Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug

Sonoff iPlug Gen2 S41s Matter Over WiFi Smart Plug

Matter over Wi-Fi, a 15A/1800W rating and a round Ø50 mm body, with no energy monitoring and 2.4GHz Wi-Fi only.

4.4
98 ratings
$11.90

Last recorded price

Also sold in packs

  • Pack of 4$29.99$7.50 per unitBuy
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Launch Year: 2025

Model: S41STPB

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Our review

SONOFF iPlug Gen2 S41s Review: A Compact Matter Plug That Joins Every Major Smart Home

The verdict

The SONOFF iPlug Gen2 S41s is a budget-friendly, unmetered Matter over Wi-Fi plug for anyone who wants to switch lamps, fans or a coffee maker from Apple Home, Google Home, Alexa, SmartThings or Home Assistant without a hub. It handles 15A/1800W loads, cuts power on lightning surges and carries a 2-year warranty in a compact round body that leaves the second outlet free. The trade-off is that it measures nothing: anyone who wants power readings should look at the metered S61s from the same iPlug Gen2 line.

Best for
  • Multi-ecosystem homes
  • Budget buyers
  • Hub-free Matter setups
  • Lamps and small appliances

Pros

  • Matter over Wi-Fi certified, so it works with Apple Home, Google Home, Alexa, SmartThings and Home Assistant with no hub
  • 15A/1800W rating handles heavier appliances
  • Lightning and surge protection cuts the output on voltage spikes
  • Timers, schedules, inching mode and smart scenes, plus LAN control
  • Compact round body that leaves the second outlet free
  • Physical on/off button and a 2-year warranty

Cons

  • No energy monitoring
  • 2.4GHz Wi-Fi only
  • No Zigbee, Thread or Z-Wave radio
  • Indoor use only, with no weather resistance
  • No USB charging ports and a single white finish

Who is the SONOFF iPlug Gen2 S41s for?

The SONOFF iPlug Gen2 S41s suits households that want simple on/off control of everyday appliances (lamps, fans, coffee makers, holiday lights) and want it to work in whichever smart home app they already use. As a Matter over Wi-Fi device it pairs straight to the home network with no hub, and because Matter is multi-admin the same plug can sit in Apple Home, Google Home, Alexa, SmartThings and Home Assistant at once. It is a Type B plug rated for 120V, so it is built for North American outlets, and it is rated for indoor use only.

What the SONOFF iPlug Gen2 S41s offers

Matter certification is the headline: the manual walks through adding the plug to Apple Home, Google Home, Alexa, SmartThings and Home Assistant by scanning the Matter QR code on its side, and it also carries Works with Alexa and Works with Google Home certification for the eWeLink route. In eWeLink it supports timers, schedules, an inching mode and smart scenes in which the plug can act as a trigger or an action, plus LAN control that keeps it switching when the internet drops. The 15A/1800W rating covers heavier appliances such as space heaters, the relay is rated for 10,000 cycles, the casing is flame-retardant V-0 PC, and built-in lightning and surge protection cuts the output when the supply spikes. A physical button on the side toggles the load by hand.

What to know before you buy

This is the unmetered model of the line: it reports no wattage, energy use or cost, so it cannot tell when a washer has finished or what an appliance costs to run. It connects over 2.4GHz Wi-Fi only (Bluetooth is used just for Matter pairing), and it has no Zigbee, Thread or Z-Wave radio, so it does not extend a Zigbee mesh. There are no USB ports, it comes in white only, and it is not weather resistant, which rules out patio and garden use.

Is the SONOFF iPlug Gen2 S41s worth it?

For basic switching the SONOFF iPlug Gen2 S41s covers the essentials at a budget-friendly tier: certified Matter support for every major platform, a full 15A rating, surge protection, local LAN control and a 2-year warranty in a body small enough to leave the neighbouring outlet usable. It is the right pick when control is all you need; if monitoring consumption matters, the metered S61s in the same iPlug Gen2 family is the better buy.

