The Smart Device Compare comparison

Shelly 3EM-63W Gen3 vs Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Shelly 3EM-63W Gen3 and Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

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

Feature differences among your selected devices

Load Management (features): Shelly 3EM-63W Gen3 — Yes (Scripts and webhooks can drive other devices from the readings); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — No (With no relay it can raise a threshold alert but cannot shed the load itself).
Matter (integrations): Shelly 3EM-63W Gen3 — No; Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — Yes (Matter over Wi-Fi: the device carries a Matter QR code and is commissioned by scanning it from a Matter app | Home Assistant is the one Matter controller that accepts it today, because the energy meter device type is not yet handled by the other ecosystems).
Power Factor (metering): Shelly 3EM-63W Gen3 — Yes (Active and apparent power and energy, power factor, fundamental reactive energy); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — No (SONOFF documents real-time voltage, current, power and accumulated energy, with no power factor reading).
Three Phase (metering): Shelly 3EM-63W Gen3 — Yes; Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — No.

Specifications to check side by side

Data History (data monitoring): Shelly 3EM-63W Gen3 — 7 days (At least 7 days of 1-minute data in non-volatile memory); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — 1 year (Up to one year of energy data, and going offline does not interrupt the recording).
Power Supply (installation): Shelly 3EM-63W Gen3 — Mains (220-240 V); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — Mains (100-240 V).
Apple Home (integrations): Shelly 3EM-63W Gen3 — No; Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — Upcoming platform support (The meter is a Matter over Wi-Fi device, but SONOFF's own platform table marks Apple Home as not yet able to add it: the Home app still does not accept the Matter energy meter device type. Nothing on SONOFF's side is missing, so the meter gets in once Apple supports that type.).
Monitored Circuits (metering): Shelly 3EM-63W Gen3 — 3 (Three phases, or three independent single-phase circuits); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — 1 (One circuit, the load wired through its L and L Out terminals).

Information still to confirm

6 of 39 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

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 · Shelly

Shelly 3EM-63W Gen3

Catalog update date not recorded

View full device profile

Option 2 · Sonoff

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

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.

8differences with recorded values for every device

6rows with missing or unspecified information

Consider your setup

Apple Home

Shelly 3EM-63W Gen3No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)Upcoming platform support

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

Consider your setup

Matter

Shelly 3EM-63W Gen3No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)Yes

Confirm the exact device type and the features exposed in your chosen platform. Protocol support does not establish feature parity across apps.

Inspect the specifications

Your priorities, side by side

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.

Differences onlyMy priorities (0)

Showing 39 of 39 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
IEEE 802.11 b/g/n on 2.4 GHz, from an ESP32-C6

5 GHz Wi-Fi

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No

Bluetooth

Shelly 3EM-63W Gen3: Yes
Catalog note
Bluetooth 4.2
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Not recorded
Catalog note
The spec sheet lists Wi-Fi only, while the FCC grant authorises a second 2402-2480 MHz transmitter, so the radio is there but SONOFF never documents it as a feature

Ethernet

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No

Other

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No

Thread

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No

Z Wave

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No

Zigbee

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No
Catalog note
The Zigbee version of this meter is a separate model, the MINI-ZB1GP

Data Monitoring

Data Export

Shelly 3EM-63W Gen3: Yes
Catalog note
CSV for power quality values and JSON through RPC
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Energy data and electricity bills export to a spreadsheet, from the app and from the local console

Data History

Shelly 3EM-63W Gen3

7 days

Manufacturer source

Local records cover up to seven days at one-minute intervals.

Shelly 3EM-63W Gen3 manufacturer product page →

Source section: Technical details: device description and main features
Model: Shelly 3EM-63W Gen3
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable.

