Shelly or THIRDREALITY? Smart Home Controllers Compared in 2026
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This shelly vs THIRDREALITY smart home controller comparison looks at two very different tools for 2026. You might choose the Shelly 1PM Gen4 to monitor and switch high-power appliances directly. You might pick the THIRDREALITY button for simple, battery-powered scene control. Both connect to major hubs, but their roles in your system differ greatly. One handles heavy electrical loads, while the other offers quick, wireless triggers.
Key differences
| Aspect | Shelly 1PM Gen4 16A Smart Relay | THIRDREALITY Zigbee Smart Button |
|---|---|---|
| Connectivity | Wi-Fi, Zigbee, Matter, Bluetooth | Zigbee 3.0 |
| Smart Home Compatibility | Alexa, Google Home, Home Assistant | Home Assistant, HomeKit, SmartThings |
| Power Source | Hardwired (16A relay) | 2 AAA Batteries |
| Key Function | Power metering and relay switching | Scene controller and remote trigger |
Which one should you choose?
Choose Shelly 1PM Gen4 16A Smart Relay if
- You need to monitor energy use for appliances.
- You want to control devices via Wi-Fi or Matter.
- You prefer a hardwired solution without battery changes.
Choose THIRDREALITY Zigbee Smart Button if
- You want to place a controller anywhere without wiring.
- You rely on Apple HomeKit for automation.
- You need a simple button for daily routines.
Verdict: Choose the Shelly 1PM Gen4 if you need to manage and monitor power-hungry appliances with flexible connectivity options. Select the THIRDREALITY Zigbee button if you want a portable, battery-operated remote for triggering scenes or controlling lights. Your choice depends on whether you need heavy-duty switching or simple, wireless control.
Shelly 1PM vs THIRDREALITY Comparison
Connectivity options
The Shelly 1PM Gen4 offers a versatile mix of Wi-Fi, Zigbee, Matter, and Bluetooth. This allows you to connect directly to your router or use local protocols without a central hub. The THIRDREALITY button relies solely on Zigbee 3.0. This means you must have a compatible Zigbee hub to use it. The Shelly device provides more flexibility for different network setups. You can choose the connection method that fits your existing infrastructure best. The THIRDREALITY option is simpler but requires that specific hub investment.
Smart home compatibility
Both devices support major platforms, but the lists differ slightly. The Shelly 1PM Gen4 works with Amazon Alexa, Google Home, Home Assistant, and Samsung SmartThings. It also includes a Bluetooth gateway feature. The THIRDREALITY button supports SmartThings, Aeotec, Hubitat, Third Reality Smart Hub, and Home Assistant. It also enables Apple HomeKit through a separate Smart Bridge. If you use Alexa or Google Home primarily, the Shelly connects natively. If you prefer HomeKit or Hubitat, the THIRDREALITY button has a clear path to integration.
Power monitoring
The Shelly 1PM Gen4 includes built-in energy monitoring. You can track real-time power consumption for appliances like water heaters or washing machines. This helps you identify energy-hungry devices and optimize usage. The THIRDREALITY button does not have power monitoring capabilities. It is a remote control for scenes and devices. It cannot measure how much electricity your home uses. If you want to see detailed energy data for specific circuits, the Shelly device is the only choice here. The button is strictly for control commands.
Physical installation
The Shelly 1PM Gen4 is a relay switch designed to fit behind wall switches or sockets. It measures 1.65 inches wide and 0.63 inches long. You need to handle electrical wiring for installation. The THIRDREALITY button is a wireless remote. It measures 0.52 inches wide and 3.52 inches long. It uses double-sided tape or magnetic strips for mounting. You do not need to touch any wires. It runs on two AAA batteries. If you want a quick, non-invasive setup, the button is easier. If you are wiring a switch, the Shelly fits that role.
