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Wi-Fi 0 is an informal name for the original 1997 IEEE 802.11 standard, not an official generation. The numbered consumer labels begin with Wi-Fi 1 (802.11b) in 1999. Since then, each generation has changed how wireless networks use radio spectrum and coordinate devices; the latest published generation is Wi-Fi 7, while Wi-Fi 8 remains in development as of October 7, 2026.
What do the 802.11 standards mean?
IEEE 802.11 is the family of technical standards behind Wi-Fi wireless local-area networks. Labels such as 802.11ax identify a specific amendment in that family. The Wi-Fi generation names—Wi-Fi 4, Wi-Fi 5, and so on—are a simpler consumer-facing naming layer, not replacements for the IEEE identifiers.
IEEE’s timeline dates the first 802.11 standard to 1997 and starts its numbered generation sequence with 802.11b, or Wi-Fi 1, in 1999. It does not list an official Wi-Fi 0 generation. In this article, “Wi-Fi 0” means the pre-numbered original standard. The timeline’s years refer to IEEE’s standard history, not necessarily the date products reached every market.
How did Wi-Fi evolve from Wi-Fi 0 to Wi-Fi 7?
The changes were not simply a steady increase in advertised speed. Generations introduced different frequency bands, radio techniques, and ways to handle many devices. The figures below are standard-era or standards-scope rates, not predictions of the internet speed a household device will achieve.
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| Generation and IEEE standard | IEEE timeline year and status | Band or scope described | What changed | Rate figure and what it means |
|---|---|---|---|---|
| Original 802.11 (“Wi-Fi 0,” informal) | 1997; historical | 2.4 GHz | The first IEEE 802.11 Wi-Fi standard; “Wi-Fi 0” is retrospective shorthand, not an official generation. | No rate figure included here. |
| Wi-Fi 1 — 802.11b | 1999; historical | 2.4 GHz | Aimed for higher data rates while addressing interference sources such as microwave ovens, cordless phones, and baby monitors. It did not make 2.4 GHz interference-free. | No rate figure included here. |
| Wi-Fi 2 — 802.11a | 1999; historical | 5 GHz; 20 MHz bandwidth | Introduced a multi-carrier modulation scheme for high data rates, using a different band from 802.11b. | No rate figure included here. |
| Wi-Fi 3 — 802.11g | 2003; historical | 2.4 GHz | Used OFDM multi-carrier modulation and other enhancements in the same band as 802.11b. | Up to 54 Mbit/s in the IEEE timeline; a standard-era maximum, not user throughput. |
| Wi-Fi 4 — 802.11n | 2009; historical | 2.4 and 5 GHz | Expanded wireless capability enough to substitute for wired networks in some uses, according to IEEE. | Up to 600 Mbit/s in the IEEE timeline; not a guarantee for an individual connection. |
| Wi-Fi 5 — 802.11ac | 2013; historical | Not stated in the cited IEEE timeline summary. | Highlighted multiple-input/multiple-output (MIMO), using multiple antennas at both sending and receiving devices to reduce errors and raise speed. | Not stated in the cited IEEE timeline summary. |
| Wi-Fi 6 — 802.11ax | 2021; historical | The IEEE catalog describes a band range; actual use depends on regional spectrum authorization and device support. | Improved aggregate throughput for data-heavy uses such as video and cloud access. | 9.6 Gbit/s in the IEEE timeline; a theoretical/standardized maximum, not expected per-device household performance. |
| Wi-Fi 7 — 802.11be | Published July 22, 2025; published standard | Standard scope: carrier frequencies from 1 to 7.250 GHz; the amendment specifies backward compatibility and coexistence with legacy devices in 2.4, 5, and 6 GHz. | Called Extremely High Throughput (EHT); includes a mode for improved worst-case latency and jitter. | At least one specified mode is capable of at least 30 Gbit/s at the MAC data service access point under the standard’s conditions—not typical internet speed. |
| Wi-Fi 8 — P802.11bn | Draft under development as of October 7, 2026 | Draft scope: 1 to 7.250 GHz, with backward compatibility and coexistence described. | Called Ultra High Reliability (UHR); targets reliability, latency, packet loss, power consumption, peer-to-peer operation, and transitions between basic service sets. | Draft requirements include selected-mode gains relative to EHT in specified scenarios; see the Wi-Fi 8 section below. |
Wi-Fi 0 through Wi-Fi 3: the early standards
The first standard in 1997 established 802.11 Wi-Fi in the 2.4 GHz band. Wi-Fi 1, 802.11b, followed in 1999 with a focus on higher data rates and interference sources common to that band. Also dated 1999 by IEEE, Wi-Fi 2 (802.11a) moved to 5 GHz and used a multi-carrier modulation approach. Wi-Fi 3 (802.11g) brought OFDM to 2.4 GHz and had a timeline-listed maximum of 54 Mbit/s.
Wi-Fi 4 and Wi-Fi 5: broader capability and multiple antennas
Wi-Fi 4 (802.11n) operated in both 2.4 and 5 GHz and reached a timeline-listed rate of up to 600 Mbit/s. IEEE described the increase as allowing WLANs to replace wired networks in some use cases—not as making all wireless links equivalent to wired connections.
