Shelly 1PM Gen4 vs PM Mini Gen3 (2026): Which to Buy?

Updated September 2026

Data from Amazon and official Shelly site.

2026 verdict

The Shelly 1PM Gen4 wins this smart relay comparison decisively, because it does everything the PM Mini does and far more: it switches a circuit as well as measures it.

Winner

Shelly 1PM Gen4

$28.99

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On top of energy monitoring, it brings Wi-Fi, Bluetooth, Zigbee and Matter with a Zigbee router role, dry and wet contacts, a 16A rating and support for Alexa, Google Home, Apple HomeKit, SmartThings and Home Assistant. The Shelly PM Mini Gen3 is the cheaper option and a neat, accurate energy monitor, but it only meters a circuit and cannot turn it on or off, and it lacks Matter. Choose the 1PM Gen4 when you want to control and measure a load together; pick the PM Mini Gen3 only for pure monitoring on a budget.

Winner

Shelly

Shelly 1PM Gen4

$28.99

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Shelly

Shelly PM Mini Gen3

$14.49

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Feature	Shelly 1PM Gen4	Shelly PM Mini Gen3	Winner
Price	$28.99	$14.49	Shelly PM Mini Gen3
Safety	Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection	None	Shelly 1PM Gen4
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Samsung SmartThings, Home Assistant	Shelly 1PM Gen4
Dry Contact Mode	YES	NO	Shelly 1PM Gen4
Wet Contact Mode	YES	NO	Shelly 1PM Gen4
Zibgee Router	YES	NO	Shelly 1PM Gen4
Rating	4.6	4.6	Tie
Connectivity	Bluetooth, Zigbee	2.4 GHz WiFi, Bluetooth	Tie
Energy Monitoring	YES	YES	Tie
Power Off Memory	NO	NO	Tie

Winner

Shelly

Shelly 1PM Gen4

$28.99

Buy on Amazon USACheck price

+ Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
+ Dry Contact Mode: YES
- Price: $28.99 vs $14.49

Shelly

Shelly PM Mini Gen3

$14.49

Buy on Amazon USACheck price

+ Price: $14.49
- Safety: None vs Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
- Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

Which is better overall: Shelly 1PM Gen4 or Shelly PM Mini Gen3?

The Shelly 1PM Gen4 is far more capable. It both switches and meters a circuit, with multi-protocol radios, a 16A rating and broad platform support. The Shelly PM Mini Gen3 only measures energy, so it wins only on being cheaper.

What is the biggest difference between these two?

Control. The Shelly 1PM Gen4 switches a load on and off while monitoring its power, whereas the Shelly PM Mini Gen3 is a monitoring-only device that reports consumption but cannot control the circuit.

Which one has more connectivity and integrations?

The Shelly 1PM Gen4, by a wide margin. It adds Zigbee, Matter and 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 1PM Gen4?

Buy the Shelly 1PM Gen4 if you want to control a circuit and track its energy use at once, with Zigbee, Matter and HomeKit support and a 16A rating, for appliances like water heaters, boilers and furnaces.

Who should buy the Shelly PM Mini Gen3?

Buy the Shelly PM Mini Gen3 only if you want the cheapest way to monitor a single circuit's energy use and feed it into Home Assistant, and you have no need to switch that circuit on or off.

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