Does Home Assistant Green Have Zigbee?

Short answer: no. The Home Assistant Green ships without a Zigbee radio — and without Thread, Z-Wave, Wi-Fi, or Bluetooth either. What it does ship with is a full copy of Home Assistant OS and two USB ports, which means Zigbee support is a straightforward upgrade via an inexpensive USB coordinator. This guide explains exactly what is and isn’t inside the Green, which coordinators work best with it, and how the Green compares to the Home Assistant Yellow and other configurations.

Green vs Yellow vs Green + Coordinator: At a Glance

Home Assistant GreenHome Assistant YellowGreen + ZBT-1Green + SLZB-06M
Built-in ZigbeeNoYes (via M.2 module option)No (USB)No (Ethernet)
Built-in ThreadNoYes (via M.2 module option)NoNo
Built-in Wi-FiNoNoNoNo
Built-in BluetoothNoNoNoNo
Coordinator placementFixed at hubFixed at hubUSB, extendableAnywhere on LAN
Approx. UK pricearound £100around £130–£160around £130around £140–£160
Who it’s forEthernet-first, radio-optionalZigbee/Thread built-inGreen owners adding ZigbeeLarge homes, thick walls

Prices are approximate and subject to change; check the Nabu Casa store and authorised UK retailers for current figures.

If you already own a Green and just want Zigbee working today, the ZBT-1 is the most straightforward choice. If you have a large home with thick walls, the SLZB-06M’s central placement advantage is worth the extra cost.

Quick Picks

PickBest forOne-line reasonApprox. UK price
Home Assistant Connect ZBT-1 (formerly SkyConnect)Most Green ownersOfficial Nabu Casa stick; ZHA detects it automatically on plug-inaround £30
Sonoff Zigbee 3.0 USB Dongle Plus-EBest valueLarge community, well-supported by both ZHA and Zigbee2MQTTaround £20–£30
SMLIGHT SLZB-06MLarge homes and rack installsPoE Ethernet coordinator mountable centrally, away from the Greenaround £35–£55

UK prices are approximate; check current listings before purchasing as retail prices shift.

Does Home Assistant Green Have Zigbee Built In?

No. According to Nabu Casa’s published Home Assistant Green specifications, the Green contains no Zigbee coordinator chip, no Thread radio, no Z-Wave module, no Wi-Fi antenna, and no Bluetooth radio. The practical consequences of this are worth spelling out:

  • Ethernet-only siting: the Green must be connected via a physical cable; it cannot be placed wherever Wi-Fi reaches.
  • No BLE device tracking: without Bluetooth, the Green cannot natively track BLE devices or act as a BLE proxy — though ESPHome-based Bluetooth proxy devices can fill this gap (see the ESPHome Bluetooth proxy documentation).
  • No native Thread border router: Thread devices require a separate USB or network-attached Thread radio.

What the Green actually ships with

Per Nabu Casa’s product specification page:

  • A Rockchip RK3566 quad-core ARM Cortex-A55 SoC
  • 4 GB of RAM
  • 32 GB of eMMC storage, plus a microSD slot for expansion
  • Gigabit Ethernet
  • Two USB 2.0 ports
  • HDMI output and USB-C power input

The two USB ports are the key practical detail: one can host a Zigbee coordinator, and the second remains free for a Z-Wave dongle, external SSD, or a second coordinator.

Why Nabu Casa left the radios out

Nabu Casa has not published a detailed rationale for the radio-free design. The reasons most commonly cited in the Home Assistant Community forum are:

  1. Single worldwide SKU: Zigbee, Thread, and especially Z-Wave have regional frequency and certification requirements. A radio-free box avoids the need for regional hardware variants.
  2. Flexibility over time: an external USB coordinator can be repositioned, upgraded, or replaced as standards evolve, without replacing the hub itself.
  3. Cost: omitting radios keeps the base unit price lower for buyers who only need Ethernet-based integrations.

