Smart home hubs, explained
One word covers four unrelated jobs. Separating them is most of the buying decision.
The four jobs hiding inside one word#
Nobody sells "a hub". They sell a box that performs some of these four jobs, and the marketing rarely says which.
| Job | What it actually means | Typical hardware |
|---|---|---|
| Radio host | Holds a Zigbee, Z-Wave, Thread, infrared or 433 MHz radio, because your phone has none of them | SmartThings Station, Hubitat C-8 Pro, Homey Pro, a Home Assistant dongle |
| Local brain | Stores and executes your automations on the device, so they run during an internet outage | Apple Home hub, Hubitat, Home Assistant, Homey Pro |
| Translator | Exposes devices from one protocol or brand to another, usually into Matter | Philips Hue Bridge, Aqara hubs, Homey's Matter Bridge app, SmartThings |
| Insurance | Keeps working when the manufacturer shuts down its cloud, because nothing in the path needs a server | Anything fully local, which is a short list |
A Thread border router is none of those four. It routes IPv6 between a low-power mesh and your LAN. People buy one expecting a hub and get a box that adds nothing to their app. That confusion has its own page: hub, bridge, controller, border router.
Start here#
- Do you need a smart home hub? The honest answer depends on four things, and for a lot of homes the answer is no. Includes the decision table.
- Hubs compared by the radios they carry Radio by radio across every mainstream hub, including the boxes that are missing a radio you assumed was there.
- Hub, bridge, controller, border router Four words used interchangeably, four different things, with the symptoms each confusion produces.
The hardware, side by side#
| Platform | Radios | Hub hardware | Best for |
|---|---|---|---|
| Apple Home | Wi-Fi, Thread, Bluetooth LE | HomePod mini ($129), HomePod 2, Apple TV 4K 2nd gen, Apple TV 4K 3rd gen 128 GB Wi-Fi plus Ethernet ($249) | All-iPhone households that want reliable local automation without maintaining anything. |
| Google Home | Wi-Fi, Thread, Bluetooth LE | Google Home Speaker 2026 ($99.99), Nest Hub 2nd gen, Nest Hub Max, Nest Wifi Pro, Google TV Streamer | Households already invested in Nest hardware that mainly want voice control. |
| Amazon Alexa | Wi-Fi, Thread, Zigbee on selected models, Bluetooth LE, Sidewalk | Echo Dot Max ($99.99), Echo Hub, Echo Show 8 and up, Echo Studio, Echo 4th gen, eero 6 and 7 routers | Getting a lot of devices working cheaply, and voice control in every room. |
| Samsung SmartThings | Wi-Fi, Thread, Zigbee, Z-Wave on Aeotec hubs, Bluetooth LE | SmartThings Station, Aeotec Smart Home Hub, or the hub built into 2022 and later Samsung TVs and Family Hub refrigerators | Mixed protocol homes, and anyone who wants Matter features first. |
| Home Assistant | Zigbee, Thread, Z-Wave 800 and Long Range, Bluetooth LE, Wi-Fi, infrared and 433 MHz through ESPHome | Home Assistant Green ($199) plus a Connect ZBT-2 radio ($49) or ZWA-2 for Z-Wave ($69), or your own hardware | People who want everything local, every protocol, and no vendor able to switch a feature off. |
| Hubitat Elevation | Zigbee 3.0 or Thread depending on model, Z-Wave 800 and Long Range, Wi-Fi, Ethernet, Bluetooth | Hubitat Elevation C-8 Pro ($184.95), or the Thread Special Edition ($249.95) which swaps the Zigbee radio for Thread | Z-Wave and Zigbee heavy homes that want rules to run locally with no maintenance culture. |
| Homey Pro | Wi-Fi, Thread, Zigbee 3.0, Z-Wave 700, Bluetooth LE, infrared, 433 MHz where permitted | Homey Pro 2026 ($449), Homey Pro mini ($249) which needs a $69 Bridge for anything beyond Wi-Fi and Zigbee | Homes full of legacy hardware that needs bridging into Matter, especially infrared and 433 MHz gear. |
Two things stand out. First, only three of the seven carry Z-Wave natively, which matters because it is still the best answer for locks and detached buildings. Second, the cheap end of the market (a $99.99 speaker) is a hub in the "translator" sense and almost never in the "local brain" sense.
