Shelly 1PM Mini Gen4 Smart vs Shelly Plus 1 UL Relay (2026): Key Differences
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Comparing the shelly 1pm mini gen4 smart vs plus 1 ul reveals two distinct approaches to home automation. Both devices offer Wi-Fi connectivity and require no hub for setup. They also share a compact form factor for behind-the-switch installation. The main difference lies in their connectivity options and load capacity. The Mini Gen4 adds Zigbee and Matter support, while the Plus 1 UL offers higher current handling and dry contacts. You need to choose based on your specific smart home ecosystem and appliance needs.
Key differences
| Aspect | Shelly 1PM Mini Gen4 Smart Relay Switch | Shelly Plus 1 UL Relay Switch |
|---|---|---|
| Connectivity | Wi-Fi, Zigbee, Matter | Wi-Fi, Bluetooth |
| Maximum Load | 8A | 15A |
| Output Type | Standard relay | Dry contacts (potential-free) |
| Certification | Not listed | UL-certified |
| Dimensions | 1.34 x 1.14 x 0.63 inches | 1.46 x 0.63 x 1.65 inches |
Which one should you choose?
Choose Shelly 1PM Mini Gen4 Smart Relay Switch if
- You want Matter and Zigbee compatibility for broader smart home integration.
- You need precise power monitoring for energy tracking.
- You prefer a slightly smaller width for tight electrical boxes.
Choose Shelly Plus 1 UL Relay Switch if
- You control high-power appliances requiring up to 15A.
- You need dry contacts for specialized wiring scenarios.
- You want UL certification for added safety assurance.
Verdict: Choose the Shelly 1PM Mini Gen4 if you value modern connectivity standards like Matter and Zigbee, along with energy monitoring. Select the Shelly Plus 1 UL if you need to handle higher electrical loads or require dry contacts for complex installations. Both devices offer reliable Wi-Fi control without a hub.
Shelly 1PM Mini Gen4 vs Plus 1
Maximum Load Capacity
The Shelly Plus 1 UL Relay Switch handles up to 15A of current. This higher limit allows you to connect more powerful appliances, such as larger room heaters or garage door motors, without worrying about overloading the circuit. The Shelly 1PM Mini Gen4 Smart Relay Switch is rated for 8A. This lower limit is sufficient for smaller devices like fans, lights, and kitchen gadgets. If you need to control high-power equipment, the Plus 1 offers greater flexibility. For low-power loads, both devices perform adequately.
Connectivity Protocols
The Shelly 1PM Mini Gen4 supports Wi-Fi, Zigbee, and Matter. This combination allows it to connect directly to your network while also integrating with other Zigbee devices or Matter-based ecosystems. The Shelly Plus 1 UL Relay Switch uses Wi-Fi and Bluetooth. It acts as a Bluetooth gateway but lacks native Zigbee or Matter support. If you rely on a Matter-enabled hub or Zigbee sensors, the Mini Gen4 is the better choice. For simple Wi-Fi and Bluetooth control, the Plus 1 is sufficient.
Certification and Safety
The Shelly Plus 1 UL Relay Switch carries UL certification. This indicates it has been tested and meets specific safety standards for electrical devices in the United States. The product data for the Shelly 1PM Mini Gen4 Smart Relay Switch does not mention UL certification. When installing devices behind wall plates or inside appliances, certified hardware provides an extra layer of assurance. If safety certification is a priority for your installation, the Plus 1 has a clear advantage over the Mini Gen4.
Output Type
The Shelly Plus 1 UL Relay Switch features potential-free outputs, also known as dry contacts. This design allows it to control circuits with different voltage levels, making it suitable for diverse applications like doorbells or irrigation systems. The Shelly 1PM Mini Gen4 Smart Relay Switch does not list dry contacts in its specifications. It operates as a standard relay switch. If you need to interface with low-voltage devices or require electrical isolation, the Plus 1 offers more versatility than the Mini Gen4.
Power Monitoring
The Shelly 1PM Mini Gen4 Smart Relay Switch includes precise power monitoring. You can view real-time and historical energy data to track usage and identify inefficient devices. The product data for the Shelly Plus 1 UL Relay Switch does not mention power monitoring capabilities. If you want to save energy by tracking consumption or detecting anomalies, the Mini Gen4 is the superior option. The Plus 1 focuses on switching functionality without energy measurement features.
Which Shelly Relay Fits Your Needs?
Users wanting Matter and Zigbee support
The Shelly 1PM Mini Gen4 supports Matter, Zigbee, and Wi-Fi. This multi-protocol connectivity allows it to integrate with modern smart home ecosystems without a hub. If you rely on Zigbee devices or want future-proof Matter compatibility, this switch offers the broadest protocol support for seamless automation.
Users controlling high-power appliances
The Shelly Plus 1 UL handles up to 15A of current. This higher load capacity makes it suitable for more powerful devices like garage door motors or larger heaters. If your appliances draw significant power, this relay provides the necessary electrical headroom to operate them safely and reliably.
Users needing dry contacts or Bluetooth
The Shelly Plus 1 UL features potential-free dry contacts and a Bluetooth gateway. These specs offer flexibility for voltage support and local control. If you require dry contacts for specific wiring setups or want to use Bluetooth for local setup and control, this device provides those specific hardware advantages.