Zigbee vs Thread vs Matter vs Z-Wave on the Green

These terms are frequently confused:

  • Zigbee — a mesh protocol for low-power devices (sensors, bulbs, plugs, buttons). Requires a dedicated coordinator radio, added via USB or Ethernet on the Green.
  • Thread — a newer IP-based mesh protocol, also requiring a radio. Home Assistant runs it via the OpenThread Border Router add-on (docs).
  • Matter — an application-layer standard, not a radio. Matter devices communicate over Thread, Wi-Fi, or Ethernet. The Green can act as a Matter controller without extra hardware, but controlling Matter-over-Thread devices still requires a Thread radio.
  • Z-Wave — a separate mesh standard requiring a Z-Wave USB stick. The current widely used series is the Aeotec Z-Stick 7 (800-series), compatible with the Green via the Z-Wave JS integration (docs).

The ZBT-1 (Formerly SkyConnect): One Important Limitation

The Home Assistant Connect ZBT-1 — previously sold as the SkyConnect — is Nabu Casa’s own USB coordinator and the most seamlessly integrated option for the Green. However, it contains a single radio that operates as either a Zigbee coordinator or a Thread border router — not both simultaneously. The multiprotocol mode that once allowed concurrent operation was deprecated; Nabu Casa’s own ZBT-1 product page and the multiprotocol deprecation announcement explain this directly.

In practice: if you want both Zigbee and Thread running concurrently on a Green, you need two sticks — one configured for each protocol — or a coordinator that handles them on separate radios.

Before You Plug In: USB Extension and Interference

This is the most common cause of unreliable Zigbee performance on any hub, including the Green, and is documented in both the ZHA integration docs and the Zigbee2MQTT documentation:

  • Use a USB extension cable. A short cable (15–30 cm) moves the coordinator away from the Green’s enclosure and its USB 3.0-adjacent electrical noise, significantly improving range and reliability.
  • Keep the coordinator away from your router and other 2.4 GHz sources. Wi-Fi and Zigbee share the 2.4 GHz band; physical separation reduces co-channel interference.
  • Choose a non-overlapping Zigbee channel. Zigbee channels 15, 20, 25, and 26 have the least overlap with common Wi-Fi channels 1, 6, and 11. The Zigbee2MQTT documentation includes a channel planning guide.
  • Position for mesh coverage, not hub convenience. The coordinator should be as central as possible relative to your devices, not wherever the Green happens to live.

How to Add Zigbee to Home Assistant Green

Option 1: USB coordinator with ZHA (easiest)

ZHA (Zigbee Home Automation) is built into Home Assistant and requires no add-on installation. The setup flow, documented at home-assistant.io/integrations/zha, is:

  1. Plug a supported coordinator into one of the Green’s USB ports (using a short extension cable — see above).
  2. Open Settings → Devices & Services.
  3. Home Assistant will typically offer to configure ZHA automatically when it detects a known coordinator.
  4. Select your Zigbee channel and complete setup.
  5. Put devices into pairing mode to add them.

ZHA is the right choice for most users: it is local, fast, and maintained by the Home Assistant team. Note that ZHA and Zigbee2MQTT cannot share a single coordinator — you must choose one or the other for a given stick.

Option 2: Zigbee2MQTT (most flexible)

Zigbee2MQTT runs as an add-on on the Green and supports a broader range of devices, including many Tuya sensors, IKEA TRÅDFRI products, and Aqara devices, with more granular control over pairing and firmware updates. It requires the Mosquitto MQTT broker add-on running alongside it. Full setup instructions are at zigbee2mqtt.io/guide/installation/.

The Zigbee2MQTT device database lists over 3,000 supported devices as of 2026 and is the authoritative source for checking compatibility before purchase. The Home Assistant Community forum regularly discusses Zigbee2MQTT configurations for specific device families if you encounter pairing issues.

Zigbee2MQTT is the better long-term choice for installations with many devices or where you need detailed control over network behaviour — but it has a steeper initial configuration curve than ZHA.

Option 3: Network-attached coordinator (best range)

A PoE or Ethernet coordinator such as the SLZB-06M doesn’t plug into the Green at all — it sits wherever the Zigbee mesh is strongest and communicates with Home Assistant over your local network. In larger UK homes with brick internal walls, this is often the most effective solution. Setup uses either ZHA (via network connection) or Zigbee2MQTT with the coordinator’s IP address configured as the serial port.

