The speed of your home's wireless connection often depends not only on the router's power but also on the receiver's capabilities. Many users purchase expensive plans and top-of-the-line equipment but don't achieve the desired speed because their mobile device physically can't handle data flow above a certain threshold.
Understanding that, What is the WiFi standard? Supporting your device allows you to avoid unnecessary network upgrades. If your router supports Wi-Fi 6 but your phone only runs on Wi-Fi 4, you simply won't be able to take advantage of the new technology, no matter how powerful your local network.
In this article, we'll explore the technical differences between wireless network generations and demonstrate specific methods for determining your smartphone's specifications. You'll learn how to read specifications and use software tools for accurate diagnostics without disassembling the device.
Main generations of wireless networks
The evolution of communication standards has been gradual, with each new stage bringing significant gains in speed and stability. Older devices can operate on new networks, but they will be limited to their maximum performance, creating a so-called "bottleneck."
The modern classification uses simplified names to make it easier for users to navigate. Instead of complex technical designations like 802.11ac or 802.11ax, the numbers 4, 5, and 6 are now commonly used, significantly simplifying equipment selection in stores.
- 📡 Wi-Fi 4 (802.11n) — the basic standard, operating in the 2.4 and 5 GHz ranges, provides speeds of up to 600 Mbps.
- 🚀 Wi-Fi 5 (802.11ac) — operates exclusively in the 5 GHz band, offering speeds of up to several Gbps and MU-MIMO support.
- ⚡ Wi-Fi 6 (802.11ax) — the latest mass standard, optimized for operation in high-density device environments.
It's important to note that support for the 5 GHz band doesn't always mean support for the latest standard. A device may support 5 GHz, but it will only operate on Wi-Fi 4, which significantly limits its potential. The key difference is not the signal frequency, but the version of the data transfer protocol encoded in the chip.
⚠️ Attention: Budget smartphone manufacturers often list 5 GHz support but don't specify the standard version. In such cases, actual speeds can be significantly lower than those advertised in marketing materials.
Checking through Android system settings
The Android operating system doesn't always provide direct information about the protocol version in the standard menu, but indirect indicators can tell a lot to an experienced user. First, pay attention to the "About phone" or "Network status" sections.
Go to Settings → About phone → All specificationsThe processor or Wi-Fi module model is often indicated here. Knowing the exact chipset model, for example, Snapdragon 865 or MediaTek Dimensity is not listed here but implied contextually, you can check the manufacturer's technical documentation on the official website.
A more detailed method is to use the engineering menu or hidden test modes. Enter the code into the dialer. ##4636##If the menu opens, look for "Wi-Fi Information." It may display your current connection standard, such as 11ax or 11ac.
☑️ Android verification algorithm
It is worth considering that the interface may differ depending on the manufacturer's shell. Xiaomi MIUI or Samsung One UI The paths to the settings may vary, so sometimes it's easier to use third-party utilities, which will be discussed below.
Diagnostics on Apple iOS devices
In the Apple ecosystem, transparency is a different matter. The company doesn't provide users with direct access to the technical details of the Wi-Fi module in the default settings. However, the device model automatically dictates the supported standards.
All smartphones iPhone, starting with the model iPhone 6, support the Wi-Fi 4 standard. Models released after iPhone 6s, have already received support for Wi-Fi 5 (AC). Starting from iPhone 11, the devices are equipped with a module that supports Wi-Fi 6.
- 📱 iPhone 11 and newer — guaranteed to support Wi-Fi 6 (802.11ax).
- 📱 iPhone 6s – iPhone XS — operate on the Wi-Fi 5 (802.11ac) standard.
- 📱 iPhone 6 and later — limited to Wi-Fi 4 (802.11n) standard.
To accurately determine the model of your device, go to Settings → General → AboutThe model number can be used to find the exact technical specifications on the Apple Support website, where the Wireless Networks section will list the full list of supported protocols.
Why doesn't my iPhone show connection speed?
Apple hides the technical link speed (PHY rate) in the standard interface to avoid user confusion. Actual speed depends on many factors, including distance to the router and the presence of interference, so displaying the theoretical maximum can be misleading.