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

Catalog note

At least 7 days of 1-minute data in non-volatile memory

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

1 year

Catalog note

Up to one year of energy data, and going offline does not interrupt the recording

Energy Cost Tracking

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Custom currency and electricity rate, with the bill broken down in charts

Real Time Updates

Shelly 3EM-63W Gen3: Not recorded
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Not recorded

Time Of Use Rates

Shelly 3EM-63W Gen3: Yes
Catalog note
Cost periods and tariff distribution in the Shelly Smart Control app
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Fixed or time-of-use pricing, with consumption shown per rate band

Usage Alerts

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Overcurrent, overpower, overvoltage and undervoltage thresholds, plus a run completion alert and a maintenance reminder based on accumulated runtime

Features

Automations

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Quick Scenes in eWeLink, and its readings drive automations in Home Assistant

Load Management

Shelly 3EM-63W Gen3: Yes
Catalog note
Scripts and webhooks can drive other devices from the readings
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No
Catalog note
With no relay it can raise a threshold alert but cannot shed the load itself

Relay Output

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No
Catalog note
SONOFF states this is a non-switch product that cannot control the load it measures

Installation

Breaker Panel Install

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Wires into live and neutral behind a socket or inside a junction box, and SONOFF recommends a wall box at least 60 mm deep

Din Rail Mount

Shelly 3EM-63W Gen3: No
Catalog note
Sits above or below the DIN-rail circuit breakers instead of clipping onto the rail
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No
Catalog note
Indoor flush mounting only, with no rail clip

Power Supply

Shelly 3EM-63W Gen3: Mains (220-240 V)
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Mains (100-240 V)

Smart Meter Port

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No

Integrations

Alexa

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Reached by adding the meter to eWeLink and linking the account, the path SONOFF documents for this model

Apple Home

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Upcoming platform support
Catalog note
The meter is a Matter over Wi-Fi device, but SONOFF's own platform table marks Apple Home as not yet able to add it: the Home app still does not accept the Matter energy meter device type. Nothing on SONOFF's side is missing, so the meter gets in once Apple supports that type.

Google Home

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Reached by adding the meter to eWeLink and linking the account, the path SONOFF documents for this model

Home Assistant

Shelly 3EM-63W Gen3: Yes
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
SONOFF's platform table gives Home Assistant two routes, Matter and MQTT discovery, and both carry the voltage, current, power and energy readings

Matter

Shelly 3EM-63W Gen3: No
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Matter over Wi-Fi: the device carries a Matter QR code and is commissioned by scanning it from a Matter app | Home Assistant is the one Matter controller that accepts it today, because the energy meter device type is not yet handled by the other ecosystems

SmartThings

Shelly 3EM-63W Gen3: Yes
Catalog note
Via the official Shelly Cloud integration
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
Reached through eWeLink account linking, and SONOFF notes SmartThings also reads the power consumption figures

Local Control

Local Api

Shelly 3EM-63W Gen3: Yes
Catalog note
RPC over HTTP and WebSocket with TLS, plus webhooks and scripting
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Yes
Catalog note
JSON-RPC 2.0 over HTTP and WebSocket, documented as an open API

Local Web Interface

Shelly 3EM-63W Gen3

Yes

Manufacturer source

An embedded web interface provides local access.

Shelly 3EM-63W Gen3 manufacturer product page →

Source section: Technical details: device description and main features
Model: Shelly 3EM-63W Gen3
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable.

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

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

Yes

Manufacturer source

A local browser console is provided.

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description →

Source section: Product description / feature descriptions
Model: MINI-1GP
Region: Manufacturer listing for the named model/variant; regional equivalence has not been established
Firmware: Not specified by this source
Checked: 2026-10-04

This product measures energy and does not switch the attached load.

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

Catalog note

The OpenEdge web console runs on the device and needs no app and no account

Mqtt

Shelly 3EM-63W Gen3

Yes

Manufacturer source

MQTT communication is documented.

Shelly 3EM-63W Gen3 manufacturer product page →

Source section: Technical details: device description and main features
Model: Shelly 3EM-63W Gen3
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable.

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

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

Yes

Manufacturer source

MQTT access is listed.

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description →

Source section: Product description / feature descriptions
Model: MINI-1GP
Region: Manufacturer listing for the named model/variant; regional equivalence has not been established
Firmware: Not specified by this source
Checked: 2026-10-04

This product measures energy and does not switch the attached load.

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

Catalog note

MQTT is configured from the device itself and is how Home Assistant reads the meter with no cloud in the path

Metering

Accuracy

Shelly 3EM-63W Gen3: ±1%
Catalog note
Accuracy Class B for active energy, ±1% from 2 A to 63 A
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Not recorded

Bidirectional Metering

Shelly 3EM-63W Gen3

Yes

Catalog note

4 quadrant measurement, direction can be reversed per phase in software

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

Yes

Manufacturer source

Bidirectional energy metering is supported.