Wi-Fi 5 (802.11ac) brought MIMO into focus: multiple antennas on both ends of a connection can reduce errors and increase speed. This illustrates a broader trend: later standards improve how radios use spectrum and coordinate communication, rather than relying only on a higher headline rate.
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Wi-Fi 6: more aggregate capacity
Wi-Fi 6 (802.11ax) is associated with a 9.6 Gbit/s theoretical or standardized maximum in IEEE’s timeline. That figure is not the expected speed of one device in a home. The standard’s design emphasis includes improving total network throughput for data-heavy uses, such as video and cloud access. A band listed in a standard also does not mean every device can use it everywhere: local spectrum rules and hardware support matter.
Wi-Fi 7: the latest published generation
IEEE’s working-group page reports that 802.11be-2024, known as Wi-Fi 7, was published on July 22, 2025. IEEE classifies it as Extremely High Throughput. Its standards catalog specifies at least one mode capable of at least 30 Gbit/s at the MAC data service access point, along with a mode intended to improve worst-case latency and jitter. These are capabilities defined for the standard under stated conditions, not a promise that a retail router, client device, or internet plan will deliver those figures.
IEEE also specifies backward compatibility and coexistence with legacy devices in the 2.4, 5, and 6 GHz bands. That lets older devices continue to connect where supported, but it does not give them Wi-Fi 7 capabilities.
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What is the difference between Wi-Fi 6, Wi-Fi 7, and Wi-Fi 8?
Wi-Fi 6 is a published standard focused in part on aggregate throughput. Wi-Fi 7 is a published standard that expands the specified performance scope and includes a low-latency mode. Wi-Fi 8 is a draft whose central aim is more reliable operation, not merely a larger peak-rate number.
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- Wi-Fi 6 (802.11ax): Published generation; IEEE’s timeline lists 9.6 Gbit/s as a theoretical/standardized maximum. Actual performance depends on the network, devices, and conditions.
- Wi-Fi 7 (802.11be): Published July 22, 2025. IEEE specifies at least one mode capable of at least 30 Gbit/s at the MAC data service access point under the standard’s conditions, plus an improved worst-case latency and jitter mode.
- Wi-Fi 8 (P802.11bn): Draft under development. Its UHR objectives include throughput, latency, and packet-loss requirements for selected modes and defined scenarios; they are not guaranteed gains for every device or home.
What is Wi-Fi 8 designed to improve?
IEEE calls P802.11bn Ultra High Reliability. Its draft description compares selected UHR modes with EHT operation and sets targets for specific conditions: a 25% throughput gain at a specified signal-to-interference-and-noise ratio, 25% lower 95th-percentile latency, and 25% lower MAC protocol data unit loss in a given scenario. The draft particularly identifies transitions between basic service sets as a relevant case.
These percentages describe draft requirements for selected modes and scenarios, not measured consumer-product results or guaranteed household improvements. The draft also covers access-point power-consumption reduction, peer-to-peer operation improvements, operation from 1 to 7.250 GHz, and backward compatibility and coexistence with legacy devices.
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Is Wi-Fi 8 available yet?
No—not as a completed IEEE standard. In its September 2026 update, the IEEE 802.11 Working Group reported that the P802.11bn task group had passed an initial working-group ballot on Draft 2.0, received more than 8,000 comments, and begun resolving them. The group also approved making the draft available for sale. Those are steps in standards development, not final approval or confirmation that Wi-Fi 8-certified consumer products are available. The project remains under development as of October 7, 2026; future schedule estimates can change.
Will a new Wi-Fi router work with older devices?
IEEE specifies backward compatibility and coexistence with legacy devices for 802.11be (Wi-Fi 7), and the P802.11bn draft also describes compatibility and coexistence. In practice, an older device can connect only if the router and device share a supported standard, band, and security configuration. The older device continues to use its own capabilities; a new router cannot turn it into a newer-generation client.
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How to read Wi-Fi speed claims
Maximum-rate numbers are useful for understanding standards, but the measurement point matters. IEEE’s Wi-Fi 7 figure is specified at the MAC data service access point in at least one mode; Wi-Fi 6’s 9.6 Gbit/s is a theoretical/standardized maximum in the timeline. Neither should be read as the speed a single phone or laptop will receive from a broadband connection.
- Standard capability: A requirement or mode the standard defines under particular conditions.
- Device link rate: The rate supported by a particular router-client connection; it depends on both devices and the radio environment.
- Useful application throughput: Data available to an app after network overhead, contention, distance, interference, and other constraints.
- Internet speed: Also limited by the broadband plan and the route beyond the local Wi-Fi network.
For buying or upgrading decisions, confirm that both the router and the devices you care about support the desired generation and bands. Check local spectrum availability, and weigh the actual bottleneck—coverage, congestion, client hardware, or broadband service—rather than assuming a new router alone delivers a standard’s maximum rate.
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