The Smart Device Compare comparison

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug vs Sonoff Zigbee Smart Plug S40 Lite

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug and Sonoff Zigbee Smart Plug S40 Lite

A summary of selected recorded differences between these plugs. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Energy Monitoring (power): Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — Yes (Real-time voltage, current, power and consumption with historical reports by hour, day and month, 180 days of consumption history and data export); Sonoff Zigbee Smart Plug S40 Lite — No.
Overheat Overload Protection (power): Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — Yes (Multi-layer protection: the plug shuts the load off immediately when a configured current, voltage or power threshold is exceeded, and it can be restored remotely or manually after a trip); Sonoff Zigbee Smart Plug S40 Lite — No.

Specifications to check side by side

Load Voltage (power): Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — 100 - 125V; Sonoff Zigbee Smart Plug S40 Lite — 120V.
Maximum Load Power (power): Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — 1875W; Sonoff Zigbee Smart Plug S40 Lite — 1800W.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Sonoff

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug

Last updated October 2026

View full device profile

Option 2 · Sonoff

Sonoff Zigbee Smart Plug S40 Lite

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

4differences with recorded values for every device

0rows with missing or unspecified information

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Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

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Showing 22 of 22 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: No
Sonoff Zigbee Smart Plug S40 Lite: No

5 GHz Wi-Fi

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: No
Sonoff Zigbee Smart Plug S40 Lite: No

Bluetooth

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: No
Sonoff Zigbee Smart Plug S40 Lite: No

Thread

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: No
Sonoff Zigbee Smart Plug S40 Lite: No

Z Wave

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: No
Sonoff Zigbee Smart Plug S40 Lite: No

Zigbee

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Zigbee Hub required
Catalog note
Zigbee 3.0 (IEEE 802.15.4) device: it pairs to a Zigbee coordinator such as a SONOFF ZBBridge, a SONOFF Dongle with ZHA or Zigbee2MQTT, or the built-in coordinator of an Amazon Echo Plus, Echo 4th gen or Echo Show 2nd gen
Sonoff Zigbee Smart Plug S40 Lite: Zigbee Hub required
Catalog note
Act as a Zigbee Router to extend the Zigbee network range.

Features

Automations

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
Schedules, timers, loop timers and inching, plus smart scenes triggered by load power or electricity consumption
Sonoff Zigbee Smart Plug S40 Lite: Yes

On Off Button

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
One physical button: a single press toggles the load, a five second hold enters pairing mode and a ten second hold resets the device
Sonoff Zigbee Smart Plug S40 Lite: Yes

Zigbee Router

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug

Yes

Manufacturer source

Zigbee router functionality is described.

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — manufacturer product description →

Source section: Product description / feature descriptions
Model: S61SZBTPB
Region: Manufacturer listing for the named model/variant; regional equivalence has not been established
Firmware: Not specified by this source
Checked: 2026-10-04

Check the specified variant, required hub and installation instructions. Manufacturer claims are not independent performance tests.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Works as a Zigbee router while powered on and connected, repeating signal to extend the network, with support for up to 64 end devices

Sonoff Zigbee Smart Plug S40 Lite

Yes

Integrations

Alexa

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
Works over Alexa voice control through account linking in the eWeLink app, and the Amazon Echo Plus 2nd gen, Echo 4th gen and Echo Show 2nd gen can act as its Zigbee hub directly
Sonoff Zigbee Smart Plug S40 Lite: Yes

Apple Home

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: SONOFF Hub required
Catalog note
The device is not a native HomeKit accessory: it reaches the Apple Home app through a Matter bridge, either a SONOFF hub (Bridge-M, ZBBridge-U, iHost) or the software Matter bridge in eWeLink CUBE
Sonoff Zigbee Smart Plug S40 Lite: SONOFF Hub required
Catalog note
SONOFF lists this model among the Zigbee devices its Matter bridges (Zigbee Bridge Ultra, iHost, NSPanel Pro) publish to Matter, which is how it reaches the Apple Home app. Apple Home has no Zigbee radio of its own.

Google Home

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
Once the plug is added to a compatible SONOFF Zigbee gateway, the eWeLink app's account linking exposes it to Google Home for on and off voice control
Sonoff Zigbee Smart Plug S40 Lite: Yes

Home Assistant

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
Supported natively through Zigbee2MQTT from version 2.11.0 and through ZHA with the SONOFF-provided script, using a SONOFF Dongle Plus, Dongle Lite, Dongle Max or ZBDongle
Sonoff Zigbee Smart Plug S40 Lite: Yes

Matter

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: SONOFF Hub required
Catalog note
The device is not Matter itself: SONOFF republishes it into Matter through a bridge (Bridge-M, ZBBridge-U, iHost or eWeLink CUBE with a SONOFF Zigbee Dongle), which is how it reaches the Apple Home app
Sonoff Zigbee Smart Plug S40 Lite: SONOFF Hub required
Catalog note
The device is not Matter itself: SONOFF lists it among the Zigbee models its Matter bridges (Zigbee Bridge Ultra, iHost, NSPanel Pro) republish into Matter.

SmartThings

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
Listed as SmartThings compatible with an AeoTec Smart Home Hub V3 as its Zigbee hub, and reachable through the eWeLink cloud once added to a SONOFF gateway
Sonoff Zigbee Smart Plug S40 Lite: Yes

Power

Energy Monitoring

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug

Yes

Manufacturer source

Power and energy measurement are described.