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description →

Source section: Product description / feature descriptions
Model: MINI-1GP
Region: Manufacturer listing for the named model/variant; regional equivalence has not been established
Firmware: Not specified by this source
Checked: 2026-10-04

This product measures energy and does not switch the attached load.

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

Catalog note

Bi-directional metering separates what the load consumes from what a balcony solar array produces, which the app can record as a negative value

Branch Ct Rating

Shelly 3EM-63W Gen3: Not applicable / unspecified
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Not applicable / unspecified

Included Ct Sensors

Shelly 3EM-63W Gen3: Not applicable / unspecified
Catalog note
Current transformers are built into the body, conductor aperture 8 mm
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Not applicable / unspecified
Catalog note
Inline measurement, no current transformer involved

Main Ct Rating

Shelly 3EM-63W Gen3: 63 A
Catalog note
0 to 63 A per phase, saturation at 130 A
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): Not applicable / unspecified

Monitored Circuits

Shelly 3EM-63W Gen3

Manufacturer source

Three measurement channels support separate single-phase circuits.

Shelly 3EM-63W Gen3 manufacturer product page →

Source section: Technical details: device description and main features
Model: Shelly 3EM-63W Gen3
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable.

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

Catalog note

Three phases, or three independent single-phase circuits

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

Catalog note

One circuit, the load wired through its L and L Out terminals

Power Factor

Shelly 3EM-63W Gen3: Yes
Catalog note
Active and apparent power and energy, power factor, fundamental reactive energy
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No
Catalog note
SONOFF documents real-time voltage, current, power and accumulated energy, with no power factor reading

Split Phase

Shelly 3EM-63W Gen3: No
Catalog note
220-240 V only, so a 120/240 V split-phase service is out of scope
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch): No
Catalog note
Rated 100-240V~ 50/60Hz on a single line, so a 120/240 V split-phase service is out of scope

Three Phase

Shelly 3EM-63W Gen3

Yes

Manufacturer source

The meter also supports a three-phase installation.

Shelly 3EM-63W Gen3 manufacturer product page →

Source section: Technical details: device description and main features
Model: Shelly 3EM-63W Gen3
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable.

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

Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)

