The Edit — Tech
Deco S4 vs X55: Is TP-Link's Wi-Fi 6 Mesh Worth It?
One maker, two mesh systems, two generations apart. The older one carries 29,512 ratings at 4.5 and the newer one 13,208 at 4.4, which is close to a controlled experiment on whether the generation number matters.
This guide is research-led: we have not handled these units ourselves. If you buy through our links we may earn a commission — it never changes a pick.Research-led, nothing handled. We may earn from links; it never changes a pick. How we choose
This compares two published specifications from one maker against what owners report, on the method in how we choose, and the pairing is unusually clean: same brand, same node count, two generations apart. Nothing here was installed.
TP-Link Deco S4 Mesh AC1900 Wi-Fi System, 3-Pack
Good fit Coverage is the problem rather than peak speed
Not for The house has 30-plus connected devices
TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
Good fit A busy household of phones, tablets and smart devices
Not for Every device you own is several years old
Tenda Nova MW6 Mesh Wi-Fi System
Good fit A larger house with thick internal walls
Not for You want current-generation hardware
NETGEAR Orbi 770 Series Wi-Fi 7 Mesh System, 3-Pack
Good fit A very large house and a multi-gigabit line
Not for You are buying the generation number
Placement matters more than the Wi-Fi generation
| System | Standard | Rating | Ratings |
|---|---|---|---|
| TP-Link Deco S4 | Wi-Fi 5 | 4.5 | 29,512 |
| Deco X55 | Wi-Fi 6 | 4.4 | 13,208 |
| Tenda Nova MW6 | Wi-Fi 5 | 4.2 | 9,050 |
| NETGEAR Orbi 770 | Wi-Fi 7 | 4.1 | 935 |
Owners respond to coverage more than to the Wi-Fi number: the Wi-Fi 5 Deco S4 rates 4.5 and the Wi-Fi 7 Orbi 770 rates 4.1. Newer systems also carry early-firmware problems in owner reports.
Coverage is a placement and backhaul problem, so plan where each unit goes before paying for a newer standard.
What Wi-Fi 6 actually adds, and when you feel it
Wi-Fi 6 does not make a single download faster in any way most households notice. What it adds is efficiency: techniques that let an access point talk to many devices in the same airtime rather than serving them one after another.
So the benefit scales with device count, not with speed. A house with 8 connected things will not feel it. A house with a doorbell, thermostats, speakers, bulbs, televisions, consoles and a phone per person will.
Count the devices before comparing anything else. That single number decides this comparison more reliably than any figure on either box.
TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
13,208 ratings at 4.4, and what Wi-Fi 6 actually buys is many devices at once rather than a faster single download.
Current price shown on Amazon. We may earn a commission.
| Standard | Wi-Fi 6, AX3000 |
|---|---|
| Strength | Many devices without contention |
| Nodes | 3 |
13,208 ratings on Wi-Fi 6, which is the generation whose benefit a busy household actually experiences: many devices at once without each one degrading the others.
If you are replacing hardware anyway, this is the sensible place to land. It is current enough to last and cheap enough not to be a bet on devices you do not own yet.
Buy it if
- A busy household of phones, tablets and smart devices
- You are replacing hardware anyway
Don't buy it if
- Every device you own is several years old
Neither stated speed is reachable
AC1900 and AX3000 are the sum of the theoretical maximums of every band added together. No single device connects to all bands at once, so the figure describes a condition that cannot occur.
The harder ceiling is the line into the building. A 300 megabit connection is fully served by Wi-Fi 5 hardware, and no router makes a line faster than what arrives.
That is why the honest reasons to upgrade are coverage, device count, or failed hardware. A generation number is not one of them, and what Wi-Fi 6, 6E and 7 change works through what each actually adds.
TP-Link Deco S4 Mesh AC1900 Wi-Fi System, 3-Pack
4.5 across 29,512 ratings on Wi-Fi 5, more than twice the evidence behind the newer system and a tenth of a point above it.
Current price shown on Amazon. We may earn a commission.
| Standard | Wi-Fi 5, AC1900 |
|---|---|
| Nodes | 3 |
| Evidence | 29,512 ratings |
29,512 ratings is the deepest record of the four, and 4.5 puts it top on rating too, on a generation that is now two behind.
For a house where the problem is a dead spot upstairs rather than contention between 30 devices, this is the better purchase on the evidence available. Coverage is decided by node placement, and nodes are the same on both systems.
Buy it if
- Coverage is the problem rather than peak speed
- Your line is under about 300 megabits
Don't buy it if
- The house has 30-plus connected devices
Backhaul is the specification neither name mentions
Both of these are dual-band, which means node-to-node traffic shares a radio with your devices. Every hop costs throughput.
A tri-band system reserves a radio for that traffic and keeps it off your devices. Wired backhaul beats both: if any ethernet exists between floors, using it removes the wireless hop entirely.
That is the upgrade worth making before either of these, and it is free if the cable is already in the wall. A 3-node mesh on wired backhaul behaves like 3 independent access points.
Tenda Nova MW6 Mesh Wi-Fi System
9,050 ratings on a system sold by bedroom count rather than by standard, which is closer to how people shop.
Current price shown on Amazon. We may earn a commission.
| Sold on | 4 to 6 bedroom coverage |
|---|---|
| Standard | Wi-Fi 5, AC1200 |
| Watch | Coverage claims are optimistic |
9,050 ratings on a system sold by bedroom count rather than by standard, which is more honest about what a buyer is actually purchasing.
Coverage claims are optimistic across this whole category. Treat a stated bedroom count as a best case in an open-plan building, and expect thick internal walls to cost you a node.
Buy it if
- A larger house with thick internal walls
- Budget is the deciding factor
Don't buy it if
- You want current-generation hardware
NETGEAR Orbi 770 Series Wi-Fi 7 Mesh System, 3-Pack
Wi-Fi 7 and 4.1, the lowest score of the four, which is the clearest argument against buying a generation number.
Current price shown on Amazon. We may earn a commission.
| Standard | Wi-Fi 7 |
|---|---|
| Coverage | 8,000 sq ft, stated |
| Rank here | Lowest rated of 4 |
Wi-Fi 7 and 4.1, the lowest owner rating of the four across 935 ratings, which is the clearest version of this page’s argument.
New standards carry early-firmware problems and the reports reflect that rather than the radio design. It is the right purchase for a large house on a multi-gigabit line and the wrong one if the reason is that the number is higher.
Buy it if
- A very large house and a multi-gigabit line
Don't buy it if
- You are buying the generation number
Deco S4 vs X55: how to choose
Count the connected devices in the house. Under roughly 25, buy the S4 and spend the difference on placement or a cable. Above it, the X55 earns the gap.
Then check whether ethernet runs between floors before buying either, because wired backhaul does more than a generation upgrade. The full breakdown of what each generation adds is in Wi-Fi 6, 6E and 7.
Prices, savings and deal badges are Amazon's own, read from Amazon within the last hour. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Keep reading
Explainer
Wi-Fi 6 vs Wi-Fi 7 Mesh: Is the Upgrade Worth It?The best-rated mesh system here runs Wi-Fi 5, and the Wi-Fi 7 flagship scores lowest.
Explainer
Smart Plug Not Connecting to Wi-Fi? The Fixes in OrderA router that puts both Wi-Fi bands under one name is a known reason smart plug setup fails.
Explainer
Video Doorbell Battery Dies in the Cold: What HelpsA Ring doorbell works down to -4°F, but its battery stops charging below freezing.