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

Updated September 2026

Data from Amazon and official Shelly site.

2026 verdict

Winner

$17.99

Despite the near-identical names, these Shelly minis do opposite things, and the Shelly 1 Mini Gen3 wins this smart relay comparison with broader connectivity, more integrations and listed safety protection because it is an actual switching relay. It connects over Wi-Fi with dry and wet contacts, overheating protection, Matter, and support for Alexa, Google Home, SmartThings and Home Assistant, so it can turn a circuit on and off. The Shelly PM Mini Gen3 is the cheaper and slightly higher-rated unit, but it is a pure energy monitor: it measures a circuit's power, voltage and consumption without switching it. Buy the 1 Mini Gen3 if you want to control a load; pick the PM Mini Gen3 only when you just need to meter a circuit and pipe the numbers into Home Assistant.

Winner

Shelly

Shelly 1 Mini Gen3

$17.99

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Shelly

Shelly PM Mini Gen3

$14.49

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Feature	Shelly 1 Mini Gen3	Shelly PM Mini Gen3	Winner
Price	$17.99	$14.49	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 Gen3
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Samsung SmartThings, Home Assistant	Shelly 1 Mini Gen3
Energy Monitoring	NO	YES	Shelly PM Mini Gen3
Dry Contact Mode	YES	NO	Shelly 1 Mini Gen3
Wet Contact Mode	YES	NO	Shelly 1 Mini Gen3
Warranty	3 years	3 years	Tie
Connectivity	2.4 GHz WiFi, Bluetooth	2.4 GHz WiFi, Bluetooth	Tie
Power Off Memory	NO	NO	Tie
Zibgee Router	NO	NO	Tie

Winner

Shelly

Shelly 1 Mini Gen3

$17.99

Buy on Amazon USACheck price

+ Safety: Overheating protection
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
+ Dry Contact Mode: YES
- Price: $17.99 vs $14.49
- Rating: 4.5 vs 4.6

Shelly

Shelly PM Mini Gen3

$14.49

Buy on Amazon USACheck price

+ Price: $14.49
+ Rating: 4.6
+ Max Resistive Load Power (Per Channel): 3840W
- Safety: None vs Overheating protection
- Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

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

For most buyers the Shelly 1 Mini Gen3, because it switches circuits on and off with dry and wet contacts and multi-platform control. The Shelly PM Mini Gen3 only measures energy, so choose it solely when you want monitoring rather than switching.

What is the key difference between these two relays?

One switches, one measures. The Shelly 1 Mini Gen3 is a switching relay that controls a load, while the Shelly PM Mini Gen3 is a dedicated power meter that tracks consumption on a circuit but cannot turn it on or off.

Which one has more integrations and connectivity?

The Shelly 1 Mini Gen3. As a switching relay it supports Matter and integrates with Alexa, Google Home, SmartThings and Home Assistant, with overheating protection listed. The PM Mini Gen3 is a simpler meter without Matter support.

Who should buy the Shelly 1 Mini Gen3?

Buy the Shelly 1 Mini Gen3 if you want to control a light, garage door, sprinkler or other single circuit cheaply over Wi-Fi, using its dry or wet contacts, with Matter and Home Assistant support in a tiny module.

Who should buy the Shelly PM Mini Gen3?

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

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