You might not need a coordinator at all

If your Zigbee devices are Philips Hue or IKEA products, you may not need a USB coordinator. Both brands offer their own bridges (the Hue Bridge and IKEA Dirigera) that integrate with Home Assistant entirely over your local network — no USB stick required. See the Philips Hue integration docs and IKEA integration docs for setup details.

Coordinator Comparison

CoordinatorChipsetProtocolsConnectionZigbee2MQTT supportApprox. UK price
ZBT-1 (SkyConnect)Silicon Labs EFR32MG21Zigbee or Thread (not simultaneous)USBYesaround £30
Sonoff ZBDongle-ESilicon Labs EFR32MG21ZigbeeUSBYesaround £20–£25
Sonoff ZBDongle-PTexas Instruments CC2652PZigbeeUSBYesaround £15–£20
SMLIGHT SLZB-06MSilicon Labs EFR32MG21Zigbee + Thread (separate radios)Ethernet/PoEYesaround £35–£55
ConBee IIISilicon Labs EFR32MG21ZigbeeUSBYesaround £30–£40

Zigbee2MQTT support status sourced from the Zigbee2MQTT supported adapters page. Prices are approximate UK retail figures and subject to change.

Troubleshooting: When Zigbee Doesn’t Work

Based on documented issues in the ZHA GitHub repository and Zigbee2MQTT GitHub:

  • Coordinator not detected: try a different USB port; confirm the stick is not plugged into a USB hub. Check that no other add-on (ZHA and Zigbee2MQTT simultaneously) is claiming the device.
  • Poor range or dropped devices: add a USB extension cable and reposition the coordinator away from the Green and your router.
  • Device won’t pair: reset the device fully before attempting to pair; consult the Zigbee2MQTT device page for device-specific pairing instructions.
  • ZHA and Zigbee2MQTT conflict: these two integrations cannot share one coordinator. Disable one completely before enabling the other.
  • Firmware update needed: the Sonoff ZBDongle-E and ZBT-1 both support firmware updates. ZBT-1 firmware can be updated via the Home Assistant UI; Sonoff dongles can be updated using the Zigbee2MQTT firmware flashing guide.
  • Interference from USB 3.0: if your Green is connected to a USB 3.0 hub or drive, the 2.4 GHz interference can disrupt Zigbee. Keep the coordinator physically separated.

Frequently Asked Questions

Does the Home Assistant Green work with Zigbee without a USB stick? No. The Green has no built-in Zigbee radio. You need a USB coordinator (such as the ZBT-1 or Sonoff ZBDongle-E) or a network-attached coordinator (such as the SLZB-06M), or you can use a brand-specific bridge like the Philips Hue Bridge over the network. See the ZHA integration page for supported coordinators.

Can the Green run Zigbee and Thread at the same time? Yes, but you need two separate radios — one configured for Zigbee and one for Thread. The ZBT-1 is a single-radio device and can only run one protocol at a time following the deprecation of multiprotocol mode (Nabu Casa announcement). The SLZB-06M has separate radios and can handle both concurrently.

Can ZHA and Zigbee2MQTT run on the same coordinator at the same time? No. Only one integration can claim a coordinator at a time. You must choose ZHA or Zigbee2MQTT for a given stick. If you want to switch, disable the active integration fully before enabling the other.

Which coordinator handles 100+ Zigbee devices? Any of the Silicon Labs EFR32MG21-based coordinators (ZBT-1, ZBDongle-E, SLZB-06M) are widely used in large networks. The Zigbee2MQTT documentation notes that network size is more often limited by mesh topology and coordinator placement than by coordinator hardware.

Does the Home Assistant Green need Wi-Fi? No — and it has no Wi-Fi radio. The Green connects exclusively via Gigabit Ethernet. Plan your installation location accordingly.

ZBT-1 vs Sonoff ZBDongle-E: which should I choose? Both use the same EFR32MG21 chipset and are well-supported by ZHA and Zigbee2MQTT. The ZBT-1 integrates most seamlessly with Home Assistant’s UI and also supports Thread (separately). The ZBDongle-E is typically less expensive and has a large community troubleshooting base. If you are starting fresh on a Green, the ZBT-1 is the lower-friction choice; if budget is the priority, the ZBDongle-E is equally capable for Zigbee-only use.

Sources