Relays · Head to head

Shelly 1 Gen4 vs Switchbot Relay Switch 1PM

Full Smart Relays comparison in 2026

Updated October 2026
Data from Amazon and official Shelly and SwitchBot sites.
2026 verdict
When you want to see what a circuit draws, the Switchbot Relay Switch 1PM has the edge, since it measures energy use and adds overcurrent protection that the Shelly 1 Gen4 does not list.
Switchbot Relay Switch 1PM
Winner
Switchbot Relay Switch 1PM

Last recorded price€21.99

Currently unavailable on Amazon Germany
See on Amazon Germany
Otherwise the two are close: both are 16 A, single channel relays with dry and wet contacts, a neutral wire requirement, Wi-Fi, Bluetooth and Matter. The Shelly 1 Gen4 counters with a 3 year warranty against 1 year, OTA updates, and a Zigbee mode where it repeats the signal for other devices, none of which the Switchbot Relay Switch 1PM offers. The Switchbot Relay Switch 1PM also keeps wireless switch mode and power-off memory. Pick the Switchbot Relay Switch 1PM for appliances and circuits you want to track, and the Shelly 1 Gen4 for a Zigbee network, longer coverage and firmware updates.
Shelly 1 Gen4
Shelly
#4 Best Seller in Relays

Shelly 1 Gen4

Prime exclusive deal
$24.99
33% above its lowest price of the last 6 months ($18.74)
5% above its lowest price of the last 6 months (€17.91)

Last recorded price

Buy on Amazon USA

Also sold in packs

  • Pack of 2$48.99$24.50 per unitYou save $0.99Buy
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FeatureShelly 1 Gen4Switchbot Relay Switch 1PMWinner
Rating4.44.2Shelly 1 Gen4
Warranty3 years1 yearShelly 1 Gen4
SafetyOverheating protectionOverheating protection, Overcurrent protectionSwitchbot Relay Switch 1PM
Connectivity2.4 GHz WiFi, Bluetooth, Zigbee2.4 GHz WiFi, BluetoothShelly 1 Gen4
Energy MonitoringNOYESSwitchbot Relay Switch 1PM
Zigbee RouterYESNOShelly 1 Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Relay Channels11Tie
Dry Contact ModeYESYESTie
Wet Contact ModeYESYESTie

What the differences mean

Energy monitoring

The Switchbot Relay Switch 1PM measures power use and reports it in the SwitchBot app. The Shelly 1 Gen4 has no energy monitoring, so you would need a Shelly model with a PM in its name or a separate meter.

Protection

The Switchbot Relay Switch 1PM lists overheating and overcurrent protection. The Shelly 1 Gen4 lists overheating only. Neither documents overvoltage or overpower protection.

Warranty and updates

The Shelly 1 Gen4 has a 3 year warranty and OTA updates. The Switchbot Relay Switch 1PM has 1 year and lists no OTA updates.

Zigbee

The Shelly 1 Gen4 can join a Zigbee network through a hub and repeat the signal, while the Switchbot Relay Switch 1PM has no Zigbee radio and will not pair with a Zigbee-only hub.

Wireless switch mode and power-off memory

The Switchbot Relay Switch 1PM lists both features, which the Shelly 1 Gen4 does not: a wall switch can trigger scenes without cutting the relay, and the last state comes back after a power cut.

Which one to buy if

Shelly

Shelly 1 Gen4

Prime exclusive deal
$24.99

Last recorded price

Buy on Amazon USA
  • + Rating: 4.4
  • + Warranty: 3 years
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
  • - Safety: Overheating protection vs Overheating protection, Overcurrent protection
  • - Energy Monitoring: NO vs YES
Winner
SwitchBot

Switchbot Relay Switch 1PM

Prime exclusive deal

Last recorded price€21.99

Currently unavailable on Amazon Germany
See on Amazon Germany
  • + Safety: Overheating protection, Overcurrent protection
  • + Energy Monitoring: YES
  • - Rating: 4.2 vs 4.4
  • - Warranty: 1 year vs 3 years

What owners say

Owners of both relays like the same basics: quick Home Assistant and Matter setup, dry contacts for garage doors and other trigger circuits, and switching that feels instant. Switchbot Relay Switch 1PM owners single out the energy readings, using them to see an appliance's draw and to get a notice when a washing machine finishes, and the flame-retardant enclosure with overcurrent protection, while they mention needing a SwitchBot account to finish setup, power readings that do not carry over to Matter hubs and screw terminals that dislike thick wire. Shelly 1 Gen4 owners single out schedules that run on the device through an outage and the choice of Wi-Fi, Zigbee or Matter, and they warn about fiddly Zigbee pairing with some hubs and a tight fit in crowded boxes.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Shelly 1 Gen4
  • Switchbot Relay Switch 1PM

Loading price history...

Frequently Asked Questions

Which is better overall: Shelly 1 Gen4 or Switchbot Relay Switch 1PM?

The Switchbot Relay Switch 1PM, thanks to its energy monitoring and overcurrent protection. The Shelly 1 Gen4 is the better choice for a Zigbee network, a 3 year warranty and OTA updates.

What is the difference between the Shelly 1 Gen4 and the Switchbot Relay Switch 1PM?

The Switchbot Relay Switch 1PM adds energy monitoring, overcurrent protection, wireless switch mode and power-off memory. The Shelly 1 Gen4 adds Zigbee, OTA updates and a longer warranty. Both are 16 A single channel relays with Matter.

Does the Shelly 1 Gen4 have energy monitoring?

No. The Shelly 1 Gen4 has none, while the Switchbot Relay Switch 1PM measures power use.

Do the Shelly 1 Gen4 and the Switchbot Relay Switch 1PM work with Apple Home?

Yes, both list Apple Home and Matter, along with Alexa, Google Home, SmartThings and Home Assistant.

Who should buy the Switchbot Relay Switch 1PM?

Buyers who want to track a circuit's power use, get an overcurrent trip and stay inside the SwitchBot app.

Who should buy the Shelly 1 Gen4?

Home Assistant and Zigbee users who want OTA updates and a 3 year warranty, and do not need energy readings from the relay itself.

Full comparison table

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