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — manufacturer product description →

Source section: Product description / feature descriptions
Model: S61SZBTPB
Region: Manufacturer listing for the named model/variant; regional equivalence has not been established
Firmware: Not specified by this source
Checked: 2026-10-04

Check the specified variant, required hub and installation instructions. Manufacturer claims are not independent performance tests.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Real-time voltage, current, power and consumption with historical reports by hour, day and month, 180 days of consumption history and data export

Sonoff Zigbee Smart Plug S40 Lite

Load Voltage

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: 100 - 125V
Sonoff Zigbee Smart Plug S40 Lite: 120V

Maximum Load Current

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: 15A
Sonoff Zigbee Smart Plug S40 Lite: 15A

Maximum Load Power

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: 1875W
Sonoff Zigbee Smart Plug S40 Lite: 1800W

Overheat Overload Protection

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Yes
Catalog note
Multi-layer protection: the plug shuts the load off immediately when a configured current, voltage or power threshold is exceeded, and it can be restored remotely or manually after a trip
Sonoff Zigbee Smart Plug S40 Lite: No

Plug Format

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: Type B
Sonoff Zigbee Smart Plug S40 Lite: Type B

Usb Charging

Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug: No
Sonoff Zigbee Smart Plug S40 Lite: No

Specifications for Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug versus Sonoff Zigbee Smart Plug S40 Lite
Specification	Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug	Sonoff Zigbee Smart Plug S40 Lite
Connectivity
2.4 GHz Wi-Fi	No	No
5 GHz Wi-Fi	No	No
Bluetooth	No	No
Thread	No	No
Z Wave	No	No
Zigbee	Zigbee Hub required Catalog note Zigbee 3.0 (IEEE 802.15.4) device: it pairs to a Zigbee coordinator such as a SONOFF ZBBridge, a SONOFF Dongle with ZHA or Zigbee2MQTT, or the built-in coordinator of an Amazon Echo Plus, Echo 4th gen or Echo Show 2nd gen	Zigbee Hub required Catalog note Act as a Zigbee Router to extend the Zigbee network range.
Features
Automations	Yes Catalog note Schedules, timers, loop timers and inching, plus smart scenes triggered by load power or electricity consumption	Yes
On Off Button	Yes Catalog note One physical button: a single press toggles the load, a five second hold enters pairing mode and a ten second hold resets the device	Yes
Zigbee Router	Yes Manufacturer source Zigbee router functionality is described. Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — manufacturer product description → Source section Product description / feature descriptions Model S61SZBTPB Region Manufacturer listing for the named model/variant; regional equivalence has not been established Firmware Not specified by this source Checked 2026-10-04 Check the specified variant, required hub and installation instructions. Manufacturer claims are not independent performance tests. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Works as a Zigbee router while powered on and connected, repeating signal to extend the network, with support for up to 64 end devices	Yes
Integrations
Alexa	Yes Catalog note Works over Alexa voice control through account linking in the eWeLink app, and the Amazon Echo Plus 2nd gen, Echo 4th gen and Echo Show 2nd gen can act as its Zigbee hub directly	Yes
Apple Home	SONOFF Hub required Catalog note The device is not a native HomeKit accessory: it reaches the Apple Home app through a Matter bridge, either a SONOFF hub (Bridge-M, ZBBridge-U, iHost) or the software Matter bridge in eWeLink CUBE	SONOFF Hub required Catalog note SONOFF lists this model among the Zigbee devices its Matter bridges (Zigbee Bridge Ultra, iHost, NSPanel Pro) publish to Matter, which is how it reaches the Apple Home app. Apple Home has no Zigbee radio of its own.
Google Home	Yes Catalog note Once the plug is added to a compatible SONOFF Zigbee gateway, the eWeLink app's account linking exposes it to Google Home for on and off voice control	Yes
Home Assistant	Yes Catalog note Supported natively through Zigbee2MQTT from version 2.11.0 and through ZHA with the SONOFF-provided script, using a SONOFF Dongle Plus, Dongle Lite, Dongle Max or ZBDongle	Yes
Matter	SONOFF Hub required Catalog note The device is not Matter itself: SONOFF republishes it into Matter through a bridge (Bridge-M, ZBBridge-U, iHost or eWeLink CUBE with a SONOFF Zigbee Dongle), which is how it reaches the Apple Home app	SONOFF Hub required Catalog note The device is not Matter itself: SONOFF lists it among the Zigbee models its Matter bridges (Zigbee Bridge Ultra, iHost, NSPanel Pro) republish into Matter.
SmartThings	Yes Catalog note Listed as SmartThings compatible with an AeoTec Smart Home Hub V3 as its Zigbee hub, and reachable through the eWeLink cloud once added to a SONOFF gateway	Yes
Power
Energy Monitoring	Yes Manufacturer source Power and energy measurement are described. Sonoff iPlug Gen2 S61s Type B Zigbee Power Meter Smart Plug — manufacturer product description → Source section Product description / feature descriptions Model S61SZBTPB Region Manufacturer listing for the named model/variant; regional equivalence has not been established Firmware Not specified by this source Checked 2026-10-04 Check the specified variant, required hub and installation instructions. Manufacturer claims are not independent performance tests. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Real-time voltage, current, power and consumption with historical reports by hour, day and month, 180 days of consumption history and data export	No
Load Voltage	100 - 125V	120V
Maximum Load Current	15A	15A
Maximum Load Power	1875W	1800W
Overheat Overload Protection	Yes Catalog note Multi-layer protection: the plug shuts the load off immediately when a configured current, voltage or power threshold is exceeded, and it can be restored remotely or manually after a trip	No
Plug Format	Type B	Type B
Usb Charging	No	No

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology