Third Reality Smart Button Review: A Simple Three-Action Zigbee Button That Runs on AAA Batteries
The Third Reality Smart Button is a one-key Zigbee button that sends three actions (press, double press and hold) to a Zigbee hub, which runs whatever scene or automation you assign. It is at its best with Home Assistant and SmartThings, where owners describe quick pairing and reliable presses, and its two AAA batteries are rated for about three years. Alexa works through Echo devices with a built-in Zigbee hub or the Third Reality skill, but that path is where most of the frustration in the reviews comes from. Apple Home and Google Home need the separate Smart Bridge MZ1.
- Home Assistant users
- SmartThings users
- Scene and lamp control
- Guests and family
Pros
- Single, double and long press from one key
- Two AAA batteries rated for about three years
- Pairs easily with Home Assistant (ZHA and Zigbee2MQTT)
- Works with SmartThings and Aeotec hubs
- LED confirms each press
- Mounts with tape or magnetic patches, in four colors
Cons
- Needs a Zigbee hub to work
- Alexa pairing can be unreliable, and Echo treats it as a motion sensor
- Apple Home and Google Home require the Smart Bridge MZ1
- No direct pairing to bulbs and no dimming of its own
- Indoor use only
Who is the Third Reality Smart Button for?
It suits anyone who already runs a Zigbee hub and wants a physical control for things that have no switch: a lamp in a room without a wall switch, a garage door, a goodnight scene by the bed or a simple control for guests who do not use the app. The single key reports a press, a double press and a hold, so one button can run three different actions. It switches no load itself and needs a Zigbee hub or coordinator, such as Home Assistant with ZHA or Zigbee2MQTT, a SmartThings or Aeotec hub, Hubitat, the Third Reality hub or an Echo with a built-in Zigbee hub.
What buyers love
Home Assistant owners are the happiest group: the button pairs straight away in ZHA or Zigbee2MQTT and exposes all three press types for automations. SmartThings owners report the same quick pairing, with the caveat that the driver link printed on the paperwork may be outdated and the current Edge driver is easier to find on Third Reality's forum. Many buyers mention a solid, not hollow, build and a distinct click, and the LED confirms each press. The two AAA batteries are a recurring plus, since they are cheap and easy to replace compared with coin cells, and the rated life is about three years.
What to know before you buy
Alexa is the weak spot. The button can pair directly with Echo devices that have a built-in Zigbee hub (it switches into an Echo pairing mode and shows up as a motion sensor, so Alexa only reacts once every 30 seconds), or reach Alexa through the Third Reality hub and its skill, and several owners report buttons that go unresponsive or need re-pairing. Apple Home and Google Home are only reached through the Third Reality Smart Bridge MZ1, sold separately, which publishes the button to Matter. It does not join Wi-Fi or Tuya Smart Life apps, it has no dimming of its own, and it is rated for indoor use only. Third Reality has also released a newer Smart Button ZB2 with a rechargeable battery.
Is the Third Reality Smart Button worth it?
For a Home Assistant or SmartThings home it is an easy recommendation: three actions per button, a battery that lasts for years, a choice of colors and mounting with tape or the included magnetic patches. One owner felt it now looks dated next to newer buttons, and Alexa-only homes should expect some troubleshooting, but as a dependable scene trigger on a proper Zigbee hub it does exactly what it promises.
Frequently asked questions
Does the Third Reality Smart Button need a hub?
Yes. It is a Zigbee 3.0 device and needs a Zigbee hub or coordinator, such as Home Assistant (ZHA or Zigbee2MQTT), a SmartThings or Aeotec hub, Hubitat, the Third Reality hub or an Echo with a built-in Zigbee hub.
Does the Third Reality Smart Button work with Alexa?
Yes. It pairs directly with Echo devices that have a built-in Zigbee hub after switching it to Echo pairing mode (five presses of the reset button), where Alexa sees it as a motion sensor and can react once every 30 seconds. It can also reach Alexa through the Third Reality hub and its Alexa skill.
Does it work with Apple Home or Google Home?
Only through the Third Reality Smart Bridge MZ1, sold separately, which bridges Third Reality Zigbee devices to Matter so Apple Home and Google Home can see them.
What batteries does it use and how long do they last?
It runs on two AAA batteries, included in the box, which Third Reality rates for about three years of normal use. The LED double blinks red when the battery is low.
How many actions can one button trigger?
Three: a single press, a double press and a hold. Home Assistant also receives the release of a hold as its own event.
Is the Third Reality Smart Button waterproof?
No. Third Reality states it is designed for indoor use only.








