Updated October 2026
Data from Amazon and official Bosch and Nabu Casa sites.
2026 verdict
Which hub should you buy? For a mixed-brand home, the Home Assistant Green is the better pick over the Bosch Smart Home controller II, and it is the better reviewed of the two.
Both are Ethernet-only boxes that work with Alexa, Google Home, Apple Home, SmartThings and Home Assistant, so the spec sheet splits on openness. The Bosch Smart Home controller II has a built-in Zigbee coordinator and acts as a Matter bridge, which makes it the tidy answer for a Bosch Smart Home setup, but it stays largely closed to other brands. The Home Assistant Green is a small computer (1.8 GHz quad-core, 4GB of memory, 32GB of storage) that takes third-party devices, ONVIF and RTSP cameras, Node-RED and Tailscale, though Zigbee and Thread each need a separate dongle. Choose the Bosch Smart Home controller II if your devices are Bosch, and the Home Assistant Green if you want one brain for everything.
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| Feature | Bosch Smart Home controller II | Home Assistant Green | Winner |
|---|---|---|---|
| Price | €66.22 | $219.00 | Bosch Smart Home controller II |
| Rating | 4.2 | 4.4 | Home Assistant Green |
| Connectivity | Ethernet | Ethernet | Tie |
| Protocols | Zigbee Coordinator, Matter Bridge, Third-Party Devices | Zigbee Coordinator, Thread Border Router, Third-Party Devices | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant | Tie |
What the differences mean
Third-party devices
The Home Assistant Green is listed as YES for third-party devices, while the Bosch Smart Home controller II is only partial, with modern Zigbee 3.0 gear and no open API. If you own several brands, this is the difference that decides the purchase.
Zigbee and Thread
The Bosch Smart Home controller II is a Zigbee coordinator out of the box. The Home Assistant Green needs a dongle for Zigbee and another for Thread, which adds cost and a USB port used, in exchange for choosing your own radio.
Matter bridge
The Bosch Smart Home controller II can republish its devices over Matter for other ecosystems. The Home Assistant Green does not list a Matter bridge, so it suits people who bring devices in, not people who pass them on.
Power-user tools
Only the Home Assistant Green lists ONVIF, RTSP, Node-RED and Tailscale, plus real computing hardware. The Bosch Smart Home controller II lists none of them, and its processor and memory are not documented.
Which one to buy if
- your devices come from Bosch
The Bosch Smart Home controller II is the hub several Bosch devices require, with its own Zigbee coordinator built in.
- you run devices from many brands
The Home Assistant Green takes third-party devices and is not tied to one manufacturer's catalog.
- you want IP cameras, Node-RED or remote access through Tailscale
The Home Assistant Green lists ONVIF, RTSP, Node-RED and Tailscale; the Bosch Smart Home controller II lists none.
- you want Zigbee working without buying anything extra
The Bosch Smart Home controller II includes the coordinator, where the Home Assistant Green needs a dongle.
34% OFF
€66.22
€99.95
- + Price: €66.22
- - Rating: 4.2 vs 4.4
Winner
$219.00
- + Rating: 4.4
- - Price: $219.00 vs €66.22
What owners say
Owners of both hubs praise the same thing: a box that stays up and keeps automations running locally instead of through a cloud, and both groups say the setup starts simple. Bosch Smart Home controller II owners single out how stable it is with Bosch devices, its better range than the first generation and the privacy of local processing, but they warn that it rejects older Zigbee gear, that firmware updates can briefly drop devices (one owner saw a smoke detector go unavailable) and that moving over from the first controller meant re-adding everything. Home Assistant Green owners talk about finally getting Lutron, Hue, Shelly, cameras and voice assistants into one dashboard, and about how quiet and small the unit is. Their complaints are the learning curve of the software, the separate dongle for Zigbee and Thread, and a subscription for easy remote access.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Bosch Smart Home controller II
- Home Assistant Green
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Frequently Asked Questions
Which is better overall: Bosch Smart Home controller II or Home Assistant Green?
The Home Assistant Green, mostly on openness. Both work over Ethernet with the same five ecosystems, but the Home Assistant Green accepts third-party devices and power-user tools. The Bosch Smart Home controller II wins only if your devices are Bosch.
What is the biggest difference between the Bosch Smart Home controller II and Home Assistant Green?
How open each one is. The Bosch Smart Home controller II is built around Bosch devices and modern Zigbee 3.0, while the Home Assistant Green is a general computer running Home Assistant that supports third-party devices.
Does the Home Assistant Green have Zigbee like the Bosch Smart Home controller II?
Not built in. The Bosch Smart Home controller II is a Zigbee coordinator by itself, while the Home Assistant Green lists Zigbee as dongle required, and the same goes for its Thread border router.
Do the Bosch Smart Home controller II and Home Assistant Green have Wi-Fi?
No. Neither has 2.4 GHz or 5 GHz Wi-Fi, so both need an Ethernet cable to your router, and neither has Bluetooth, Z-Wave or infrared.
Who should buy the Bosch Smart Home controller II?
Households building a Bosch Smart Home system who value local processing, a reliable hub and Matter bridging, and who do not need to connect other brands.
Who should buy the Home Assistant Green?
People with mixed-brand homes who want local control, cameras over ONVIF or RTSP, Node-RED automations and remote access through Tailscale, and who accept a learning curve and a dongle for Zigbee or Thread.
Full comparison table
Compare all 29 Hubs side by side
You are looking at two of them. The full table lines up all Hubs in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
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