TP-Link Deco Mesh AC1900 WiFi System (Deco S4) – Up to 5,500 Sq.ft. Coverage, Replaces WiFi Router and Extender, Gigabit Port

4.5 4.5 out of 5 stars | 27,809 ratings

Price: 99.99

Last update: 01-11-2025


About this item

A New Way to WiFi: Deco Mesh technology gives you a better WiFi experience in all directions with faster WiFi speeds and strong WiFi signal to cover your whole home.
Better Coverage than traditional WiFi routers: Deco S4 three units work seamlessly to create a WiFi mesh network that can cover homes up to 5, 500 square feet. No dead zone anymore.
Seamless and Stable WiFi Mesh: Rather than wifi range extender that need multiple network names and passwords, Deco S4 allows you to enjoy seamless roaming throughout the house, with a single network name and password.
Incredibly fast 3× 3 6*Stream AC1900 speeds makes the deco capable of providing connectivity for up to 100 devices.
With advanced Deco Mesh Technology, units work together to form a unified network with a single network name. Devices automatically switch between Decos as you move through your home for the fastest possible speeds.
Robust Parental Controls: Limit online time and block inappropriate websites according to unique profiles created for each family member. Easy to keep your children safe while they’re online.
Setup is a breeze with the Deco app available on your Android or iOS device. Turn on or off guest WiFi with Alexa voice commands.
Each Deco S4 has 2 Gigabit Ethernet ports(6 in total for a 3-pack) and supports Wired Ethernet Backhaul for better speeds. Any of them can work as a Wi-Fi Router. Works with all internet service providers, such as AT&T, Verizon, Xfinity, Spectrum, RCN, Cox, CenturyLink, Frontier, etc.( a modem is required for most internet service providers)

Product information


Top reviews from the United States

PapaKnowsStuff
5.0 out of 5 stars **Exceptional Wi-Fi Coverage and Speed!**
Reviewed in the United States on September 8, 2024
I recently upgraded to the **TP-Link Dual-Band AX1500 WiFi 6 Mesh Wi-Fi System (Deco X15)**, and it has completely transformed my internet experience at home! Here are some highlights:

**Impressive Coverage:** The mesh system provides seamless coverage throughout my entire house, eliminating dead zones that my previous router struggled with. I can now enjoy strong Wi-Fi in every corner of my home, including the backyard!

**Blazing Fast Speeds:** With Wi-Fi 6 technology, the speeds are phenomenal. Streaming, gaming, and working from home have never been smoother. I’ve noticed a significant decrease in lag and buffering.

**User-Friendly Setup:** Setting up the Deco X15 was incredibly straightforward. The app guided me through the installation process, and I had my network up and running in minutes. Plus, the app makes it easy to manage settings and connected devices.

**Advanced Security Features:** I appreciate the built-in security features that help keep my network safe. The parental controls are a great addition, allowing me to manage screen time for my kids easily.

**Sleek Design:** The Deco units look modern and blend well with my home decor, unlike some bulky routers.

Overall, the **TP-Link Dual-Band AX1500 WiFi 6 Mesh Wi-Fi System** is a fantastic investment for anyone looking to enhance their home network. I highly recommend it for anyone seeking reliable and fast internet!
Customer image
PapaKnowsStuff
5.0 out of 5 stars **Exceptional Wi-Fi Coverage and Speed!**
Reviewed in the United States on September 8, 2024
I recently upgraded to the **TP-Link Dual-Band AX1500 WiFi 6 Mesh Wi-Fi System (Deco X15)**, and it has completely transformed my internet experience at home! Here are some highlights:

**Impressive Coverage:** The mesh system provides seamless coverage throughout my entire house, eliminating dead zones that my previous router struggled with. I can now enjoy strong Wi-Fi in every corner of my home, including the backyard!

**Blazing Fast Speeds:** With Wi-Fi 6 technology, the speeds are phenomenal. Streaming, gaming, and working from home have never been smoother. I’ve noticed a significant decrease in lag and buffering.

**User-Friendly Setup:** Setting up the Deco X15 was incredibly straightforward. The app guided me through the installation process, and I had my network up and running in minutes. Plus, the app makes it easy to manage settings and connected devices.

**Advanced Security Features:** I appreciate the built-in security features that help keep my network safe. The parental controls are a great addition, allowing me to manage screen time for my kids easily.

**Sleek Design:** The Deco units look modern and blend well with my home decor, unlike some bulky routers.

Overall, the **TP-Link Dual-Band AX1500 WiFi 6 Mesh Wi-Fi System** is a fantastic investment for anyone looking to enhance their home network. I highly recommend it for anyone seeking reliable and fast internet!
Images in this review
Customer image
ARVIN CASTRO
5.0 out of 5 stars Finally WiFi that doesn't feel compromised
Reviewed in the United States on June 13, 2020
I have Verizon FIOS bundled service, so I have my TV, phone and internet all-in-one. While I do love FIOS, one of the negatives is that I had to use their bundled Gateway modem/router because of my TV and phone services. My house does have a wired ethernet network running thru it, which is great for all my desktop PC's and Home Theater setup, but the FIOS Gateway router's WiFi performance didn't adequately cover my three floor house (the FIOS modem is in my garage, next to my home wired-network box). To help solve this issue, I tried using the very well reviewed Netgear EX6200 range extender, but I could never get reliable performance out of it...random drops, slow speeds...it just didn't seem to like working with my FIOS router.

In looking for a better solution, my research led me to looking into Mesh networking, especially as these systems (supposedly) would not need to bypass my FIOS modem...it would work with it, just taking over the WiFi functions. I was apprehensive, so I wanted a cost effective product. Tp-Link's Deco series have gotten rave reviews and their latest S4-series was actually cheaper than the previous M4-series, so I took the plunge.

Getting the Deco S4 up and running is so much simpler than traditional WiFi extenders and boosters...download the TP-Link mobile app, launch it, pick your TP-Link product and it guides you through the whole process. There were some hiccups during installation, mainly where the app failed in finding the S4 devices on the first pass, but hitting the Try Again button solved the issue. The S4 router unit (all three are identical) simply plugs into any open port on the back of the FIOS modem. Once the Mesh network is setup on this S4 router, you can now easily add the other units throughout your home using the app. The app has a lot of functionality...you can set-up usage profiles, "Blacklist" devices from using your network, monitor network health and utilization, etc. Two other benefits with the S4 Deco units are that each includes two auto-sensing Gigabit ethernet ports (useful for network switches/hubs or plugging in non-WiFi devices, etc.) and that they are compatible with all TP-Link WiFi devices, so expansion and upgrades are easy.

Coverage is excellent. The big benefit to a Mesh network is that all the S4 units are essentially operating as one...so, as you move throughout your house (or even outside!), your devices simply pick-up the strongest signal from the best available S4 router. You don't need to manually switch from network to network like you would with a traditional WiFi extender. Speeds are surprisingly fast. I only have FIOS 100/100 service, but I am getting WiFi speeds of 100+ Mbps on my ground and third floors (both S4 units are wired) and almost a full 80 Mbps on my second floor with a non-wired S4 unit. Outside on my back deck, speed drops to "only" 60 Mbps...incredible! I spent about 4 hours stress testing the network and found it to be rock solid...very consistent and dependable WiFi performance.

If there were two things I'd list as negatives, they would be the lack of a web-based network tool/programmer (everything has to be done on the mobile app) and that there was a way to identify/isolate usage between the 2.4 and 5.0 bands.

