Pro M1) the speed may increase by 20-30%. However, the range is still selected automatically.

Which iPhone models support 5GHz Wi-Fi hotspots?

Not all iPhone They can distribute internet at a frequency of 5 GHz. Here is a complete list of models that support both bands:

If your iPhone older iPhone 12, it distributes Wi-Fi exclusively on the 2.4 GHz band. This is a hardware limitation—the Wi-Fi chip in these models does not support 5 GHz access point mode.

For models iPhone 12–14 There is support for 5 GHz, but it does not guarantee, that the network will always operate in this range. For example, if a device that only supports 2.4 GHz (e.g., Amazon Echo Dot 2nd generation), the entire network will switch to this range.

How to check what frequency my iPhone uses for Wi-Fi?

Unfortunately, iOS The current frequency of the network being broadcast doesn't appear in the settings. However, there are three reliable ways to find out:

Method 1: Through network analysis on the connected device

If to yours iPhone connected Mac, Android smartphone or Windows PC, you can use built-in tools for network analysis:

• 🖥️ On Mac: Hold Option (⌥) and click on the Wi-Fi icon in the menu bar → in the section PHY Mode a range will be specified (for example, 802.11n 5GHz).
• 📱 On Android: Install the application WiFi Analyzer (For example, NetSpot) and check the frequency of the network you are connected to.
• 🪟 On Windows: Open Command line and enter:

  netsh wlan show interfaces

  In the line Radio type a range will be specified (for example, 802.11ac 5GHz).

Method 2: Via network name (SSID)

iOS by default does not add suffixes to the network name (eg _2G or _5G), but if you change the access point name manually, you can indirectly determine the frequency:

1. Go to Settings → Personal Hotspot → Wi-Fi Password.
2. Add a suffix to the network name (eg. iPhone_5G).
3. If devices that do not support 5 GHz do not see this network, it means that iPhone distributes Wi-Fi at a high frequency.

Method 3: Using third-party applications (for advanced users)

Apps like AirPort Utility (from Apple) or Fing can display detailed network information, including frequency. However, this requires:

• 🔧 Enable Developer mode on iPhone (through Settings → General → Build number, tap 5 times).
• 📊 Use Mac with installed Xcode for traffic analysis.

⚠️ Attention: If your iPhone It distributes Wi-Fi at 5 GHz, but the connected devices work slowly, the problem may be in channelAutomatic channel selection in iOS Not always optimal. Try manually setting channel 36, 40, or 44 (they are less susceptible to interference).

Check connected devices for 5GHz compatibility|

Restart your iPhone and turn on Personal Hotspot again|

Try connecting to the network from another gadget|

Update iOS to the latest version-->

Is it possible to manually select 2.4 or 5 GHz frequency on iPhone?

No, in the standard settings iOS There is no option to manually select the frequency. Apple deliberately hides this feature, citing optimization of the user experience. However, there are workarounds:

Workaround 1: Force 2.4GHz to be disabled on connected devices

If you need only 5 GHz, you can:

1. Connect to iPhone device that does not support 2.4 GHz (For example, MacBook Pro 2020+ or iPad Pro).
2. In the settings of this device disable 2.4 GHz support (if there is such an option).
3. iPhone will automatically switch to 5 GHz since there are no other options left.

Workaround 2: Using third-party software (for jailbreak)

If on yours iPhone jailbreak is installed, you can use tweaks like TetherMe or MyWi, which allow:

• 🔄 Force frequency (2.4 or 5 GHz).
• 📶 Change the network name (SSID) depending on the range.
• 🔋 Optimize battery consumption when sharing Wi-Fi.

However, remember that jailbreak voids the warranty and may lead to unstable system operation.

Workaround 3: Alternative methods for distributing the Internet

If 5GHz is critical for you, consider these options:

• 📶 USB modem: Connect iPhone to the computer via cable and distribute the Internet through Settings → Personal Hotspot → Allow other devices to use the hotspot (USB is usually faster than Wi-Fi).
• 🔗 Bluetooth modem: The speed is lower, but more stable than at 2.4 GHz.
• 🌐 External router: Connect iPhone to a portable router (for example, TP-Link M7350) and set up distribution on the desired frequency.

2.4 GHz vs. 5 GHz: Which is Better for Sharing with iPhone?

The choice between ranges depends on your needs. Here's a comparison table:

Parameter	2.4 GHz	5 GHz
Speed	Up to 50–70 Mbps	Up to 200–400 Mbps (on Wi-Fi 6)
Coverage range	Up to 50–70 meters (indoors)	Up to 20–30 meters (depending heavily on obstacles)
Penetration through walls	Good	Weak (signal weakened by obstacles)
Interference from other networks	High (many devices operate at 2.4 GHz)	Low (less crowded range)
Battery consumption	Short	High (15-20% more)
Compatibility	Supports all devices	Old gadgets (before 2015) are not supported.

When to choose 2.4 GHz:

• 🏠 You need coverage over a large area (for example, a country house).
• 🔌 Devices without 5 GHz support (smart devices, old laptops) are connected.
• 🔋 It is important to save battery power.

When to choose 5 GHz:

• 🎮 Need high speed (online gaming, 4K streaming).
• 📱 All connected devices are modern (manufactured after 2018).
• 🏢 There are many 2.4 GHz networks in the area (for example, in the office).

How to improve the speed and stability of Wi-Fi sharing on iPhone?

Even if you can't manually select a frequency, there are ways to optimize your access point's performance:

1. Optimize your Wi-Fi channel

Although iOS Automatically selects a channel, but it's not always ideal. To reduce interference:

• 📊 Use apps like WiFi SweetSpots (For iOS) or NetSpot (For Mac) to find the least loaded channel.
• 🔄 If your iPhone distributes the network on 2.4 GHz, select channels 1, 6 or 11 - they do not intersect with others.
• 📶 On 5 GHz, channels are preferred 36–48 (DFC) or 149–165 (if supported).

