Last year, the IEEE 802.11be standard—more widely known as Wi-Fi 7—was officially adopted. This new wireless networking technology delivers performance comparable to 5G mobile networks in many ways—but can it truly replace 5G indoors?
Some industry players have labeled Wi-Fi 7 as the most significant advancement in wireless networks over the past two decades—a bold statement, but one that seems justified by the numbers.
Theoretical peak speeds have increased fivefold, reaching 46 gigabits per second. Of course, the emphasis here is on “theoretical”: achieving this speed requires optimal conditions, such as full device compatibility, ideal placement of access points, and the absence of interfering radio sources.
Advancing Technology
This speed boost comes from several technological improvements. One key enhancement is the ability to aggregate data transmission channels. Each frequency band (2.4 GHz, 5 GHz, and 6 GHz—see the table) is divided into 20 MHz channels, allowing independent communication. The 6 GHz band can accommodate up to 60 channels, and Wi-Fi 7 enables these to be combined into a single 320 MHz channel.
Another major innovation is multi-link operation, which allows network devices to communicate simultaneously on multiple frequencies, significantly reducing latency. Modulation has also evolved—this is the process that converts digital data into radio waves. Wi-Fi 7 uses 4K-QAM modulation, packing 12 bits instead of 10, which translates to a 20% increase in data per transmission.
Wi-Fi 7 also builds on MIMO (multiple input, multiple output) capabilities. MIMO enables access points to communicate with multiple endpoints on the same frequency simultaneously. The new standard supports 16×16 MIMO, meaning it can connect with up to 16 devices per frequency at once, provided enough antennas are available.
Speed Isn’t Everything
These features make Wi-Fi 7 comparable to 5G mobile technology in many ways—at least for indoor use. 5G offers a maximum data transmission speed of 10 gigabits per second, and its latency (ranging from 1 to 10 milliseconds) can sometimes outperform Wi-Fi 7. Both technologies use MIMO to efficiently serve multiple endpoints.
However, 5G has a significant advantage in range. While Wi-Fi 7 requires direct line-of-sight or close proximity (typically within 15 meters) for optimal speed and functionality, 5G can operate over much greater distances—although higher speeds still require closer proximity to a cell tower.
Given their similarities, a key question arises: Can Wi-Fi 7 replace private 5G networks? The answer depends on various factors. The suitability of each technology depends on the specific use case and environment.
One key factor is speed. 5G’s combination of high speed and low latency makes it ideal for video conferencing, online gaming, AR/VR applications, and real-time data collection in industrial settings. Meanwhile, Wi-Fi 7’s potentially higher data transfer capability allows for 8K video streaming and ultra-fast file transfers—if used within short distances.
Top Marks for Reliability
Network efficiency and reliability are critical, especially for business-critical applications. Both technologies perform well in this regard.
5G improves efficiency with beamforming and network slicing. Beamforming directs signals toward receiving devices, while network slicing creates virtual networks that can be customized for specific needs (e.g., adjusting latency or speed for different applications).
Comparison of Wi-Fi Standards
| Wi-Fi Version | Wi-Fi 5 | Wi-Fi 6 | Wi-Fi 7 |
|---|---|---|---|
| Year Introduced | 2013 | 2019 | 2024 |
| IEEE Standard | 802.11ac | 802.11ax | 802.11be |
| Max Speed | 3.5 Gbps | 9.6 Gbps | 46 Gbps |
| Frequencies | 2.4 GHz, 5 GHz | 2.4 GHz, 5 GHz | 2.4 GHz, 5 GHz, 6 GHz |
| Multi-Link Operation | No | No | Yes |
| Security | WPA2 | WPA3 | WPA3 |
| Channel Size | 20, 40, 80, 80+80, 160 MHz | 20, 40, 80, 80+80, 160 MHz | 20, 40, 80, 80+80, 160, 320 MHz |
| Modulation | 256-QAM OFDMA | 1024-QAM OFDMA | 4096-QAM OFDMA |
| MIMO | 4×4 MIMO, DL MU-MIMO | 8×8 UL/DL/MU-MIMO | 16×16 MU-MIMO |
Source: Netgear.com
Wi-Fi 7’s multi-link operation not only boosts speed but also reduces traffic congestion, making it particularly useful in high-density environments like stadiums or conferences where multiple devices compete for bandwidth.
In terms of reliability, 5G networks can achieve latency as low as 1 millisecond, making them suitable for mission-critical applications like autonomous vehicles, remote surgery, and industrial automation. These applications require stable performance over larger areas, such as entire factories or industrial sites.
Wi-Fi 7 offers comparable reliability but is optimized for smaller areas, typically within buildings. Unlike previous Wi-Fi versions, it provides a stable connection even in crowded spaces with heavy traffic.
Coexistence Rather Than Competition
Ultimately, Wi-Fi 7 does not replace 5G; rather, it complements it.
To simplify: if you need long-range connectivity, high speed, ultra-low latency, and seamless mobility, 5G is the better choice. This is particularly true for industrial environments, IoT deployments, and the broader implementation of smart technologies.
However, if the goal is to provide high-speed, reliable network access within a smaller area while consuming less power, Wi-Fi 7 is a more reasonable choice. It is ideal for office buildings, sports arenas, airports, and shopping centers. Wi-Fi 7 also excels in consumer applications that require high bandwidth, such as streaming, online gaming, and VR.
5G also holds an advantage in device compatibility. Most smartphones now support 5G, whereas Wi-Fi 7 is currently available mainly on premium devices (e.g., Google Pixel 8 and 9, iPhone 16, Galaxy S24 Ultra, Galaxy S25). However, Wi-Fi 7 adoption is expected to increase over time.
Lastly, cost is a major consideration. Deploying private 5G networks is expensive, but augmenting public 5G networks with indoor solutions (e.g., distributed antenna systems) allows for gradual implementation. This phased approach enables multi-service support or private network capabilities to be built step by step.
