Sonoff SNZB-01P Review: The Cheap Zigbee Button Home Assistant Users Keep Recommending
The Sonoff SNZB-01P is a budget-friendly single-key Zigbee button that turns a single, double or long press into three separate actions, runs up to five years on a CR2477 coin cell and snaps onto a magnetic wall plate. It shines with Home Assistant (ZHA or Zigbee2MQTT), SmartThings and SONOFF's own hubs, where owners describe it as fast and reliable. The trade-off is that it needs one of those hubs: it cannot bind straight to lights, Google Home cannot use it, and Alexa only runs routines from it through a SONOFF Zigbee hub.
- Home Assistant users
- Budget smart homes
- Bedside and doorbell buttons
- SONOFF hub owners
Pros
- Single, double and long press give three actions from one key
- Pairs quickly and stays reliable with Home Assistant (ZHA and Zigbee2MQTT)
- Works with SmartThings hubs and SONOFF hubs, plus Alexa routines through a SONOFF hub
- Up to 5 years of battery life on a CR2477 cell
- Magnetic mount on a metal plate that sticks or screws to the wall
- Very low price for a Zigbee 3.0 button
Cons
- Needs a compatible Zigbee hub; Echo, Hue and IKEA gateways are not supported
- No direct Zigbee binding to lights
- Google Home cannot use it
- Magnet hold can be knocked off the plate
- Battery cover is awkward to open
Who is the Sonoff SNZB-01P for?
It is for anyone who already runs a Zigbee coordinator and wants a physical control anywhere without wiring: next to the bed, at the front door as a doorbell, on a desk or inside a cupboard. Owners use it to switch LED strips and Hue lights, start heating zones, open a gate through an Alexa routine or set a do-not-disturb scene. Because the single key reports three press types, one button can run three different automations.
What buyers love
The most consistent praise comes from Home Assistant users: the button pairs at once with ZHA and Zigbee2MQTT, every press type shows up as its own action and the connection stays stable for weeks. Many owners call it one of the best values among Zigbee buttons and say it feels solid for the price. The metal plate in the box, which sticks on with adhesive or takes a small screw, lets the button be lifted off and used as a handheld remote, a detail several buyers single out. SmartThings owners report it pairs directly with their hub with no extra app.
What to know before you buy
It needs a Zigbee hub, and not every hub gets the presses: SONOFF says Echo, Philips Hue, IKEA and Fritzbox gateways are not supported, and owners who paired it to an Echo or a Smart Life hub found it listed but unusable. Zigbee2MQTT notes that it cannot bind directly to lights, so it stops working when the hub is down. Google Home cannot use it, Alexa only gets it as a routine trigger through a SONOFF Zigbee hub, and in Apple Home it arrives through a SONOFF Matter bridge. A few buyers mention that the magnet lets it get knocked off the plate, that the battery cover is fiddly to open, and that the click is loud. A handful report dropped connections, usually fixed by a reset or a closer router.
Is the Sonoff SNZB-01P worth it?
For a Home Assistant, SmartThings or SONOFF setup, yes: three actions from one key, a coin cell rated for up to five years, an LED that confirms each press, OTA updates through the supported hubs and a two-year warranty from SONOFF's own store, all at a rock-bottom price. If your smart home is built around Google Home, an Echo hub or a Hue Bridge, look at a button made for that ecosystem instead.
Frequently asked questions
Does the Sonoff SNZB-01P need a hub?
Yes. It is a Zigbee 3.0 end device and needs a Zigbee coordinator such as a SONOFF Zigbee Bridge Pro or Ultra, NSPanel Pro, iHost, a SmartThings Hub v3 or a Zigbee dongle with Home Assistant. It cannot bind directly to lights.
Does the Sonoff SNZB-01P work with Home Assistant?
Yes. It works through both ZHA and Zigbee2MQTT, which report single, double and long press as separate actions, along with the battery level.
Does it work with Alexa, Google Home or Apple Home?
Alexa can use it as a routine trigger when it is paired to a SONOFF Zigbee hub; an Echo's built-in Zigbee hub is not supported. Apple Home gets it through a SONOFF Matter bridge (Zigbee Bridge Ultra, iHost or NSPanel Pro) with all three press types. Google Home cannot use it.
What battery does the SNZB-01P use and how long does it last?
It runs on one CR2477 coin cell, which SONOFF rates for up to 5 years based on about ten presses an hour.
How do you mount the SNZB-01P?
A metal plate in the box sticks to the wall with adhesive or a screw, and the button attaches to it magnetically, so it can be lifted off and carried around like a remote.











