Plugs · Head to head

Amazon Smart Plug vs Shelly Plug M Gen3

Full Smart Plugs comparison in 2026

Updated October 2026
Data from the official Amazon and Shelly sites.
2026 verdict
A European heater is the load the Shelly Plug M Gen3 is built to switch, which makes it the stronger smart plug of this pair.
Shelly Plug M Gen3
Winner
Shelly Plug M Gen3
€12.90
Buy on Amazon Germany
It handles 3000 W at 13 A on 220 to 240 V, meters voltage, current, power and energy, and reaches Apple Home, Alexa, Google Home, SmartThings and Home Assistant through Matter, backed by a three-year warranty. The Amazon Smart Plug is a Type B, 15 A, 120 V outlet that sets up inside the Alexa app alone, with a lower price and a higher owner rating, but it does not measure energy and stays Alexa-only. The two do not even fit the same wall socket, so pick the Shelly Plug M Gen3 for a Schuko outlet and a heavy appliance, and the Amazon Smart Plug for a North American duplex on Alexa alone.
Amazon Smart Plug
Amazon
#2 Best Seller in Plugs

Amazon Smart Plug

Prime exclusive deal
$24.99
Buy on Amazon USA

Also sold in packs

  • Pack of 214% OFFC$59.99C$69.98C$30.00 per unitYou save C$9.99Buy
  • Pack of 420% OFFC$112.00C$139.96C$28.00 per unitYou save C$27.96Buy
vs
Winner
Shelly Plug M Gen3
Shelly

Shelly Plug M Gen3

Prime exclusive deal
€12.90
Buy on Amazon Germany

Also sold in packs

  • Pack of 2€19.90€9.95 per unitYou save €5.90Buy
  • Pack of 4€37.90€9.47 per unitYou save €13.70Buy
  • Pack of 8€80.90€10.11 per unitYou save €22.30Buy
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FeatureAmazon Smart PlugShelly Plug M Gen3Winner
Price$24.99€12.90Shelly Plug M Gen3
Rating4.74.5Amazon Smart Plug
Warranty1 year3 yearsShelly Plug M Gen3
Energy MonitoringNOYESShelly Plug M Gen3
Connectivity2.4 GHz WiFi2.4 GHz WiFi, BluetoothShelly Plug M Gen3
IntegrationsAlexaGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterShelly Plug M Gen3
Plug FormatType BType FDifferent strengths
Weather ResistanceNONOTie
Zigbee RouterNONOTie

What the differences mean

Socket and mains

The Shelly Plug M Gen3 is a Type F plug for 220 to 240 V. The Amazon Smart Plug is a Type B plug for 120 V. Neither fits the other's wall, so the outlet decides the purchase before any app does.

Energy metering

The Shelly Plug M Gen3 carries a voltmeter, an ammeter and power and energy meters, so it reports what the appliance draws. The Amazon Smart Plug only switches and schedules the load; it has no way to say what that costs to run.

Ecosystem reach

The Shelly Plug M Gen3 is Matter-certified, so Apple Home, Alexa, Google Home and SmartThings can all commission it, and Home Assistant has an official Shelly integration. The Amazon Smart Plug works with Alexa only.

Warranty and published load

The Shelly Plug M Gen3 publishes 3000 W and 13 A with overheating, overvoltage, overcurrent and overpower protection, backed by a three-year warranty. The Amazon Smart Plug publishes 15 A at 120 V and a one-year warranty; its wattage ceiling is not documented.

Which one to buy if

What owners say

Owners of the Amazon Smart Plug describe an Echo finding it within seconds of plugging it in, with no hub, no extra account and nothing to link beyond the Alexa app itself. The most common use is routines: a diffuser or air purifier back on a fixed schedule, lights cycling while the house sits empty so it looks occupied, and several owners specifically praise how reliably it reconnects to Alexa after a power cut with no manual restart. The complaints are about scope rather than reliability: it answers to Alexa alone, there is no way to see what the plugged-in appliance actually draws, and a couple of owners find the body bulkier than rival plugs on a crowded outlet.

Frequently Asked Questions

Which is better overall: Amazon Smart Plug or Shelly Plug M Gen3?

The Shelly Plug M Gen3, when the wall is Type F. It switches up to 3000 W at 13 A, meters energy, and works with Apple Home, Alexa, Google Home, SmartThings and Home Assistant. The Amazon Smart Plug is the Alexa-only Type B alternative, at 15 A and 120 V, and it does not meter energy.

What is the biggest difference between the Amazon Smart Plug and the Shelly Plug M Gen3?

The socket. The Shelly Plug M Gen3 is Type F for 220 to 240 V. The Amazon Smart Plug is Type B for 120 V. They are not interchangeable, and only the Shelly Plug M Gen3 measures energy.

Does the Shelly Plug M Gen3 measure electricity use?

Yes. It has a voltmeter, an ammeter and power and energy meters. The Amazon Smart Plug has no energy monitoring, so it can only switch and schedule the load.

What does the Shelly Plug M Gen3 do well?

It pairs a 3000 W, 13 A relay with real energy metering, Matter certification into Apple Home, Alexa, Google Home and SmartThings, an official Home Assistant integration, and schedules that keep running locally when the internet is down.

Who should buy the Shelly Plug M Gen3?

Anyone switching a heavy appliance on a European Type F socket who wants a local energy reading, Matter, and schedules that stay on the plug. The Amazon Smart Plug is the pick only for Alexa on a Type B outlet.

Does the Shelly Plug M Gen3 need a hub?

No. It joins 2.4 GHz Wi-Fi directly and can be set up over Bluetooth. The Amazon Smart Plug also needs no hub, since it is set up inside the Alexa app. Neither plug is a Zigbee device.

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