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Relays · Head to head

Shelly 1 Mini Gen4 vs Shelly 2PM Gen3

Full Smart Relays comparison in 2026

Updated September 2026
Data from Amazon and official Shelly site.
2026 verdict
Two channels, metering and cover control make the Shelly 2PM Gen3 the stronger relay here, despite the older generation number.
Shelly 2PM Gen3
Winner
Shelly 2PM Gen3
$24.99
Buy on Amazon USACheck price
It switches 16A per channel against 8A, runs roller shutters, blinds and garage doors in interlock mode and carries overheating, overvoltage, overcurrent and overpower protection. The Shelly 1 Mini Gen4 is the lower priced and far smaller single-channel relay, 29 x 34 x 16 mm and 19 g, and it adds Zigbee through a hub with Zigbee routing, dry and wet contact modes and a 3-year warranty, but no metering. Both need a neutral and work with Alexa, Google Home, Apple Home, SmartThings, Home Assistant and Matter. Choose the Shelly 2PM Gen3 for covers or two circuits, and the Shelly 1 Mini Gen4 for one light in a crowded box or a Zigbee home.
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FeatureShelly 1 Mini Gen4Shelly 2PM Gen3Winner
Price$24.98$24.99Shelly 1 Mini Gen4
Rating4.54.7Shelly 2PM Gen3
SafetyOverheating protectionOverheating protection, Overvoltage protection, Overcurrent protection, Overpower protectionShelly 2PM Gen3
ConnectivityBluetooth, ZigbeeBluetoothShelly 1 Mini Gen4
Relay Channels12Shelly 2PM Gen3
Energy MonitoringNOYESShelly 2PM Gen3
Zibgee RouterYESNOShelly 1 Mini Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie

What the differences mean

Channels and covers

The Shelly 2PM Gen3 controls two circuits, or one shutter or garage door motor in interlock mode. The Shelly 1 Mini Gen4 controls a single circuit, so a motor that runs both ways is out of its reach.

Energy monitoring

The Shelly 2PM Gen3 meters each channel. The Shelly 1 Mini Gen4 has no energy monitoring.

Size

At 29 x 34 x 16 mm and 19 g, the Shelly 1 Mini Gen4 fits boxes the 37 x 42 x 16 mm, 30 g Shelly 2PM Gen3 will not, which is often what decides a lighting retrofit.

Zigbee

The Shelly 1 Mini Gen4 can join a Zigbee network through a hub and routes for the mesh. The Shelly 2PM Gen3 is Wi-Fi and Bluetooth with Matter.

Load and protection

The Shelly 2PM Gen3 is rated 16A per channel with four protections. The Shelly 1 Mini Gen4 is rated 8A with overheating protection, enough for lighting but not for heavy loads.

Which one to buy if

Shelly

Shelly 1 Mini Gen4

$24.98
Buy on Amazon USACheck price
  • + Price: $24.98
  • + Connectivity: Bluetooth, Zigbee
  • + Zibgee Router: YES
  • - Rating: 4.5 vs 4.7
  • - Safety: Overheating protection vs Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
Winner
Shelly

Shelly 2PM Gen3

$24.99
Buy on Amazon USACheck price
  • + Rating: 4.7
  • + Safety: Overheating protection, Overvoltage protection, Overcurrent protection, Overpower protection
  • + Relay Channels: 2
  • - Price: $24.99 vs $24.98
  • - Connectivity: Bluetooth vs Bluetooth, Zigbee

What owners say

Owners of both Shelly relays describe dependable local control and easy Home Assistant integration. Shelly 2PM Gen3 owners run shutters, blinds and garage doors, praise a Wi-Fi link that holds deep in the wall and per-channel metering, and a minority report a frustrating first pairing, trouble with Alexa and a body thicker than the previous generation. Shelly 1 Mini Gen4 owners single out its size, fitting fixture and switch boxes a standard relay would not, and projects like pool lights, boilers and motion-triggered floodlights; their complaints are tiny printed instructions, no UL or ETL listing and a few units that arrived dead or dropped offline after months.

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 Mini Gen4
  • Shelly 2PM Gen3

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Frequently Asked Questions

Which is better: Shelly 1 Mini Gen4 or Shelly 2PM Gen3?

The Shelly 2PM Gen3 overall, with two metered 16A channels, cover control and full protection. The Shelly 1 Mini Gen4 is the better choice for a single light in a tight box or a Zigbee setup, at a lower price.

Is the Shelly 1 Mini Gen4 the Gen4 version of the Shelly 2PM Gen3?

No. The Shelly 1 Mini Gen4 is a compact single-channel relay without metering, while the Shelly 2PM Gen3 is a two-channel metered relay for covers. The Gen4 name adds Zigbee, not a second channel.

Do the Shelly 1 Mini Gen4 and the Shelly 2PM Gen3 work with Apple Home?

Yes, both support Matter and Apple Home, plus Alexa, Google Home, SmartThings and Home Assistant.

Do they need a neutral wire?

Yes, the Shelly 1 Mini Gen4 and the Shelly 2PM Gen3 both require a neutral.

Who should buy the Shelly 1 Mini Gen4?

DIYers retrofitting single lights in crowded boxes, and Zigbee users who want small mains-powered routers.

Who should buy the Shelly 2PM Gen3?

Anyone automating shutters, blinds, garage doors or two lights from one box, with per-channel metering.

Full comparison table

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