Three purchases that go wrong#
The Echo that turned out not to be a hub. Echo Dot and Echo Pop have no hub radios at all: no Zigbee, no Thread. The Echo Dot Max, Echo Hub, Echo Studio, Echo 4th gen and the larger Echo Show models are the ones with radios, and even there Zigbee is only on specific models.
Home Assistant Green with nothing plugged into it. The $199 Green has no built-in radios at all. Zigbee or Thread means a $49 Connect ZBT-2, Z-Wave means a $69 Connect ZWA-2, and the ZBT-2 runs one protocol at a time. Budget two dongles if you want Zigbee and Thread together. Home Assistant as a platform has the rest of the shopping list.
Everything in this cluster#
- Do you need a smart home hub?The four questions that decide whether a hub is worth buying, each with a verdict, plus a decision table and what to buy for each answer.
- Hubs compared by the radios they carryEvery mainstream hub compared on Thread, Zigbee, Z-Wave, Bluetooth and infrared, plus the model-level traps that cost people an afternoon.
- Hub, bridge, controller, border routerPrecise definitions of hub, bridge, Matter controller and Thread border router, which products play which roles, and what each mix-up costs you.
Where the hub decision sits#
Underneath a hub is the radio: which radio for which job decides whether you need a Zigbee coordinator at all. Above it is the platform: the seven platforms compared decides whose app you live in. If your reason for wanting a hub is that things should keep working, read local versus cloud control first.
What does a smart home hub actually do?
Up to four things: it hosts radios your phone lacks (Zigbee, Z-Wave, Thread, infrared), it runs automations locally so they survive an outage, it translates devices from one protocol into another, and it removes a vendor cloud from the path. Products do some of these and not others, which is why two boxes both called hubs behave differently.
Is a Matter controller the same as a hub?
Not quite. A Matter controller holds credentials for a Matter fabric and can commission devices into it, which is a software role. Your iPhone can act as a controller. A hub is a physical box, and it usually contains a controller plus radios plus an automation engine. The distinction matters most when something fails, because each role fails differently.
Do I still need a hub if everything I buy is Matter?
Often yes. Matter over Wi-Fi needs no hub, but Matter over Thread needs a border router, and running automations without the internet needs a hub that stores them. Matter also reaches Zigbee and Z-Wave only through a bridge, and a bridge is a hub.
Can I run two hubs at once?
Yes, and many good setups do. Matter multi-admin lets one device belong to several controllers at once, so a lock can answer both Apple Home and Home Assistant. The failure mode is automation logic split across two systems that cannot see each other's state. Running two platforms on purpose covers it.
Which hub has every radio?
Homey Pro 2026 comes closest at $449: Wi-Fi, Thread, Zigbee 3.0, Z-Wave 700, Bluetooth LE and infrared, with its 433 MHz radio disabled in the United States for regulatory reasons. Home Assistant reaches similar coverage through dongles and ESPHome, for less money and more setup work. Hubs compared by the radios they carry has the matrix.
Does a hub protect me if a company shuts down?
Only if the hub is the thing doing the work. Belkin shut Wemo down on 31 January 2026, and the only devices that survived were those already paired to Apple HomeKit, which kept working locally. A hub that still asks a vendor cloud for permission offers no protection at all. When a smart home company shuts down has the pattern and the warning signs.
Primary sources
Specification and vendor documentation we checked while writing this page. Where a claim depends on firmware behaviour rather than a published spec, the page says so inline.