Power source
The Shelly 1PM Gen4 connects directly to your home electrical system. It draws power from the line it controls. It does not use batteries for its main operation. The THIRDREALITY button is battery-powered. It requires two AAA batteries. The manufacturer states the battery life can last up to three years with normal use. This makes the button maintenance-free for long periods. The Shelly requires a constant power source from your wiring. You do not need to worry about battery replacements for the Shelly, but you must have the wiring available.
Choose your Shelly or THIRDREALITY device
You want to monitor appliance energy use
The Shelly 1PM Gen4 includes built-in power metering. You can track real-time consumption for devices like water heaters or washing machines. This feature helps you identify energy-hungry appliances and optimize usage. The THIRDREALITY button offers no energy monitoring, making the Shelly the better choice for tracking power data.
You need a hub-free smart switch
The Shelly 1PM Gen4 connects via Wi-Fi and Bluetooth, requiring no separate hub. It works directly with your router. The THIRDREALITY button requires a Zigbee hub to function. If you prefer a simpler setup without extra hardware, the Shelly device allows for direct connection and easier integration into your existing network.
You want a battery-powered scene controller
The THIRDREALITY button runs on two AAA batteries and lasts up to three years. It offers three control settings for custom scenes. The Shelly device is a relay switch, not a portable remote. If you need a compact, battery-operated button for quick actions, the THIRDREALITY option is the only suitable choice here.
You need Matter and Zigbee support
The Shelly 1PM Gen4 supports Matter, Zigbee, Wi-Fi, and Bluetooth. This provides broad compatibility with modern smart home standards. The THIRDREALITY button only supports Zigbee 3.0. For users seeking future-proof connectivity and multi-protocol support, the Shelly device offers significantly more versatility and integration options.
The products compared
Shelly 1PM Gen4 16A Smart Relay
Best for: multi-protocol smart relay users
- Connectivity
- Wi-Fi, Zigbee, Matter, Bluetooth
- Smart Home Compatibility
- Alexa, Google Home, Home Assistant
- Dimensions
- 0.63 × 1.65 × 1.46 inches
- Weight
- 0.92 ounces
View on Amazon: Shelly 1PM Gen4 16A Smart Relay Affiliate link
The Shelly 1PM Gen4 is a Wi-Fi, Zigbee, and Matter smart relay switch with power metering. It supports 16A loads and includes Bluetooth gateway capabilities. You can control it via the Shelly app or voice assistants like Alexa and Google Home. The compact unit fits behind wall switches. It offers real-time energy monitoring for appliances. This device suits users seeking versatile connectivity and detailed power tracking without a separate hub.
Pros
- Supports Wi-Fi, Zigbee, and Matter protocols
- Includes real-time power consumption monitoring
- Functions as a Bluetooth gateway
- Compatible with Alexa, Google Home, and Home Assistant
- Compact size fits behind most wall switches
Cons
- Available in Non-UL and UL sizes
- Requires Shelly Smart Control app for configuration
- No physical remote control included
Good fit if
- You want a single device with Wi-Fi, Zigbee, and Matter support
- You need to monitor energy usage of specific appliances
- You prefer retrofitting existing wall switches with smart controls
Skip if
- You require a UL-certified model only
- You need a dedicated physical remote control
- You do not want to use a smartphone app for setup
Verdict: Shelly 1PM Gen4 Smart Relay Switch is ideal for users who need multi-protocol connectivity and energy monitoring in a compact form factor. It fits well in homes already using Alexa, Google Home, or Home Assistant ecosystems.
THIRDREALITY Zigbee Smart Button
Best for: ZigBee hub users needing simple scene triggers
- Connectivity
- Zigbee 3.0
- Smart Home Compatibility
- Home Assistant, HomeKit, SmartThings
- Power Source
- 2 AAA Batteries
- Circuit Type
- 3-Way
- Dimensions
- 1.01 × 0.52 × 3.52 inches
- Weight
- 1.44 ounces
View on Amazon: THIRDREALITY Zigbee Smart Button Affiliate link
This is a compact ZigBee 3.0 remote control for smart home scenes. It runs on two AAA batteries and offers a three-year lifespan. You get three control modes: single press, double press, and hold. The device mounts via magnetic strips or double-sided tape. It works with SmartThings, Home Assistant, and HomeKit via a separate bridge. You need a ZigBee hub to use it.