The products compared
Shelly 1PM Mini Gen4 Smart Relay Switch
Best for: monitoring small appliances with Matter support
- Smart Home Compatibility
- Alexa, SmartThings, Google Home, Matter
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Zigbee
- Switch Function
- Smart Switch
- Maximum Load
- 8A
- Dimensions
- 0.63 × 1.34 × 1.14 inches
View on Amazon: Shelly 1PM Mini Gen4 Smart Relay Switch Affiliate link
The Shelly 1PM Mini Gen4 is a compact smart relay switch supporting Wi-Fi, Zigbee, and Matter. It handles loads up to 8A and includes real-time power monitoring. The device requires no hub and features a small form factor measuring 1.34 by 1.14 by 0.63 inches. It suits users who need precise energy tracking for small appliances like fans or kitchen gadgets. The 2-pack option allows for multi-point control.
Pros
- Supports Matter, Wi-Fi, and Zigbee protocols
- Real-time power monitoring up to 8A
- No hub required for setup
- Compact dimensions of 1.34 inches wide
Cons
- Maximum load limited to 8A
- Single-channel operation only
- No physical display on the unit
Good fit if
- You need Matter compatibility for future-proofing
- You want to monitor energy usage of small appliances
- You prefer a hub-free installation
Skip if
- You require control for high-power devices over 8A
- You need a multi-channel relay for one box
- You want a device with a built-in screen
Verdict: Shelly 1PM Mini Gen4 Smart Switch offers Matter support and power monitoring in a tiny package. It is ideal for users managing low-power appliances who want precise energy data without a hub.
Shelly Plus 1 UL Relay Switch
Best for: Single-circuit automation with dry contacts
- Smart Home Compatibility
- Alexa, SmartThings, Google Home
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Bluetooth
- Switch Function
- Relay Switch
- Maximum Load
- 15A
- Dimensions
- 1.65 × 1.46 × 0.63 inches
View on Amazon: Shelly Plus 1 UL Relay Switch Affiliate link
The Shelly Plus 1 UL is a Wi-Fi smart relay switch with a 15A maximum load. It features potential-free dry contacts for flexible voltage support. The unit includes Bluetooth gateway capabilities and acts as a Wi-Fi repeater. It fits behind standard wall switches and requires no hub. You get remote control via the Shelly app and compatibility with major voice assistants.
Pros
- 15A maximum load capacity
- Potential-free dry contacts for high flexibility
- Built-in Wi-Fi repeater and Bluetooth gateway
- UL-certified safety rating
- No hub required for setup
Cons
- Single channel limits multi-device control
- No Zigbee or Matter support listed
- Limited to 15A load capacity
Good fit if
- You need a UL-certified relay for garage or irrigation systems
- You want to use potential-free dry contacts for various voltage applications
- You require a Wi-Fi repeater to extend network range
Skip if
- You need to control more than one circuit independently
- You require Zigbee or Matter protocol support
- You need a load capacity higher than 15A
Verdict: Shelly Plus 1 UL Smart Relay offers a UL-certified 15A relay with dry contacts for flexible automation. It fits buyers who need a single-channel solution with Wi-Fi repeater capabilities and no hub requirement.
Specifications side by side
| Spec | Shelly 1PM Mini Gen4 Smart Relay Switch | Shelly Plus 1 UL Relay Switch |
|---|---|---|
| Smart Home Compatibility | Alexa, SmartThings, Google Home, Matter | Alexa, SmartThings, Google Home |
| Hub Requirement | No Hub Required | No Hub Required |
| Connectivity | Wi-Fi, Zigbee | Wi-Fi, Bluetooth |
| Switch Function | Smart Switch | Relay Switch |
| Maximum Load | 8A | 15A |
| Dimensions | 0.63 × 1.34 × 1.14 inches | 1.65 × 1.46 × 0.63 inches |
| Weight | 0.71 ounces | 0.96 ounces |
| Model | 3800238070809 | 3800235265529 |
| Size | not stated | 1 Pack |
| Color | not stated | Blue |
Frequently asked questions
Does the Shelly 1PM Mini Gen4 support Matter?
Yes, the Shelly 1PM Mini Gen4 supports Matter. This allows it to integrate with modern smart home ecosystems without requiring a separate hub. You can use it with devices that rely on Matter, Zigbee, or Wi-Fi for connectivity. This multi-protocol support makes it flexible for users managing low-power appliances who want precise energy data.
What is the maximum current load for the Shelly Plus 1?
The Shelly Plus 1 UL Relay Switch handles up to 15A of current. This higher limit allows you to connect more powerful appliances, such as larger room heaters or garage door motors. It is designed for single-circuit automation with dry contacts, making it suitable for buyers who need a robust single-channel solution without a hub.
Is the Shelly 1PM Mini Gen4 compatible with Zigbee?
Yes, the Shelly 1PM Mini Gen4 is compatible with Zigbee. It also supports Matter and Wi-Fi connectivity. This multi-protocol setup allows it to integrate with modern smart home ecosystems without a hub. If you rely on Zigbee devices or want to monitor small appliances with precise energy data, this device fits your needs.
Does the Shelly Plus 1 require a hub?
No, the Shelly Plus 1 does not require a hub. It offers Wi-Fi repeater capabilities and connects directly to your network. This makes it ideal for buyers who need a single-channel solution with dry contacts. You can use it with Alexa, Google Home, or SmartThings for flexible automation without additional hardware.
How big is the Shelly 1PM Mini Gen4?
The Shelly 1PM Mini Gen4 measures 1.34 inches in width, 1.14 inches in height, and 0.63 inches in length. It weighs 0.71 ounces. This tiny package is ideal for users managing low-power appliances who want precise energy data. Its compact size makes it easy to install behind switches or in tight spaces.
What smart home platforms does the Shelly Plus 1 work with?
The Shelly Plus 1 works with Alexa, Google Home, and SmartThings. It offers Bluetooth and Wi-Fi connectivity for setup. This compatibility allows you to control your single-circuit automation through various platforms. It is a flexible choice for buyers who need a UL-certified 15A relay with dry contacts and no hub requirement.