Using specialized applications
The most reliable way to find out precise specifications is to use professional software. Network analysis apps read data directly from device drivers, providing a complete picture of what's going on.
One of the best utilities is considered to be Wi-Fi Man from Ubiquiti or WiFi AnalyzerAfter launching the program, go to the device information tab. This will display the current connection standard (Standard) and the maximum supported speed (Max Speed).
Pay attention to the field Link SpeedIf you're connected to a modern router, but your link speed doesn't exceed 72 Mbps or 150 Mbps, your smartphone is most likely operating in Wi-Fi 4 mode. Wi-Fi 5 typically offers speeds of 433 Mbps and higher, while Wi-Fi 6 offers speeds of 1200 Mbps and higher.
| Application | Platform | Key function | Price |
|---|---|---|---|
| Wi-Fi Man | Android / iOS | Detailed information about standards | For free |
| Fritz!App WLAN | Android / iOS | Signal quality analysis | For free |
| WiFi Analyzer | Android | Channel load charts | Free / Pro |
| AirPort Utility | iOS | Network scanner (requires configuration) | For free |
When installing apps from third-party sources, be careful and check permissions. Some apps may request access to your location, as Android's Wi-Fi network scanning relies on location services.
Analysis by processor and chip model
If you can't install an app or find the specifications in the menu, you can use deduction. Each mobile processor (SoC) has a strictly defined set of supported technologies, which remains unchanged throughout the chip's lifecycle.
Find the exact name of your processor (eg. Snapdragon 730, Exynos 9820, Helio G90T). Next, search for "[Processor model] Wi-Fi specs." The official specifications page on Qualcomm, MediaTek, or Samsung's website will provide the exact answer.
For example, if the specification says "802.11ac Wave 2," the device supports Wi-Fi 5. If only "802.11b/g/n" is listed, then Wi-Fi 5 or 6 is out of the question, even if the phone is relatively new. This is a common situation in the budget segment.
⚠️ Attention: Having two antennas (2x2 MIMO) doubles the speed compared to a single antenna (1x1 SISO). Even with the same Wi-Fi 5 standard, a phone with a single antenna will be slower.
Impact of the standard on real speed
Understanding the differences between standards is essential for properly assessing your home network's performance. Theoretical speed is one thing, but actual performance depends on many factors, including the protocol version.
If your router distributes internet at 500 Mbps, but your smartphone only supports Wi-Fi 4, you physically won't be able to get speeds higher than 100-150 Mbps over the air. In this case, upgrading your provider's plan won't have any noticeable effect.
- 📉 Wi-Fi 4 — the real speed ceiling is about 100-150 Mbps under ideal conditions.
- 📈 Wi-Fi 5 — allows you to reach 300-500 Mbps and higher, which is enough for 4K streaming.
- 🚀 Wi-Fi 6 — unlocks the potential of gigabit speeds and reduces latency in games.
It's also worth considering that older standards are less capable of handling multiple devices simultaneously. If you have a smart home with dozens of gadgets, upgrading to Wi-Fi 6 will provide a significant boost in stability, even if your smartphone doesn't support the new standard's maximum speeds.
Frequently Asked Questions (FAQ)
Is it possible to update the Wi-Fi standard on a phone using software?
No, the Wi-Fi standard is determined by the hardware (chip and antennas). No firmware or operating system update will add Wi-Fi 6 support to a device that originally came with a Wi-Fi 4 module. This requires physical replacement of the component, which is not possible in smartphones.
Why does my phone see the 5 GHz network but not connect?
This may be due to channel incompatibility. Some older devices only support the lower 5 GHz band channels (36-64), while the router is configured for the higher ones (149-165). The issue may also lie in the network security type or channel width.
Does a case affect Wi-Fi speed?
Yes, cases with metal inserts or magnetic rings can shield the signal, especially at high frequencies like 5 GHz. If you notice a drop in speed, try removing the case and retesting the connection.
Do I need to change my router if my phone only supports Wi-Fi 4?
Upgrading your router just to keep your old phone isn't necessary, but a new router will provide better stability even with older standards. However, to unlock the full potential of modern equipment and plans, you'll need to upgrade your client devices in the future.