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Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug vs Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug

Full Smart Plugs comparison in 2026

Updated October 2026
Data from Amazon and official Sonoff site.
2026 verdict
If you want to see what an appliance actually costs to run, the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug is the one to get.
It is the metered member of this pair, reporting live voltage, current, power, runtime and consumption with charts and cost tracking against your own tariff, and it lets you set current, voltage and power thresholds that cut the load, on top of overload and overcharge protection. The Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug is the unmetered sibling: the same North American Type B format, the same Matter over Wi-Fi commissioning into Apple Home, Google Home, Alexa, SmartThings and Home Assistant with no hub, the same timers, schedules, LAN control and two-year warranty, but with no power readings and only a lightning and surge guard. The S41s is the lower priced option and its round body is a touch more compact. Pick the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug when knowing the numbers matters, and the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug when simple on and off is enough.
Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug
Prime exclusive deal
$11.90

Last recorded price

Also sold in packs

  • Pack of 4$29.99$7.50 per unitYou save $17.61Buy
vs
Winner
Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug
Prime exclusive deal
$13.90

Last recorded price

Also sold in packs

  • Pack of 4$39.90$9.97 per unitYou save $15.70Buy
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FeatureSonoff iPlug Gen2 S41s Matter Over WiFi Smart PlugSonoff iPlug Gen2 Type B Matter Over WiFi Smart PlugWinner
Price$11.90$13.90Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug
Maximum Load Power1800W1875WSonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug
Energy MonitoringNOYESSonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug
Rating4.44.4Tie
Warranty2 years2 yearsTie
Weather ResistanceNONOTie
Plug FormatType BType BTie
Overheat/Overload ProtectionYESYESTie
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, BluetoothTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
On/Off ButtonYESYESTie
Zigbee RouterNONOTie

What the differences mean

Energy monitoring

This is the whole split. The Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug reports real-time voltage, current, power, runtime and consumption, with charts and a cost figure built from a custom rate, while the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug measures nothing. If a bill or a cycle-complete trigger matters, only the metered plug can answer.

Safety cut-offs

The Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug cuts the output on a lightning or surge spike. The Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug adds overload and overcharge protection with current, voltage and power thresholds you set, so it drops the load before a problem reaches the appliance.

Price

The Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug is the more affordable option, and it is the one to choose if you will never look at a consumption chart. The Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug costs more for its metering and its configurable cut-offs.

Load ceiling

The two are close here: the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug is rated 15A for 1800W and the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug 15A for 1875W. The difference is small enough that no normal household appliance will notice it, so it should not decide the purchase.

Body

The Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug is a round Ø50 mm body built to leave the second outlet free, while the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug is a compact 60 x 38 x 54 mm rectangle. Both are small, and neither should force a change of power strip on a normal wall outlet.

Which one to buy if

Upgrading from the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug?

Moving up from the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug to the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug buys one thing: measurement. The Type B format, the Matter over Wi-Fi commissioning, the 15A rating, the timers, the LAN control and the two-year warranty are the same, so a plug that only ever switches a lamp has nothing to gain. The metered model adds live voltage, current, power and consumption with cost tracking and settable current, voltage and power cut-offs, plus overcharge protection. Step up if you want to know what an appliance draws or to trigger an automation on its power use; otherwise the S41s is the better buy.

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.

  • Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug
  • Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug

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Frequently Asked Questions

Which is better overall: Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug or Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug?

The Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug is the more capable of the two because it meters energy and adds configurable cut-offs. The Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug is the better value when you only need basic switching, since it shares the format, Matter support and warranty.

What is the biggest difference between the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug and the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug?

Energy monitoring. The Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug reports voltage, current, power and cost with settable protection thresholds, while the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug is the unmetered model of the same line and only guards against surges.

Do the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug and Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug need a hub?

No. Both are Matter over Wi-Fi devices on North American Type B outlets that connect to the router directly, with no Sonoff bridge. Each needs a Matter controller for your ecosystem, such as a HomePod or Apple TV, a Nest device, a compatible Echo, or a SmartThings or Home Assistant setup.

Which plug measures energy use?

The Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug. It records live voltage, current, power, runtime and consumption with charts and a cost figure at your own rate. The Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug keeps no such history and cannot report what an appliance draws.

Who should buy the Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug?

Buyers who want the cheapest way to switch lamps, fans and holiday lights from a Matter app, do not need power readings, and value the round body that leaves the second outlet usable.

Who should buy the Sonoff iPlug Gen2 Type B Matter Over WiFi Smart Plug?

Anyone who wants to know what a plugged-in appliance costs, set current, voltage or power cut-offs, or trigger an automation on consumption, on a standard North American 15A outlet.

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