This is a long review, but to sum it up, the Deco S4 is a great product. It's simple to set-up, works with your existing modem (a HUGE plus for Verizon FIOS users), doesn't act like a bottleneck and offers a huge area of coverage. And there's the very nice price. I finally feel like I'm getting all the WiFi I'm supposed to be getting!
Customer image
ARVIN CASTRO
5.0 out of 5 stars Finally WiFi that doesn't feel compromised
Reviewed in the United States on June 13, 2020
I have Verizon FIOS bundled service, so I have my TV, phone and internet all-in-one. While I do love FIOS, one of the negatives is that I had to use their bundled Gateway modem/router because of my TV and phone services. My house does have a wired ethernet network running thru it, which is great for all my desktop PC's and Home Theater setup, but the FIOS Gateway router's WiFi performance didn't adequately cover my three floor house (the FIOS modem is in my garage, next to my home wired-network box). To help solve this issue, I tried using the very well reviewed Netgear EX6200 range extender, but I could never get reliable performance out of it...random drops, slow speeds...it just didn't seem to like working with my FIOS router.

In looking for a better solution, my research led me to looking into Mesh networking, especially as these systems (supposedly) would not need to bypass my FIOS modem...it would work with it, just taking over the WiFi functions. I was apprehensive, so I wanted a cost effective product. Tp-Link's Deco series have gotten rave reviews and their latest S4-series was actually cheaper than the previous M4-series, so I took the plunge.

Getting the Deco S4 up and running is so much simpler than traditional WiFi extenders and boosters...download the TP-Link mobile app, launch it, pick your TP-Link product and it guides you through the whole process. There were some hiccups during installation, mainly where the app failed in finding the S4 devices on the first pass, but hitting the Try Again button solved the issue. The S4 router unit (all three are identical) simply plugs into any open port on the back of the FIOS modem. Once the Mesh network is setup on this S4 router, you can now easily add the other units throughout your home using the app. The app has a lot of functionality...you can set-up usage profiles, "Blacklist" devices from using your network, monitor network health and utilization, etc. Two other benefits with the S4 Deco units are that each includes two auto-sensing Gigabit ethernet ports (useful for network switches/hubs or plugging in non-WiFi devices, etc.) and that they are compatible with all TP-Link WiFi devices, so expansion and upgrades are easy.

Coverage is excellent. The big benefit to a Mesh network is that all the S4 units are essentially operating as one...so, as you move throughout your house (or even outside!), your devices simply pick-up the strongest signal from the best available S4 router. You don't need to manually switch from network to network like you would with a traditional WiFi extender. Speeds are surprisingly fast. I only have FIOS 100/100 service, but I am getting WiFi speeds of 100+ Mbps on my ground and third floors (both S4 units are wired) and almost a full 80 Mbps on my second floor with a non-wired S4 unit. Outside on my back deck, speed drops to "only" 60 Mbps...incredible! I spent about 4 hours stress testing the network and found it to be rock solid...very consistent and dependable WiFi performance.

If there were two things I'd list as negatives, they would be the lack of a web-based network tool/programmer (everything has to be done on the mobile app) and that there was a way to identify/isolate usage between the 2.4 and 5.0 bands.

This is a long review, but to sum it up, the Deco S4 is a great product. It's simple to set-up, works with your existing modem (a HUGE plus for Verizon FIOS users), doesn't act like a bottleneck and offers a huge area of coverage. And there's the very nice price. I finally feel like I'm getting all the WiFi I'm supposed to be getting!
Images in this review
Customer image Customer image Customer image Customer image
Ulysses
5.0 out of 5 stars Easiest setup ever for a router, works great
Reviewed in the United States on October 7, 2024
I have eeros for my main network, but wanted a DMZ for smart devices so the main network wasn't exposed should anyone gain access to them. These were on sale so I took a chance. It turns out that they are easier to install than the eero, handle my 1G fiber internet bandwidth and seem, if anything, more stable than the eero. I have a 2-story house so i have one on each floor, and one in the basement. Two of them have ethernet backhaul, but the 2nd-floor does not and doesn't show and diminished speed. I set the guest network for 2.4GHz only, which makes attaching smart devices (which typically don't do 5G wifi) really easy. I have, on occasion, connected my phone to the Deco's main wifi when the eero connection dropped. After moving all of my smart devices and hubs to the Deco guest network, I am wondering why I still have the eeros!

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