Shelly 1 Mini Gen4 vs Shelly PM Mini Gen3 comparison

Updated July 2026

Data from Amazon and official Shelly site.

2026 verdict

These two Shelly minis look alike but do opposite jobs, and the Shelly 1 Mini Gen4 wins this smart relay comparison with far broader connectivity, more listed safety protection and richer integrations. It is a true switching relay: Wi-Fi, Bluetooth, Zigbee and Matter, dry and wet contacts, a Zigbee router role, overheating protection and support for Alexa, Google Home, Apple HomeKit, SmartThings and Home Assistant. The Shelly PM Mini Gen3 is the more affordable and higher-rated unit, but it is a dedicated energy monitor, not a switch: it measures a circuit's power, voltage and consumption without turning it on or off. Buy the Mini Gen4 if you actually want to control a load; choose the PM Mini Gen3 only when you just need to meter a circuit and feed the data to Home Assistant.

Winner

Shelly

Shelly 1 Mini Gen4

$24.98

Buy on Amazon USA

Shelly

Shelly PM Mini Gen3

30% OFF

$10.14

$14.49

Buy on Amazon USA

Feature	Shelly 1 Mini Gen4	Shelly PM Mini Gen3	Winner
Price	$24.98	$10.14	Shelly PM Mini Gen3
Rating	4.5	4.6	Shelly PM Mini Gen3
Max Resistive Load Power (Per Channel)	2000W	3840W	Shelly PM Mini Gen3
Safety	Overheating protection	None	Shelly 1 Mini Gen4
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Home Assistant	Shelly 1 Mini Gen4
Energy Monitoring	NO	YES	Shelly PM Mini Gen3
Dry Contact Mode	YES	NO	Shelly 1 Mini Gen4
Wet Contact Mode	YES	NO	Shelly 1 Mini Gen4
Zibgee Router	YES	NO	Shelly 1 Mini Gen4
Warranty	3 years	3 years	Tie
Connectivity	Bluetooth, Zigbee	2.4 GHz WiFi, Bluetooth	Tie
Power Off Memory	NO	NO	Tie

Winner

Shelly

Shelly 1 Mini Gen4

$24.98

Buy on Amazon USA

+ Safety: Overheating protection
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
+ Dry Contact Mode: YES
- Price: $24.98 vs $10.14
- Rating: 4.5 vs 4.6

Shelly

Shelly PM Mini Gen3

30% OFF

$10.14

$14.49

Buy on Amazon USA

+ Price: $10.14
+ Rating: 4.6
+ Max Resistive Load Power (Per Channel): 3840W
- Safety: None vs Overheating protection
- Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

Which should I buy, the Shelly 1 Mini Gen4 or the Shelly PM Mini Gen3?

It depends on the job, but for most people the Shelly 1 Mini Gen4 is the answer because it switches circuits on and off with Wi-Fi, Zigbee and Matter. The Shelly PM Mini Gen3 only measures energy, so pick it solely if you want monitoring without control.

What is the biggest difference between these two relays?

One switches, one measures. The Shelly 1 Mini Gen4 is a switching relay with dry and wet contacts and multi-protocol control, while the Shelly PM Mini Gen3 is a power meter that tracks consumption on a circuit but cannot turn it on or off.

Which one has more connectivity and integrations?

The Shelly 1 Mini Gen4, by a wide margin. It adds Bluetooth, Zigbee and Matter with a Zigbee router role and works with Apple HomeKit, Alexa, Google Home, SmartThings and Home Assistant. The PM Mini Gen3 is a simpler Wi-Fi and Bluetooth meter without Matter.

Who should buy the Shelly 1 Mini Gen4?

Buy the Shelly 1 Mini Gen4 if you want to control a light, garage door or appliance and want modern radios such as Zigbee and Matter plus Apple HomeKit support, all in a tiny module that fits crowded switch boxes.

Who should buy the Shelly PM Mini Gen3?

Buy the Shelly PM Mini Gen3 only if you specifically want to monitor a single circuit's energy use, for example an appliance or caravan hookup, and feed accurate readings into a Home Assistant dashboard. It will not switch anything.

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