Relays · Head to head

Shelly 1 Gen3 vs Shelly PM Mini Gen3

Full Smart Relays comparison in 2026

Updated October 2026
Data from the official Shelly site.
2026 verdict
The Shelly 1 Gen3 switches circuits that the Shelly PM Mini Gen3 can only measure.
Shelly 1 Gen3
Winner
Shelly 1 Gen3
$22.99
Buy on Amazon USA
The Shelly 1 Gen3 is the more complete device: it has both dry and wet contacts, runs on 110-240V AC or 12-48V DC, carries a 16A rating, supports Matter and reaches Apple HomeKit, Google Home, Alexa, SmartThings and Home Assistant, with on-device scripting for custom logic. The Shelly PM Mini Gen3 deliberately does one thing instead, measuring voltage, current, power and energy on a circuit that already has a working switch, and it does that more precisely than the Shelly 1 Gen3 can, which has no metering at all. Buy the Shelly 1 Gen3 to control something, and the Shelly PM Mini Gen3 to watch something you switch another way.
Winner
Shelly 1 Gen3
Shelly
#9 Best Seller in Relays

Shelly 1 Gen3

Prime exclusive deal
$22.99
Buy on Amazon USA

Also sold in packs

  • Pack of 2$42.98$21.49 per unitYou save $3.00Buy
  • Pack of 4$85.96$21.49 per unitYou save $6.00Buy
Works with
Connectivity
vs
Shelly PM Mini Gen3
Shelly
#8 Best Seller in Relays

Shelly PM Mini Gen3

Prime exclusive deal
$14.49
Buy on Amazon USA

Also sold in packs

  • Pack of 2$27.99$13.99 per unitYou save $0.99Buy
Works with
Connectivity
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FeatureShelly 1 Gen3Shelly PM Mini Gen3Winner
Price$22.99$14.49Shelly PM Mini Gen3
SafetyOverheating protectionNoneShelly 1 Gen3
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThings, Home AssistantShelly 1 Gen3
Energy MonitoringNOYESShelly PM Mini Gen3
Dry Contact ModeYESNOShelly 1 Gen3
Wet Contact ModeYESNOShelly 1 Gen3
Rating4.64.6Tie
Warranty3 years3 yearsTie
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, BluetoothTie
Zigbee RouterNONOTie

What the differences mean

What the device does

The Shelly 1 Gen3 is a switching relay that makes a dumb circuit smart, and its outputs can be wired as dry or wet contacts. The Shelly PM Mini Gen3 does not switch anything at all: it measures a circuit that already has its own switch or outlet.

Energy monitoring

The Shelly PM Mini Gen3 reports power, voltage, current and consumption with high precision, which is its whole purpose. The Shelly 1 Gen3 has no energy monitoring, so if tracking usage matters you need a metering device alongside it.

Contacts and load type

The Shelly 1 Gen3 offers dry contact mode, for low-voltage triggers, and wet contact mode, for powering a load directly. The Shelly PM Mini Gen3 has neither, so it cannot drive a relay, a garage door opener or any low-voltage trigger.

Power options

The Shelly 1 Gen3 runs on 110-240V AC or on 12-48V DC, which opens up battery, solar and low-voltage projects. The Shelly PM Mini Gen3 is an AC-only meter rated 110-240V, so DC circuits are out of scope.

Smart home platforms

The Shelly 1 Gen3 supports Matter and works with Apple HomeKit, Google Home, Alexa, SmartThings and Home Assistant. The Shelly PM Mini Gen3 covers Google Home, Alexa, SmartThings and Home Assistant but has no Matter or HomeKit path.

Wiring requirement

On AC power both need a neutral wire, so neither fits a switch box without one. The Shelly 1 Gen3 can sidestep that by running on DC, while the Shelly PM Mini Gen3 has no such option.

Which one to buy if

Winner
Shelly

Shelly 1 Gen3

Prime exclusive deal
$22.99
Buy on Amazon USA
  • + Safety: Overheating protection
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Dry Contact Mode: YES
  • - Price: $22.99 vs $14.49
  • - Energy Monitoring: NO vs YES
Shelly

Shelly PM Mini Gen3

Prime exclusive deal
$14.49
Buy on Amazon USA
  • + Price: $14.49
  • + Energy Monitoring: YES
  • - Safety: None vs Overheating protection
  • - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

What owners say

Owners of both Shelly devices value the same things: a compact body that hides in the box, an app and Home Assistant integration that set up in minutes, and a price that undercuts most rivals. Shelly 1 Gen3 owners talk most about its dry contacts, which they use for garage doors, pumps, irrigation and even to trigger bigger industrial relays, and about scripting or flashing custom firmware for logic the app cannot do; their standard complaint is that it cannot report energy use. Shelly PM Mini Gen3 owners praise how precisely it reads power, voltage and current, and several run several of them to build per-appliance dashboards two floors away; they warn that its terminals suit lighter cables than a full ring main and that it is a meter, not a switch, so buyers who expected control are disappointed.

Frequently Asked Questions

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

The Shelly 1 Gen3, because it can switch a circuit and covers far more platforms, including Matter and Apple HomeKit. The Shelly PM Mini Gen3 is the better buy only when the job is measurement alone and a switch already exists on that circuit.

What is the biggest difference between the Shelly 1 Gen3 and the Shelly PM Mini Gen3?

One switches and one measures. The Shelly 1 Gen3 is a dry and wet contact relay with no energy monitoring, while the Shelly PM Mini Gen3 is an energy meter with no relay at all.

Does the Shelly 1 Gen3 measure energy use?

No. The Shelly 1 Gen3 has no energy or power monitoring. If you want consumption data you need a metering device such as the Shelly PM Mini Gen3 on the same circuit.

Can the Shelly PM Mini Gen3 turn an appliance on and off?

No. The Shelly PM Mini Gen3 is a power meter, not a switch, so it measures a circuit but does not control it. For switching you want the Shelly 1 Gen3.

Who should buy the Shelly 1 Gen3?

DIYers retrofitting an existing circuit, anyone needing dry contacts for a garage door or pump, and households on Matter, Apple HomeKit or Home Assistant that want local, scriptable control.

Who should buy the Shelly PM Mini Gen3?

Anyone who already switches a circuit another way and wants accurate energy data for it, especially for a Home Assistant dashboard tracking individual appliances.

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