Frequently asked questions

Does the SONOFF iPlug Gen2 S41s work with Apple Home?

Yes. It is Matter certified, and Matter is what brings it into Apple Home: scan the Matter QR code on the side of the plug from the Home app.

Does the SONOFF iPlug Gen2 S41s need a hub?

No. It connects directly to 2.4GHz Wi-Fi and joins Matter over Wi-Fi, so no SONOFF hub or bridge is required.

Does the SONOFF iPlug Gen2 S41s monitor energy usage?

No. The S41s is the unmetered model of SONOFF's iPlug Gen2 line and reports no power or energy data. The S61s is the metered version.

Does the SONOFF iPlug Gen2 S41s work with Home Assistant?

Yes. Home Assistant is a certified Matter controller, so the plug can be added through its Matter integration, and Matter's multi-admin support lets it stay paired with another platform at the same time.

Can the SONOFF iPlug Gen2 S41s handle a space heater?

It is rated for 15A and 1800W at 120V, which covers most plug-in space heaters and other high-draw appliances within that limit. SONOFF advises against plugging a power strip into it.

Does the SONOFF iPlug Gen2 S41s keep working without internet?

It supports eWeLink LAN control, which switches it over the local network without a server connection.

At a glance

Summary

Everything this plug supports, grouped by category.

Size & Materials
Ø2 × 1.2 in (Ø50 × 30.8 mm)1.9 oz (53 g)
Power
Overheat/Overload Protection
Connectivity
2.4 GHz WiFiBluetooth (For Pairing)
Integrations
Google HomeAlexaApple HomeKitSamsung SmartThingsHome AssistantMatter
Features
On/Off Button

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Company
Sonoff logo

Sonoff

4.3/ 5 avg ratingChina flagHeadquartered in China

Sonoff, a brand of ITEAD, makes affordable smart home devices including Wi-Fi and Zigbee switches, smart plugs, relays, sensors and the ZBBridge and Zigbee dongles. Its products work through the eWeLink app and integrate with Alexa and Google Home, and are popular with DIY users and Home Assistant fans for low-cost automation. Sonoff is well known for budget-friendly switches and Zigbee hardware.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

NO

SONOFF lists the applicable place as indoor, with a working range of -10C to 40C and 5-95%RH non-condensing

Dimensions

Ø2 × 1.2 in (Ø50 × 30.8 mm)

Weight

1.9 oz (53 g)

Available in colors

NO

Power
Plug Format

Type B

Maximum Load Power

1800W

Maximum Load Current

15A

Load Voltage

120V

Overheat/Overload Protection

YES

Lightning and surge protection: the plug instantly cuts off the high voltage generated by a lightning strike or an unstable power supply

Energy Monitoring

NO

The S41s is the unmetered model of the iPlug Gen2 line; its spec sheet lists no power or energy readings (the S61s is the metered one)

USB Charging

NO

Connectivity
2.4 GHz WiFi

YES

IEEE 802.11 b/g/n 2.4GHz

5 GHz WiFi

NO

Bluetooth

For Pairing

The CSA certificate lists Wi-Fi and Bluetooth as transports and the user manual describes Matter commissioning as a Bluetooth pairing; the radio is not used for control

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Integrations
Google Home

YES

Works with Google Home certified (user manual), and also through Matter

Alexa

YES

Works with Alexa certified (user manual), and also through Matter

Apple HomeKit

YES

Via Matter

Samsung SmartThings

YES

Via Matter

Home Assistant

YES

Via Matter

Matter

YES

Matter over Wi-Fi certified by the CSA (Matter 1.4, certified 2025-08-18); the manual documents adding it to Apple Home, Google Home, Alexa, SmartThings and Home Assistant via Matter

Features
On/Off Button

YES

One button on the body: a single press toggles the load, a 5 second press enters pairing mode

Zigbee Router

NO

Automations

YES

Timers, schedules, inching mode and smart scenes in eWeLink (the plug can be a trigger or an action), plus Matter automations in the ecosystem app

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