Pros
- ZigBee 3.0 connectivity for low power consumption
- Three control settings: press, double press, and hold
- Magnetic and adhesive mounting options included
- Compatible with SmartThings and Home Assistant
- Three-year battery life on two AAA cells
Cons
- Requires a separate ZigBee hub to function
- No native Wi-Fi or Bluetooth connectivity
- Apple HomeKit support needs a separate Smart Bridge
Good fit if
- You want a simple physical trigger for routines
- You already use a ZigBee hub like SmartThings
- You prefer battery-powered devices over wired switches
Skip if
- You need direct Wi-Fi control without a hub
- You want native Apple HomeKit support without extra gear
- You prefer a device with a built-in display
Verdict: THIRDREALITY ZigBee Smart Button is a practical scene controller for users who already have a ZigBee hub and want a reliable physical trigger for daily routines. It suits those who value battery life and flexible mounting over direct app control.
Specifications side by side
| Spec | Shelly 1PM Gen4 16A Smart Relay | THIRDREALITY Zigbee Smart Button |
|---|---|---|
| Connectivity | Wi-Fi, Zigbee, Matter, Bluetooth | Zigbee 3.0 |
| Smart Home Compatibility | Alexa, Google Home, Home Assistant | Home Assistant, HomeKit, SmartThings |
| Power Source | not stated | 2 AAA Batteries |
| Circuit Type | not stated | 3-Way |
| Dimensions | 0.63 × 1.65 × 1.46 inches | 1.01 × 0.52 × 3.52 inches |
| Weight | 0.92 ounces | 1.44 ounces |
| Size | Non UL | 1x3.54x0.59 |
| Model | 3800238070717 | 850001595575 |
| Color | not stated | White |
Frequently asked questions
Does Shelly support Matter?
Yes, the Shelly 1PM Gen4 supports Matter. It also connects via Wi-Fi, Zigbee, and Bluetooth. This multi-protocol setup lets you integrate it with major smart home ecosystems. You can link it to Alexa, Google Home, or Home Assistant. This flexibility helps you choose the best connection method for your network.
Is the THIRDREALITY button compatible with Home Assistant?
Yes, the THIRDREALITY Zigbee Smart Button works with Home Assistant. It is also compatible with SmartThings. Both platforms support its Zigbee connectivity. This makes it a reliable choice for users who already have a Zigbee hub. You can use it to trigger scenes or routines without needing a separate app.
Can I monitor energy usage with Shelly?
Yes, the Shelly 1PM Gen4 includes built-in power metering. You can track real-time energy consumption for connected appliances. This feature helps you identify energy-hungry devices. You can monitor usage for items like water heaters or washing machines. This data allows you to optimize your home energy efficiency effectively.
Does the THIRDREALITY button require a hub?
Yes, the THIRDREALITY Zigbee Smart Button relies solely on Zigbee connectivity. It does not connect directly via Wi-Fi or Bluetooth. You need a compatible Zigbee hub to use it. This makes it ideal for users who already have a hub in place. It serves as a simple, battery-powered trigger for daily routines.
What is the size of the Shelly 1PM Gen4?
The Shelly 1PM Gen4 measures 1.65 inches in width, 1.46 inches in height, and 0.63 inches in length. It weighs 0.92 ounces. This compact form factor allows it to fit easily into standard electrical boxes. It is designed to be discreet while providing robust smart relay functionality for your home.
Is the THIRDREALITY button battery powered?
Yes, the THIRDREALITY Zigbee Smart Button is battery-powered. It weighs 1.44 ounces and measures 3.52 inches in height. Its design prioritizes battery life over direct app control. This allows for flexible mounting in various locations. You can place it where it is most convenient for triggering scenes without worrying about wiring.