Specifications for Shelly 3EM-63W Gen3 versus Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
Specification	Shelly 3EM-63W Gen3	Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
Connectivity
2.4 GHz Wi-Fi	Yes	Yes Catalog note IEEE 802.11 b/g/n on 2.4 GHz, from an ESP32-C6
5 GHz Wi-Fi	No	No
Bluetooth	Yes Catalog note Bluetooth 4.2	Not recorded Catalog note The spec sheet lists Wi-Fi only, while the FCC grant authorises a second 2402-2480 MHz transmitter, so the radio is there but SONOFF never documents it as a feature
Ethernet	No	No
Other	No	No
Thread	No	No
Z Wave	No	No
Zigbee	No	No Catalog note The Zigbee version of this meter is a separate model, the MINI-ZB1GP
Data Monitoring
Data Export	Yes Catalog note CSV for power quality values and JSON through RPC	Yes Catalog note Energy data and electricity bills export to a spreadsheet, from the app and from the local console
Data History	7 days Manufacturer source Local records cover up to seven days at one-minute intervals. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note At least 7 days of 1-minute data in non-volatile memory	1 year Catalog note Up to one year of energy data, and going offline does not interrupt the recording
Energy Cost Tracking	Yes	Yes Catalog note Custom currency and electricity rate, with the bill broken down in charts
Real Time Updates	Not recorded	Not recorded
Time Of Use Rates	Yes Catalog note Cost periods and tariff distribution in the Shelly Smart Control app	Yes Catalog note Fixed or time-of-use pricing, with consumption shown per rate band
Usage Alerts	Yes	Yes Catalog note Overcurrent, overpower, overvoltage and undervoltage thresholds, plus a run completion alert and a maintenance reminder based on accumulated runtime
Features
Automations	Yes	Yes Catalog note Quick Scenes in eWeLink, and its readings drive automations in Home Assistant
Load Management	Yes Catalog note Scripts and webhooks can drive other devices from the readings	No Catalog note With no relay it can raise a threshold alert but cannot shed the load itself
Relay Output	No	No Catalog note SONOFF states this is a non-switch product that cannot control the load it measures
Installation
Breaker Panel Install	Yes	Yes Catalog note Wires into live and neutral behind a socket or inside a junction box, and SONOFF recommends a wall box at least 60 mm deep
Din Rail Mount	No Catalog note Sits above or below the DIN-rail circuit breakers instead of clipping onto the rail	No Catalog note Indoor flush mounting only, with no rail clip
Power Supply	Mains (220-240 V)	Mains (100-240 V)
Smart Meter Port	No	No
Integrations
Alexa	Yes	Yes Catalog note Reached by adding the meter to eWeLink and linking the account, the path SONOFF documents for this model
Apple Home	No	Upcoming platform support Catalog note The meter is a Matter over Wi-Fi device, but SONOFF's own platform table marks Apple Home as not yet able to add it: the Home app still does not accept the Matter energy meter device type. Nothing on SONOFF's side is missing, so the meter gets in once Apple supports that type.
Google Home	Yes	Yes Catalog note Reached by adding the meter to eWeLink and linking the account, the path SONOFF documents for this model
Home Assistant	Yes	Yes Catalog note SONOFF's platform table gives Home Assistant two routes, Matter and MQTT discovery, and both carry the voltage, current, power and energy readings
Matter	No	Yes Catalog note Matter over Wi-Fi: the device carries a Matter QR code and is commissioned by scanning it from a Matter app \| Home Assistant is the one Matter controller that accepts it today, because the energy meter device type is not yet handled by the other ecosystems
SmartThings	Yes Catalog note Via the official Shelly Cloud integration	Yes Catalog note Reached through eWeLink account linking, and SONOFF notes SmartThings also reads the power consumption figures
Local Control
Local Api	Yes Catalog note RPC over HTTP and WebSocket with TLS, plus webhooks and scripting	Yes Catalog note JSON-RPC 2.0 over HTTP and WebSocket, documented as an open API
Local Web Interface	Yes Manufacturer source An embedded web interface provides local access. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes Manufacturer source A local browser console is provided. Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description → Source section Product description / feature descriptions Model MINI-1GP Region Manufacturer listing for the named model/variant; regional equivalence has not been established Firmware Not specified by this source Checked 2026-10-04 This product measures energy and does not switch the attached load. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note The OpenEdge web console runs on the device and needs no app and no account
Mqtt	Yes Manufacturer source MQTT communication is documented. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes Manufacturer source MQTT access is listed. Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description → Source section Product description / feature descriptions Model MINI-1GP Region Manufacturer listing for the named model/variant; regional equivalence has not been established Firmware Not specified by this source Checked 2026-10-04 This product measures energy and does not switch the attached load. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note MQTT is configured from the device itself and is how Home Assistant reads the meter with no cloud in the path
Metering
Accuracy	±1% Catalog note Accuracy Class B for active energy, ±1% from 2 A to 63 A	Not recorded
Bidirectional Metering	Yes Catalog note 4 quadrant measurement, direction can be reversed per phase in software	Yes Manufacturer source Bidirectional energy metering is supported. Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description → Source section Product description / feature descriptions Model MINI-1GP Region Manufacturer listing for the named model/variant; regional equivalence has not been established Firmware Not specified by this source Checked 2026-10-04 This product measures energy and does not switch the attached load. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Bi-directional metering separates what the load consumes from what a balcony solar array produces, which the app can record as a negative value
Branch Ct Rating	Not applicable / unspecified	Not applicable / unspecified
Included Ct Sensors	Not applicable / unspecified Catalog note Current transformers are built into the body, conductor aperture 8 mm	Not applicable / unspecified Catalog note Inline measurement, no current transformer involved
Main Ct Rating	63 A Catalog note 0 to 63 A per phase, saturation at 130 A	Not applicable / unspecified
Monitored Circuits	3 Manufacturer source Three measurement channels support separate single-phase circuits. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Three phases, or three independent single-phase circuits	1 Catalog note One circuit, the load wired through its L and L Out terminals
Power Factor	Yes Catalog note Active and apparent power and energy, power factor, fundamental reactive energy	No Catalog note SONOFF documents real-time voltage, current, power and accumulated energy, with no power factor reading
Split Phase	No Catalog note 220-240 V only, so a 120/240 V split-phase service is out of scope	No Catalog note Rated 100-240V~ 50/60Hz on a single line, so a 120/240 V split-phase service is out of scope
Three Phase	Yes Manufacturer source The meter also supports a three-phase installation. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant.	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