The Smart Device Compare comparison
Shelly Pro 3EM-400 vs Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
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Key differences between Shelly Pro 3EM-400 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
- Ethernet (connectivity): Shelly Pro 3EM-400 — Yes; Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — No.
- Load Management (features): Shelly Pro 3EM-400 — Yes (Scripts and webhooks shed or enable loads 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).
- Din Rail Mount (installation): Shelly Pro 3EM-400 — Yes (One DIN module, but the 400 A clamps are bulky); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — No (Indoor flush mounting only, with no rail clip).
- Matter (integrations): Shelly Pro 3EM-400 — 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).
Specifications to check side by side
- Other (connectivity): Shelly Pro 3EM-400 — Modbus; Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — No.
- Data History (data monitoring): Shelly Pro 3EM-400 — 60 days (60 days of 1-minute data stored on the device); 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 Pro 3EM-400 — Mains (110-240 V); Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — Mains (100-240 V).
- Apple Home (integrations): Shelly Pro 3EM-400 — 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.).
Information still to confirm
- 7 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 2 · Sonoff
Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
Last updated October 2026
View full device profileWhat 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.
11differences with recorded values for every device
7rows with missing or unspecified information
Consider your setup
Apple Home
- Shelly Pro 3EM-400No
- 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 specificationsConsider your setup
Matter
- Shelly Pro 3EM-400No
- 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 specificationsYour 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.
Showing 39 of 39 rows. “Not recorded” does not mean “No”.
Connectivity
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- No
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
- Shelly Pro 3EM-400
- Yes
Catalog note
Also works as a Bluetooth gateway
- 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
- Shelly Pro 3EM-400
- Yes
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
- Shelly Pro 3EM-400
- Modbus
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
- Shelly Pro 3EM-400
- No
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
- Shelly Pro 3EM-400
- No
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- Yes
- 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
- Shelly Pro 3EM-400
- 60 days
Catalog note
60 days of 1-minute data stored on the device
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- Not recorded
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- Not recorded
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- Yes
Catalog note
Scripts and webhooks shed or enable loads 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
- Shelly Pro 3EM-400
- No
Catalog note
No built-in relay, contactor control needs the Shelly 3EM Switch Add-on
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- Yes
Catalog note
One DIN module, but the 400 A clamps are bulky
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
Catalog note
Indoor flush mounting only, with no rail clip
- Shelly Pro 3EM-400
- Mains (110-240 V)
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- Mains (100-240 V)
- Shelly Pro 3EM-400
- No
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
Integrations
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- 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.
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- 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
- Shelly Pro 3EM-400
- Yes
Catalog note
RPC over HTTP and WebSocket, plus Modbus, 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
- Shelly Pro 3EM-400
- Yes
- 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
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
- Shelly Pro 3EM-400
- Yes
- 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
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
- Shelly Pro 3EM-400
- ±1%
Catalog note
Accuracy Class B for active energy
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- Not recorded
- Shelly Pro 3EM-400
- Yes
Catalog note
4 quadrant measurement, produced and used energy per phase
- 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
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
- Shelly Pro 3EM-400
- Not applicable / unspecified
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- Not applicable / unspecified
- Shelly Pro 3EM-400
- 3
Catalog note
3 x 400 A current transformers
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- Not applicable / unspecified
Catalog note
Inline measurement, no current transformer involved
- Shelly Pro 3EM-400
- 400 A
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- Not applicable / unspecified
- Shelly Pro 3EM-400
- 3
Catalog note
Three phases, or three single-phase circuits
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- 1
Catalog note
