Relays · Head to head

Shelly 1PM Gen4 vs Shelly Plus 1PM

Full Smart Relays comparison in 2026

Updated November 2026
Data from the official Shelly site.
2026 verdict
Shelly 1PM Gen4
Winner
Shelly 1PM Gen4
$28.99
Buy on Amazon USA
Generation gap: the Shelly 1PM Gen4 wins this metering-relay comparison on integrations and Zigbee routing, since it supports Matter, Apple HomeKit and Zigbee alongside Wi-Fi and Bluetooth, while the Shelly Plus 1PM stops at Alexa, Google Home, SmartThings and Home Assistant over Wi-Fi. The Gen4 also accepts DC up to 48V. The Shelly Plus 1PM is cheaper and comes with a 3-year warranty and a long reliability record, and both list the same overheating, overvoltage, overcurrent and overpower protection. Both switch 16A on a single channel, both meter power and consumption, both offer dry and wet contact modes, both remember state after a power cut, and both work fully locally with Home Assistant. Choose the Shelly 1PM Gen4 for Matter, HomeKit or Zigbee, and the Shelly Plus 1PM to save money on a protected, proven module.
Winner
Shelly 1PM Gen4
Shelly
#6 Best Seller in Relays

Shelly 1PM Gen4

Prime exclusive deal
$28.99
Buy on Amazon USA

Also sold in packs

  • Pack of 2$55.99$28.00 per unitYou save $1.99Buy
  • Pack of 46% OFF£68.38£72.56£17.09 per unitBuy
Works with
Connectivity
vs
Shelly Plus 1PM
Shelly

Shelly Plus 1PM

36% OFF
Prime exclusive deal
€12.89
€20.11
Buy on Amazon Germany

Also sold in packs

  • Pack of 2£38.78£19.39 per unitBuy
  • Pack of 4€49.00€12.25 per unitYou save €2.56Buy
Works with
Connectivity
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FeatureShelly 1PM Gen4Shelly Plus 1PMWinner
Price$28.99€12.89Shelly Plus 1PM
Connectivity2.4 GHz WiFi, Bluetooth, Zigbee2.4 GHz WiFi, BluetoothShelly 1PM Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThings, Home AssistantShelly 1PM Gen4
Zigbee RouterYESNOShelly 1PM Gen4
Rating4.64.6Tie
Warranty3 years3 yearsTie
SafetyOverheating protection, Overvoltage protection, Overcurrent protection, Overpower protectionOverheating protection, Overvoltage protection, Overcurrent protection, Overpower protectionTie
Relay Channels11Tie
Energy MonitoringYESYESTie
Dry Contact ModeYESYESTie
Wet Contact ModeYESYESTie
Local ControlYESYESTie
Winner
Shelly

Shelly 1PM Gen4

Prime exclusive deal
$28.99
Buy on Amazon USA
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Zigbee Router: YES
  • - Price: $28.99 vs €12.89
Shelly

Shelly Plus 1PM

36% OFF
Prime exclusive deal
€12.89
€20.11
Buy on Amazon Germany
  • + Price: €12.89
  • - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Bluetooth, Zigbee
  • - 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 Plus 1PM?

The Shelly 1PM Gen4 wins overall thanks to its wider connectivity: Matter, Apple HomeKit and Zigbee support on top of Wi-Fi and Bluetooth. The Shelly Plus 1PM is cheaper, and both list the full set of overheating, overvoltage, overcurrent and overpower protections.

What is the biggest difference between the Shelly 1PM Gen4 and the Shelly Plus 1PM?

Protocols. The Shelly 1PM Gen4 can run over Zigbee or Wi-Fi and supports Matter and HomeKit. The Shelly Plus 1PM is Wi-Fi only with no Matter or HomeKit. Both need a neutral at the install point on mains power.

Do both measure energy consumption?

Yes. Both the Shelly 1PM Gen4 and the Shelly Plus 1PM report instantaneous power, voltage and accumulated consumption for the circuit they switch, which is the whole point of the PM designation. Both are also rated for 16A on a single channel.

Which module has better electrical protection?

Neither: the Shelly Plus 1PM and the Shelly 1PM Gen4 both document overheating, overvoltage, overcurrent and overpower protection, so a demanding load such as a water heater is covered the same way on either.

Who should buy the Shelly 1PM Gen4?

Buy the Shelly 1PM Gen4 if you want metering plus modern connectivity: Matter, Apple HomeKit, Zigbee routing and Bluetooth, with a 16A relay that runs from AC or 12-48V DC. It is the more future-proof of the two.

Who should buy the Shelly Plus 1PM?

Buy the Shelly Plus 1PM if you want to spend less on a proven metering relay with the full protection set, dry and wet contact modes, 16A AC or 10A DC switching and a 3-year warranty. Just confirm you do not need Matter or HomeKit.

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