Every few years a new Wi-Fi generation arrives promising to be "much faster". In reality, the increase in peak speed is rarely what you notice day to day. What matters more is how the new standard handles density: many devices competing for airtime in the same space.
Here are the last four generations, explained in terms you can use to make a purchase decision.
| Wi-Fi 5 | Wi-Fi 6 | Wi-Fi 6E | Wi-Fi 7 | |
|---|---|---|---|---|
| Technical name | 802.11ac | 802.11ax | 802.11ax | 802.11be |
| Year in common use | 2014 | 2019 | 2021 | 2024 |
| Frequency bands | 5 GHz | 2.4 & 5 GHz | 2.4 / 5 / 6 GHz | 2.4 / 5 / 6 GHz |
| Maximum channel width | 80 MHz | 160 MHz | 160 MHz | 320 MHz |
| Many-device efficiency | Limited | Good (OFDMA) | Good | Very good |
| Device power saving | - | Yes (TWT) | Yes | Yes |
| Security | WPA2 | WPA3 | WPA3 required | WPA3 required |
Wi-Fi 5: a baseline that still holds up
Wi-Fi 5 introduced the 5 GHz band as the primary lane and brought a big jump over the previous generation. Most devices in circulation today still support it well.
Its limits appear when many devices are connected. Wi-Fi 5 serves devices in turn; one slow device can hold up the queue for the others. In a home with five devices you won't notice. In a home with twenty, this is the main source of the "sometimes fine, sometimes stuck" complaint.
Wi-Fi 6: the upgrade you actually feel
Wi-Fi 6 is the generation that delivers the most real benefit to a modern household. Three of its technologies are worth knowing:
- OFDMA splits one channel into sub-channels, so the router can serve several small devices within a single transmission slot. This is why Wi-Fi 6 feels far more stable in a device-heavy home.
- Target Wake Time lets devices agree a wake schedule, so sensors and smart home devices can sleep longer and their batteries last.
- WPA3 arrives as the accompanying security standard, fixing long-standing weaknesses in the key exchange process.
One thing to be clear about: Wi-Fi 6 does not increase your internet speed. If your plan is 50 Mbps, that limit still applies. What changes is how evenly and consistently that capacity is shared.
Wi-Fi 6E: new, uncrowded space
Wi-Fi 6E isn't a new standard, it's Wi-Fi 6 permitted to operate in the 6 GHz band. The practical difference is simple: this band is still relatively empty, so it isn't competing with neighbouring networks, Bluetooth devices, or microwave ovens.
The consequence is equally simple: higher-frequency waves penetrate walls more poorly. Wi-Fi 6E gives its best results within a single room, or as backhaul between mesh nodes in line of sight.
Regulatory note: the availability of the 6 GHz band for Wi-Fi differs between countries. Make sure any device you buy is intended for the Indonesian market and properly certified, so the bands it offers match local rules.
Wi-Fi 7: for needs that aren't yet common
Wi-Fi 7 brings three main changes:
- 320 MHz channels: twice the channel width of Wi-Fi 6E, enabling very high peak throughput at close range.
- Multi-Link Operation: a device can use two bands at once, say 5 GHz and 6 GHz, reducing latency and keeping the connection alive when one band is disrupted.
- 4096-QAM: packs more data into every signal, effective only under very good signal conditions.
Who actually feels it? Users on plans above 500 Mbps, homes with long-range wireless mesh backhaul, and latency-sensitive applications like competitive gaming or remote video production. For everyday use, the difference is hard to detect.
Understanding the three frequency bands
Debates about Wi-Fi generations get much easier once you grasp one basic concept: the inverse relationship between frequency, speed, and range.
| Band | Speed | Range | Congestion | Best for |
|---|---|---|---|---|
| 2.4 GHz | Lowest | Furthest | Very crowded | Smart devices, sensors, distant rooms |
| 5 GHz | High | Medium | Moderate | Laptops, phones, TV in the main room |
| 6 GHz | Highest | Shortest | Very open | Devices in the same room as the router |
The higher the frequency, the more data it can carry, but the more easily walls absorb it. No band is "best"; there is only the right band for each device and its location.
Compatibility across generations
The worry that comes up most often when considering an upgrade is what happens to older devices. The good news is that every Wi-Fi standard is designed to be backward-compatible. A Wi-Fi 7 router still serves a Wi-Fi 5 phone without trouble, that phone simply works at the speed of its own generation.
What's worth watching is the reverse: older devices that occupy the air for a long time can hold up newer devices on the same network. This is exactly why Wi-Fi 6 with OFDMA gives a real improvement in homes that mix old and new hardware.
Turning this into a decision
If you want a single sentence of guidance: Wi-Fi 6 is the sweet spot for the majority of Indonesian households in 2026. It solves the device-density problem, brings WPA3, and its price has fallen a long way since launch.
Wi-Fi 6E makes sense if you live somewhere dense with dozens of neighbouring networks. Wi-Fi 7 makes sense if your plan is very fast and your main devices already support it. Outside those two cases, the extra money is better spent on a second access point.
When to upgrade
| Your current situation | Recommendation |
|---|---|
| Wi-Fi 4 or early Wi-Fi 5 router, frequent drops | Move to Wi-Fi 6, the biggest felt improvement |
| Stable Wi-Fi 5, fewer than 10 devices | Not urgent |
| Many smart devices, inconsistent connection | Wi-Fi 6 with OFDMA |
| Dense with neighbouring networks | Wi-Fi 6E, to use the 6 GHz band |
| Plan >500 Mbps and new devices | Wi-Fi 7 starts to make sense |
| The problem is coverage, not speed | Add an access point, don't change generation |
A principle that's rarely wrong: sort out placement and the number of access points first. A new standard cannot fix a router kept inside a cupboard.
Continue to the guide to choosing a router or diagnosing slow Wi-Fi.
Frequently asked questions
Will Wi-Fi 6 make my internet faster?
For a single device on its own, the improvement is small. Wi-Fi 6's main benefit shows up when many devices are active at once, because the router can serve several of them within a single time slot.
Is a Wi-Fi 6 router compatible with older phones?
Yes. Every Wi-Fi standard is designed to be backward-compatible. Older devices still connect, at the speed of their own generation.
What's the advantage of the 6 GHz band in Wi-Fi 6E?
The 6 GHz band is still relatively empty, so it's free of interference from neighbours and legacy devices. The trade-off is that it has the shortest range and is blocked most easily by walls.