One circuit, the load wired through its L and L Out terminals
- Shelly Pro 3EM-400
- Yes
- 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
- Shelly Pro 3EM-400
- Not recorded
- 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
- Shelly Pro 3EM-400
- Yes
- Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch)
- No
| Specification | Shelly Pro 3EM-400 | Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) |
|---|---|---|
| Connectivity | ||
| Yes | YesCatalog noteIEEE 802.11 b/g/n on 2.4 GHz, from an ESP32-C6 | |
| No | No | |
YesCatalog noteAlso works as a Bluetooth gateway | Not recordedCatalog noteThe 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 | |
| Yes | No | |
| Modbus | No | |
| No | No | |
| No | No | |
| No | NoCatalog noteThe Zigbee version of this meter is a separate model, the MINI-ZB1GP | |
| Data Monitoring | ||
| Yes | YesCatalog noteEnergy data and electricity bills export to a spreadsheet, from the app and from the local console | |
60 daysCatalog note60 days of 1-minute data stored on the device | 1 yearCatalog noteUp to one year of energy data, and going offline does not interrupt the recording | |
| Yes | YesCatalog noteCustom currency and electricity rate, with the bill broken down in charts | |
| Not recorded | Not recorded | |
YesCatalog noteCost periods and tariff distribution in the Shelly Smart Control app | YesCatalog noteFixed or time-of-use pricing, with consumption shown per rate band | |
| Yes | YesCatalog noteOvercurrent, overpower, overvoltage and undervoltage thresholds, plus a run completion alert and a maintenance reminder based on accumulated runtime | |
| Features | ||
| Yes | YesCatalog noteQuick Scenes in eWeLink, and its readings drive automations in Home Assistant | |
YesCatalog noteScripts and webhooks shed or enable loads from the readings | NoCatalog noteWith no relay it can raise a threshold alert but cannot shed the load itself | |
NoCatalog noteNo built-in relay, contactor control needs the Shelly 3EM Switch Add-on | NoCatalog noteSONOFF states this is a non-switch product that cannot control the load it measures | |
| Installation | ||
| Yes | YesCatalog noteWires into live and neutral behind a socket or inside a junction box, and SONOFF recommends a wall box at least 60 mm deep | |
YesCatalog noteOne DIN module, but the 400 A clamps are bulky | NoCatalog noteIndoor flush mounting only, with no rail clip | |
| Mains (110-240 V) | Mains (100-240 V) | |
| No | No | |
| Integrations | ||
| Yes | YesCatalog noteReached by adding the meter to eWeLink and linking the account, the path SONOFF documents for this model | |
| No | Upcoming platform supportCatalog noteThe 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. | |
| Yes | YesCatalog noteReached by adding the meter to eWeLink and linking the account, the path SONOFF documents for this model | |
| Yes | YesCatalog noteSONOFF's platform table gives Home Assistant two routes, Matter and MQTT discovery, and both carry the voltage, current, power and energy readings | |
| No | YesCatalog noteMatter 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 | |
YesCatalog noteVia the official Shelly Cloud integration | YesCatalog noteReached through eWeLink account linking, and SONOFF notes SmartThings also reads the power consumption figures | |
| Local Control | ||
YesCatalog noteRPC over HTTP and WebSocket, plus Modbus, webhooks and scripting | YesCatalog noteJSON-RPC 2.0 over HTTP and WebSocket, documented as an open API | |
| Yes | YesManufacturer sourceA local browser console is provided. Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description →
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 noteThe OpenEdge web console runs on the device and needs no app and no account | |
| Yes | YesManufacturer sourceMQTT access is listed. Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description →
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 noteMQTT is configured from the device itself and is how Home Assistant reads the meter with no cloud in the path | |
| Metering | ||
±1%Catalog noteAccuracy Class B for active energy | Not recorded | |
YesCatalog note4 quadrant measurement, produced and used energy per phase | YesManufacturer sourceBidirectional energy metering is supported. Sonoff MINI PM Matter Over WiFi Power Meter (Non-Switch) — manufacturer product description →
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 noteBi-directional metering separates what the load consumes from what a balcony solar array produces, which the app can record as a negative value | |
| Not applicable / unspecified | Not applicable / unspecified | |
3Catalog note3 x 400 A current transformers | Not applicable / unspecifiedCatalog noteInline measurement, no current transformer involved | |
| 400 A | Not applicable / unspecified | |
3Catalog noteThree phases, or three single-phase circuits | 1Catalog noteOne circuit, the load wired through its L and L Out terminals | |
| Yes | NoCatalog noteSONOFF documents real-time voltage, current, power and accumulated energy, with no power factor reading | |
| Not recorded | NoCatalog noteRated 100-240V~ 50/60Hz on a single line, so a 120/240 V split-phase service is out of scope | |
| Yes | 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