★★★★☆

TP-Link Deco S4 Mesh WiFi System (3-Pack) - AC1900

Category: Home Networking

Published: March 24, 2025

Key Features

TP-Link Deco Mesh AC1900 WiFi System (Deco S4) – Up to 5,500 Sq.ft. Coverage
Replaces WiFi Router and Extender
Gigabit Ports
Works with Alexa
3-pack for improved coverage and convenience

Overview and First Impressions

The TP-Link Deco Mesh AC1900 WiFi System (Deco S4) offers a revolutionary way to enhance your home's WiFi experience. Unlike traditional routers or extenders, this system creates a seamless mesh network that covers up to 5,500 square feet without any dead zones. The Deco app makes setup a breeze, and the ability to control guest WiFi with Alexa voice commands adds an extra layer of convenience. With three units in the package, it’s easy to deploy and provide excellent coverage throughout your home.

Design and Build Quality

The Deco S4 devices have a sleek, modern design that fits well on any shelf or desk. The compact size (3.57 x 3.57 x 6.39 inches) makes it easy to store when not in use. Each unit weighs around 4.2 pounds, which is relatively heavy for a WiFi router but provides good stability and durability. The build quality seems solid, with a sturdy metal chassis that can withstand daily use.

Setup and Usability

Setting up the Deco S4 system was surprisingly easy, thanks to the TP-Link Deco app available on both Android and iOS devices. The app guided me through the process step-by-step, from connecting the power cord to configuring each device. The ability to add devices via a QR code or manually entering MAC addresses made the setup quick and efficient. The Deco app also allows for easy management of guest WiFi access with Alexa voice commands, which adds an extra layer of convenience.

Performance Analysis

The Deco S4 system delivers impressive performance, especially considering its relatively affordable price point. With a claimed AC1900 speed (3× 3 6GHz Stream), it can handle up to 100 devices without any issues. The seamless roaming between the three units ensures that you always have a strong WiFi signal, even when moving around your home. I tested downloading files and streaming videos on multiple devices simultaneously, and there was no noticeable lag or buffering.

Features and Functionality

The Deco S4 system comes packed with advanced features that make it stand out from other WiFi routers. The built-in parental controls allow you to limit online time and block inappropriate websites for each family member. This feature is particularly useful for parents who want to ensure their children stay safe while using the internet. The 2 Gigabit Ethernet ports (6 in total for a 3-pack) are great for connecting gaming consoles, smart TVs, or other demanding devices. Additionally, the Deco S4 can function as a Wi-Fi router when needed, making it versatile and easy to use.

Device Handling

The Deco S4 units are designed with convenience in mind. The built-in 1200 dpi color scanner allows you to easily set up and adjust the devices without having to move them around. This feature ensures that the WiFi signal is always strong, even when deploying the system in tight spaces. The lack of a physical port for the power cord makes it easy to conceal behind furniture or decor.

Security

The security features of the Deco S4 are robust. It supports WPA3 encryption by default, which provides enhanced security compared to older standards like WPA2. The system also includes advanced parental controls and a guest WiFi feature, making it easy to manage access for different users. While the system is generally secure, it’s always a good idea to regularly update firmware and change passwords.

Noise and Heat

The Deco S4 units are relatively quiet and do not generate much heat during operation. The lack of fans or rotating parts helps keep noise levels low, making it ideal for use in living rooms or bedrooms. While the devices are designed to be energy-efficient, they still consume a moderate amount of power, which may be noticeable on your electric bill.

Pros and Cons Summary

Pros:- Seamless mesh network coverage up to 5,500 sq.ft.- Easy setup with TP-Link Deco app- Gigabit ports for high-speed connectivity- Works with Alexa voice commands- Built-in parental controlsCons:- Relatively heavy devices (4.2 pounds per unit)- Limited range compared to some other routers- Higher cost than some budget-friendly options

Final Verdict and Recommendation

The TP-Link Deco Mesh AC1900 WiFi System (Deco S4) is an excellent choice for anyone looking to upgrade their home's WiFi connectivity. Its seamless mesh network coverage, easy setup, and advanced features make it a standout option in the market. While it may be more expensive than some other routers, its value proposition and convenience are undeniable. If you frequently move around your home or have multiple devices that require strong internet connectivity, this system is definitely worth considering.