ASUS RT-AX1800S Dual Band WiFi 6 Extendable Router
- Router
- App, Touch, Push button
- dual-band
- Retractable
A solid dual-band WiFi 6 router for a typical household, with real gigabit wired ports and ongoing security instead of a subscription fee.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
Styles Available
Need a different one? Pick on Amazon →
How it ranks among the 16 routers we track
4.3★ across 2,700 Amazon ratings, Bayesian-smoothed toward the category average.
2,700 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 16 routers we track - how the scorecard works · full routers data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A dual-band WiFi 6 router with four gigabit LAN ports, built-in VPN, and subscription-free security, aimed at a home network that wants a mesh-ready upgrade without an add-on security fee.
WiFi 6 support brings OFDMA and MU-MIMO, which split and share channel time across more devices at once rather than serving them one at a time the way older routers do. The security and VPN features, AiProtection Classic and Instant Guard, run without a subscription, which sets it apart from routers that gate similar features behind a monthly fee, and it can be paired into an AiMesh network with other compatible ASUS routers to extend coverage.
- Dual-band WiFi 6 (802.11ax) with MU-MIMO and OFDMA
- 4 gigabit LAN ports, 1 gigabit WAN port
- AiProtection Classic security, no subscription
- Built-in VPN via ASUS Instant Guard
Who it's for
Households wanting a WiFi 6 upgrade with wired gigabit ports for consoles, streaming boxes, or a desktop, plus built-in network security without a subscription. Not the pick for anyone who specifically wants tri-band or WiFi 6E for a very device-dense home.
Strengths and trade-offs
Drawn from this product's published specifications.
- 4 gigabit LAN ports plus 1 gigabit WAN
- AiProtection and VPN work without a subscription
- AiMesh compatible for expanding coverage later
- WiFi 6 support for MU-MIMO and OFDMA
- Dual-band only, not tri-band or WiFi 6E
- No customer reviews yet on this listing
- Real-world throughput depends heavily on the home's layout and interference
Performance notes
MU-MIMO and OFDMA let the router communicate with multiple devices in the same airtime window instead of queuing them, which is what WiFi 6 is built around, and 1024-QAM adds headroom for faster per-device throughput on supported devices. Actual speed and range will vary with walls, interference, and how many devices are active at once, as the maker itself notes, so the router's ceiling is higher than older standards but not a fixed number in a real home.
Specifications
| Brand | Asus |
|---|---|
| Model | RT-AX1800S |
| Dimensions & fit | |
| Item Weight | 13.1 ounces |
| LAN Port Bandwidth | Gigabit |
| Item Dimensions L x W x H | 9.1 × 5.3 × 2.2 inches |
| Power & efficiency | |
| Voltage | 110 volts |
| Construction & materials | |
| Color | BLACK |
| Compatibility & installation | |
| RAM Memory Installed | 256 MB |
| Compatible Devices | Gaming Console, Personal Computer, Smart Television, Smartphone, Tablet |
| Connectivity Protocol | Ethernet, Wi-Fi |
| Connectivity Technology | Ethernet, USB, Wi-Fi |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 3 years |
| Other details | |
| Control Type | App, Touch, Push button |
| Router Network Type | dual-band |
| Antenna Type | Retractable |
| Number of Items | 1 |
| Number of Ports | 5 |
| Number of Antennas | 4 |
| Data Transfer Rate | 1800 megabits_per_second |
| Security Protocol | WPA-Enterprise, WPA2-Enterprise, WPS |
| Frequency | 5 GHz |
| Frequency Band Class | Dual-Band |
| Item Type Name | Networking Router |
| Maximum Upstream Data Transfer Rate | 1201 megabits_per_second |
| Antenna Location | Business, Home |
| Mfr Part Number | RT-AX1800S |
| BuiltIn Media | Power adapter, Quick start guide, RJ-45 cable, RT-AX1800S Router, Warranty card |
| Operating System | Apple iOS, Linux, Mac OS, Microsoft Windows |
| Other Special Features of the Product | WPS |
| WiFi Generation | WiFi 6 |
| Wireless Compability | 802.11a, 802.11ac, 802.11ax, 802.11g, 802.11n |
| Coverage | wide area |
How it compares
This product against the closest alternatives we track in routers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| ASUS RT-AX1800S Dual Band WiFi 6 Extendable RouterThis product | 4.3 / 5 | 2,700 | 4.4 / 5 |
| TP-Link Dual-Band AX3000 Wi-Fi 6 Wireless Gigabit Internet Router for HomeTP-Link | 4.4 / 5 | 10,800 | 4.6 / 5 |
| GL.iNet GL-MT3000 Beryl AX Wi-Fi 6 Travel RouterGL.iNet | 4.5 / 5 | 5,300 | 4.5 / 5 |
| Amazon eero Pro 6E mesh wifi routereero | 4.3 / 5 | 6,100 | 4.3 / 5 |
| NETGEAR WiFi 6 Router 4-StreamNetgear | 4.2 / 5 | 853 | 4.1 / 5 |
Similar routers from other brands
Questions about the Asus RT-AX1800S
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Do I need to pay a subscription for the security features?
No, AiProtection Classic and the Instant Guard VPN are included without a subscription fee.
Can this router work in a mesh setup?
Yes, it's AiMesh compatible, so it can be paired with other AiMesh-supported ASUS routers to extend coverage.
How many wired devices can I connect?
It has four gigabit LAN ports plus one gigabit WAN port for the internet connection.