Shelly 2PM Gen3 vs Shelly Plus 1PM comparison

Updated July 2026

Data from Amazon and official Shelly site.

2026 verdict

The Shelly Plus 1PM wins this comparison on the strength of its protection set and wiring options, listing overheating, overvoltage, overcurrent and overpower protection plus dry and wet contact modes and low-voltage DC switching, where the Shelly 2PM Gen3 offers neither documented protections nor dry contacts. It also carries a 3-year warranty. The Shelly 2PM Gen3 is cheaper, better rated and the more modern module, with two independent 16A channels instead of one, interlock mode for shutters and blinds, and Matter and Apple HomeKit support that the Plus 1PM does not have. Both meter their circuits, both need a neutral wire, both run on 2.4GHz Wi-Fi with Bluetooth and work locally with Home Assistant, and both restore state after a power cut. Take the Shelly Plus 1PM for a protected single circuit or a dry-contact job, and the Shelly 2PM Gen3 when you need two channels, a shutter motor or Matter.

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Feature	Shelly 2PM Gen3	Shelly Plus 1PM	Winner
Price	$24.99	$27.49	Shelly 2PM Gen3
Rating	4.7	4.6	Shelly 2PM Gen3
Connectivity	Bluetooth	2.4 GHz WiFi, Bluetooth	Shelly Plus 1PM
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Samsung SmartThings, Home Assistant	Shelly 2PM Gen3
Relay Channels	2	1	Shelly 2PM Gen3
Dry Contact Mode	NO	YES	Shelly Plus 1PM
Wet Contact Mode	NO	YES	Shelly Plus 1PM
Safety	Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection	Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection	Tie
Energy Monitoring	YES	YES	Tie
Power Off Memory	NO	NO	Tie
Zibgee Router	NO	NO	Tie

Shelly

Shelly 2PM Gen3

$24.99

Buy on Amazon USA

+ Price: $24.99
+ Rating: 4.7
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- Connectivity: Bluetooth vs 2.4 GHz WiFi, Bluetooth
- Dry Contact Mode: NO vs YES

Winner

Shelly

Shelly Plus 1PM

$27.49

Buy on Amazon USA

+ Connectivity: 2.4 GHz WiFi, Bluetooth
+ Dry Contact Mode: YES
+ Wet Contact Mode: YES
- Price: $27.49 vs $24.99
- Rating: 4.6 vs 4.7

Frequently Asked Questions

Which is better overall: Shelly 2PM Gen3 or Shelly Plus 1PM?

The Shelly Plus 1PM takes the overall win because of its complete protection set (overheating, overvoltage, overcurrent and overpower), its dry and wet contact modes and its DC switching. The Shelly 2PM Gen3 is cheaper, better rated and offers two channels, interlock mode and Matter and HomeKit support.

What is the biggest difference between the Shelly 2PM Gen3 and the Shelly Plus 1PM?

Channels versus contact flexibility. The Shelly 2PM Gen3 controls two circuits and can interlock them for a shutter motor. The Shelly Plus 1PM controls one, but it can isolate the relay with dry contacts and switch a 30V DC load, and it documents a full set of electrical protections.

Do both measure energy consumption?

Yes. The Shelly 2PM Gen3 meters each of its two channels separately, and the Shelly Plus 1PM meters its single channel, reporting power, voltage and total consumption. Either is a good way to find out what an appliance, heater or lighting circuit actually costs to run.

Which one supports Apple HomeKit?

Only the Shelly 2PM Gen3, which supports Matter and Apple HomeKit as well as Alexa, Google Home and Home Assistant. The Shelly Plus 1PM has no Matter or HomeKit support and reaches those ecosystems only through Home Assistant or another bridge.

Who should buy the Shelly Plus 1PM?

Buy the Shelly Plus 1PM if you want a single metered 16A channel with overheating, overvoltage, overcurrent and overpower protection, dry contact isolation for gates or boilers, optional DC switching and a 3-year warranty. It is the safer-specified module of the two.

Who should buy the Shelly 2PM Gen3?

Buy the Shelly 2PM Gen3 if you need two independent 16A channels, per-channel metering and interlock mode for a roller shutter, blind or gate, plus Matter and Apple HomeKit support. It is the cheaper module here and fits a standard back box with live and neutral.

Full comparison table

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