Relays · Head to head

Shelly 1PM Gen4 vs Shelly 2PM Gen4

Full Smart Relays comparison in 2026

Updated June 2026
Data from Amazon and official Shelly site.
2026 verdict
Shelly 1PM Gen4 edges out Shelly 2PM Gen4 in 2026, led by price, dry contact mode, and wet contact mode. It wins the broader comparison through price, dry contact mode, and wet contact mode, while its broader overall balance helps confirm the result. Shelly 2PM Gen4 remains a niche alternative if safety matters more than the rest of the comparison. That is why Shelly 1PM Gen4 wins the verdict here.
FeatureShelly 1PM Gen4Shelly 2PM Gen4Winner
Price$28.99$38.99Shelly 1PM Gen4
SafetyNoneOverheating protection, Overvoltage protection, Overcurrent protection, Overpower protectionShelly 2PM Gen4
Dry Contact ModeYESNOShelly 1PM Gen4
Wet Contact ModeYESNOShelly 1PM Gen4
Relay Channels12Different strengths
Rating4.64.6Tie
ConnectivityBluetooth, ZigbeeBluetooth, ZigbeeTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Energy MonitoringYESYESTie
Power Off MemoryNONOTie
Zibgee RouterYESYESTie

Frequently Asked Questions (FAQ)

Which is better overall: Shelly 1PM Gen4 or Shelly 2PM Gen4?
Shelly 1PM Gen4 has the stronger overall profile in this comparison, especially for price, dry contact mode, and wet contact mode.
What is the biggest difference between Shelly 1PM Gen4 and Shelly 2PM Gen4?
Price is one of the clearest differences: Shelly 1PM Gen4 lists $28.99, while Shelly 2PM Gen4 lists $38.99.
Which one looks better on price?
Shelly 1PM Gen4 is listed at $28.99, while Shelly 2PM Gen4 is listed at $38.99. Shelly 1PM Gen4 (better spec).
Who should buy Shelly 1PM Gen4?
Choose Shelly 1PM Gen4 if your priority is price and dry contact mode and that matters more than safety.
Who should buy Shelly 2PM Gen4?
Choose Shelly 2PM Gen4 if your priority is safety and that matters more than price.
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