Relays · Head to head

Shelly 1 Gen4 vs Shelly 1PM Gen4

Full Smart Relays comparison in 2026

Updated June 2026
Data from Amazon and official Shelly site.
2026 verdict
For most buyers in 2026, Shelly 1 Gen4 is the safer pick over Shelly 1PM Gen4 because of price and safety. It builds its lead on price and safety, then backs it up with a stronger showing on its broader overall balance. You should still consider Shelly 1PM Gen4 if rating and energy monitoring matters more than raw overall balance. In practical terms, Shelly 1 Gen4 is the easier product to recommend.
vs
FeatureShelly 1 Gen4Shelly 1PM Gen4Winner
Price$24.99$28.99Shelly 1 Gen4
Rating4.44.6Shelly 1PM Gen4
SafetyOverheating protectionNoneShelly 1 Gen4
Energy MonitoringNOYESShelly 1PM Gen4
ConnectivityBluetooth, ZigbeeBluetooth, ZigbeeTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Relay Channels11Tie
Power Off MemoryNONOTie
Dry Contact ModeYESYESTie
Wet Contact ModeYESYESTie
Zibgee RouterYESYESTie

Frequently Asked Questions (FAQ)

Which is better overall: Shelly 1 Gen4 or Shelly 1PM Gen4?
Shelly 1 Gen4 has the stronger overall profile in this comparison, especially for price and safety.
What is the biggest difference between Shelly 1 Gen4 and Shelly 1PM Gen4?
Price is one of the clearest differences: Shelly 1 Gen4 lists $24.99, while Shelly 1PM Gen4 lists $28.99.
Which one looks better on price?
Shelly 1 Gen4 is listed at $24.99, while Shelly 1PM Gen4 is listed at $28.99. Shelly 1 Gen4 (better spec).
Who should buy Shelly 1 Gen4?
Choose Shelly 1 Gen4 if your priority is price and safety and that matters more than rating.
Who should buy Shelly 1PM Gen4?
Choose Shelly 1PM Gen4 if your priority is rating and energy monitoring and that matters more than price.
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