By Claire WhitakerIf you are setting up a smart home, you have probably seen the term “hub” and wondered whether you need one. The short answer is: it depends on the devices you choose. Some gadgets connect directly to your Wi‑Fi network and work without a hub, while others rely on a dedicated hub to communicate. This guide explains the different types of hubs, what they do, and how to decide if you need one for your home.
What a hub does
A smart home hub acts as a central point that connects your devices to each other and to your smart home app. Many smart devices use low‑power wireless protocols such as Zigbee or Z‑Wave instead of Wi‑Fi. Because your phone and router do not natively speak those protocols, a hub translates the signals so that everything can work together. A hub also enables local control, meaning commands can be processed inside your home without relying on the internet. This can make automations faster and more reliable.
Devices that need no hub
Many popular smart devices connect directly to your home’s Wi‑Fi network and do not require a separate hub. These include smart plugs, Wi‑Fi light bulbs, and some security cameras. They communicate with your phone or voice assistant through your router, and you control them using the manufacturer’s app or a compatible smart home app. Because they do not need a hub, they are often easier to set up and can be a good starting point for a beginner. However, they may consume more bandwidth and can slow down your network if you add many of them.
For a step‑by‑step guide on getting started with any type of smart device, see our Smart Home for Beginners guide.
Devices that do need a hub
Devices that use Zigbee, Z‑Wave, or certain Bluetooth mesh networks require a hub to function. Common examples include many smart sensors (motion, door/window, temperature), some smart locks, and certain light bulbs and switches. These protocols are designed for low power and can create a mesh network where each device helps relay signals, extending the range. The hub acts as the coordinator that sends commands and receives status updates. Without a hub, these devices simply will not work.
If you plan to buy a device that uses Zigbee or Z‑Wave, you will need to choose a compatible hub. Some hubs support only one protocol, while others support both. Check the device packaging or the manufacturer’s website for hub requirements before purchasing. You can find more details in our article on hub requirements.
Thread and border routers
Thread is a newer low‑power wireless protocol designed for smart home devices. Like Zigbee and Z‑Wave, Thread devices form a mesh network. However, Thread does not require a dedicated hub. Instead, it uses a “border router” that connects the Thread network to your home’s Wi‑Fi or Ethernet network. Many modern smart speakers, displays, and some Wi‑Fi routers include a Thread border router built in. If you have a device that supports Thread, you may already have a border router without realizing it. The key is that Thread devices are often compatible with the Matter standard, which aims to make devices from different brands work together. Check the device box or manufacturer page to see if it supports Thread and which border routers are compatible.
Speakers and displays as hubs
Many smart speakers and displays can act as a hub for certain protocols. For example, some models include a Zigbee radio that lets you pair compatible Zigbee devices directly to the speaker, allowing you to control them by voice or through the smart home app. Similarly, some devices include a Thread border router. Using a smart speaker as a hub can simplify your setup because you do not need a separate box. However, these built‑in hubs often support only a limited set of devices and may not offer the same level of automation or local control as a dedicated hub. If you only have a few Zigbee or Thread devices, a smart speaker might be enough. For larger systems, a dedicated hub may be more reliable.
Dedicated automation hubs
Dedicated automation hubs are standalone devices designed solely to manage your smart home. They typically support multiple protocols (Zigbee, Z‑Wave, Thread, and sometimes Bluetooth) and offer advanced features such as complex automations, local processing, and integration with many different brands. These hubs often run locally, meaning your automations continue to work even if your internet goes down. They also tend to be more responsive because commands do not have to travel to a cloud server and back. If you want to build a large, reliable smart home with many devices and custom rules, a dedicated hub is a strong choice.
Decision guide
To help you decide whether you need a smart home hub, consider the following questions:
- What devices do you already own or plan to buy? If all your devices use Wi‑Fi, you do not need a hub. If they use Zigbee, Z‑Wave, or Thread, you will need some kind of hub or border router.
- How many devices do you expect to have? A few devices can be managed by a smart speaker or a small hub. A larger system with dozens of devices may benefit from a dedicated hub for stability and performance.
- Do you want local control? If you want your automations to work even when the internet is down, choose a hub that processes commands locally. Many Wi‑Fi devices rely on cloud servers, while Zigbee/Z‑Wave hubs typically offer local control.
- Do you want to use Matter? Matter devices can work with any compatible hub or border router. If you are building a Matter‑based system, you may not need a traditional hub, but you will need a Matter controller (which could be a smart speaker, a hub, or an app).
Here is a simple comparison table to summarize the options:
| Setup type | Hub needed? | Best for |
|---|---|---|
| All Wi‑Fi devices | No | Simple, small setups; easy to expand |
| Zigbee or Z‑Wave devices | Yes – dedicated hub or speaker with radio | Reliable, low‑power devices; mesh network |
| Thread devices | Border router (often built into speaker or router) | Matter‑compatible devices; future‑proof |
| Mixed protocols, many devices | Yes – dedicated automation hub | Large, complex systems; local control |
For a deeper look at how Matter changes the landscape, read our guide What Is Matter? A Plain‑English Guide for Your Smart Home.
FAQ
Can I use a smart speaker as a hub for all my devices?
Not always. Many smart speakers include a Zigbee radio or a Thread border router, but they may not support Z‑Wave or other protocols. Check the speaker’s specifications to see which protocols it supports. Also, the number of devices you can connect may be limited compared to a dedicated hub.
Do I need a hub if I only use Wi‑Fi smart plugs and lights?
No. Wi‑Fi devices connect directly to your router and do not require a hub. You can control them through the manufacturer’s app or a compatible smart home app.
What is the difference between a hub and a bridge?
The terms are often used interchangeably, but a bridge usually connects a specific brand’s devices to your network, while a hub can connect devices from multiple brands and protocols. For example, a bridge might only work with that brand’s light bulbs, whereas a hub can manage Zigbee, Z‑Wave, and Wi‑Fi devices together.
Will a hub make my smart home faster?
It can, especially if it processes commands locally. When a hub does not need to send commands to the cloud, response times are shorter. This is most noticeable for actions like turning on lights or unlocking doors.
Deciding whether you need a smart home hub comes down to the devices you choose and how you want them to work together. Start with a few Wi‑Fi devices if you want a simple setup, or invest in a hub if you plan to use low‑power sensors and locks. As you add more devices, you can always add a hub later to unify everything.
About Claire Whitaker
Claire Whitaker is part of our editorial team and reviews and edits our smart home guides, checking product details against manufacturer specifications and owner feedback.