2. Limit the number of connected devices

Each new device reduces the speed by 10-30%. The optimal amount for stable operation is 3-5 gadgetsTo manage connections:

1. Go to Settings → Tethering.
2. Click on the connected device and select Forget this device.
3. Enable the option Maximum compatibility (if any) to limit the speed for older devices.

3. Configure DNS to speed up your internet

By default iPhone uses your carrier's DNS, which can be slow. To change it:

1. Go to Settings → Wi-Fi → (i) next to the network name.
2. In the section DNS enter:

   1.1.1.1, 1.0.0.1

   (Cloudflare) or

   8.8.8.8, 8.8.4.4

   (Google).
3. Reboot iPhone.

4. Disable background tasks

When distributing Wi-Fi iOS continues to update apps and sync data, which eats up bandwidth. To avoid this:

• 📱 Turn on Airplane mode, then manually activate Wi-Fi And Cellular communication.
• 🔄 Turn it off Background app refresh V Settings → General.
• 📎 Pause downloads in App Store And iCloud.

⚠️ Attention: If you are distributing the Internet with iPhone on Mac or PC, disable automatic OS updates. For example, Windows 10/11 It can download gigabytes of updates in the background, which will clog up the channel.

Why is the upload speed lower than the mobile internet speed?

Even if yours iPhone Connected to 5G at 300 Mbps, when distributing via Wi-Fi, some of the bandwidth is lost on:

- Data processing by the processor iPhone (especially on older models).

- Interference in the air (other networks, microwaves, Bluetooth devices).

- Wi-Fi protocol limitations (e.g. 802.11n at 2.4 GHz the maximum gives ~150 Mbps "over the air", but in reality it is 50–70 Mbps).

Common problems and their solutions

Wi-Fi distribution with iPhone may be accompanied by problems. Here's how to solve them:

Problem 1: Devices don't see the network shared by the iPhone

Possible causes and solutions:

• 🔍 Network hidden: IN iOS There's no option to hide the SSID, but if you changed the network name to Cyrillic or emoji, some devices may not see it. Use only Latin characters and numbers.
• 📵 Frequency incompatibility: If iPhone The device only supports 2.4 GHz (and vice versa). The solution is to connect a compatible device or use an alternative distribution method (USB/Bluetooth).
• 🔋 Energy Saving: On some models (iPhone SE 2020, iPhone XR) When the battery is low, Wi-Fi sharing is disabled. Connect the charger.

Problem 2: Slow speed or dropped connections

Check the following:

• 📶 Mobile network signal level: If you have iPhone Only 1-2 divisions of connection, the transmission speed will be low. Try moving closer to the tower or turn on 4G instead of 5G (sometimes 4G is more stable).
• 🔄 Channel congestion: If there are more than 5 devices connected to the access point, disconnect the extra ones.
• 🛠️ Software failure: Reboot iPhone, then turn on the modem mode again. If that doesn't help, reset it. Network settings (Settings → General → Move or reset).

Problem 3: iPhone overheats when using Wi-Fi

Sharing the internet is a resource-intensive task, especially at 5 GHz. To reduce heat:

• 🔋 Remove the case (it may block the heat dissipation).
• 📉 Limit the number of connected devices to 2-3.
• 🌡️ Switch to 2.4 GHz (if possible) - this range puts less load on the processor.
• ❄️ Use an external battery with cooling (for example, Anker PowerCore).

Problem 4: The operator blocks Wi-Fi distribution

Some plans limit or completely prohibit internet tethering. How to check:

1. Open Settings → Cellular → Data Options → Cellular Data.
2. Check if the item is enabled Internet Sharing.
3. If the option is missing or greyed out, contact your operator.

Workarounds:

• 🔄 Turn on Modem mode through USB (some operators block only Wi-Fi).
• 📶 Use a VPN (for example, ProtonVPN) - sometimes this bypasses the restrictions.

FAQ: Answers to frequently asked questions

Can I share 5GHz Wi-Fi on the iPhone 11?

No, iPhone 11 (including Pro And Pro Max) distributes Wi-Fi only at 2.4 GHz. Support for 5 GHz modem mode appeared only in iPhone 12 and newer.

Why is my iPhone 13 using 2.4GHz Wi-Fi even though connected devices support 5GHz?

This is normal behavior. iOSThe system selects 2.4 GHz by default for maximum compatibility. To force switching to 5 GHz, disconnect all devices except one modern one (e.g., MacBook or iPad Pro), and restart the modem mode.

How to increase the Wi-Fi range of an iPhone?

If you need a larger coverage radius:

1. Use 2.4 GHz (it goes through walls better).
2. Connect an external antenna (eg. Alfa Wi-Fi Camp Pro 2) via adapter Lightning/USB-C (requires jailbreak or special software).
3. Place it iPhone in the center of the room, away from metal objects and microwaves.

Is it possible to change the network name (SSID) and password when sharing from an iPhone?

Yes, but with restrictions:

1. Go to Settings → Personal Hotspot → Wi-Fi Password.
2. Change the network name (maximum 32 characters, Latin letters and numbers only).
3. Set a password (minimum 8 characters).

Please note: After changing the settings, all connected devices will be disconnected.

Why don't some websites work when sharing Wi-Fi from an iPhone?

This may be due to:

• 🔒 Operator blocking: Some websites (such as torrents or VPN services) may be blocked at the mobile network level.
• 📡 DNS issues: Try changing DNS to 1.1.1.1 or 8.8.8.8 (instructions above).
• 🛡️ Traffic filtering: Enable VPN on the connected device.