Device Comparison
HomeWizard kWh Meter 3-Phase vs HomeWizard Wi-Fi kWh Meter 3-Phase vs Shelly 3EM vs Shelly 3EM-63T Gen3
A three-phase monitoring comparison for households choosing between HomeWizard app simplicity and Shelly local-integration flexibility.
Free Compare
Build your own comparison
Which To Choose
Start with the practical fit, then read the table.
HomeWizard kWh Meter 3-Phase
Best fit when three-phase 3P4W with neutral or supported 3P3W without neutral., solar import/export visibility, and local dashboards and Home Assistant.
HomeWizard Wi-Fi kWh Meter 3-Phase
Best fit when three-phase 3P4W or 3P3W; 100 A maximum per phase, solar import/export visibility, and local dashboards and Home Assistant.
Shelly 3EM-63T Gen3
Best fit when three-phase or three independent single-phase circuits, solar import/export visibility, and local dashboards and Home Assistant.
Use this comparison when you want three-phase visibility and the shortlist is down to HomeWizard convenience versus Shelly’s stronger local automation story.
At A Glance
Key fit signals before the full table
A quick pass over the most decision-shaping details for each device in this featured comparison.
HomeWizard kWh Meter 3-Phase
- Phase
- Three-phase 3P4W with neutral or supported 3P3W without neutral.
- Installation
- Four-module 35 mm DIN-rail direct-connected three-phase meter installed after the circuit breaker; qualified electrical installation required.
- Measurement
- Bidirectional three-phase import/export energy, total and per-phase power, voltage, current, power factor and frequency monitoring.
- Max current
- 100 A
HomeWizard Wi-Fi kWh Meter 3-Phase
- Phase
- Three-phase 3P4W or 3P3W; 100 A maximum per phase
- Installation
- 4-module (72 mm) 35 mm DIN-rail inline installation after the circuit breaker; electrical-installation competence is required.
- Measurement
- Bidirectional three-phase direct-connected import/export energy and electrical-parameter metering
- Max current
- 100 A
Shelly 3EM-63T Gen3
- Phase
- Three-phase or three independent single-phase circuits
- Installation
- Indoor meter mounted above or under DIN-rail mounted circuit breakers
- Measurement
- Three-channel four-quadrant active/apparent power and energy, power factor, and fundamental reactive-energy measurement; PV import/export ready.
- Max current
- 63 A
Before You Decide
Checks that matter before price.
- Confirm your supply type first: single-phase, split-phase, or three-phase.
- Decide whether DIN-rail wiring, CT clamps, or utility-meter access fits your switchboard.
- Choose between cloud convenience and local data access before comparing prices.
- For solar homes, make sure import, export, and load readings are measured at the right point.
| Install fit | |||
|---|---|---|---|
| Phase support | Three-phase 3P4W with neutral or supported 3P3W without neutral. | Three-phase 3P4W or 3P3W; 100 A maximum per phase | Three-phase or three independent single-phase circuits |
| Installation | Four-module 35 mm DIN-rail direct-connected three-phase meter installed after the circuit breaker; qualified electrical installation required. | 4-module (72 mm) 35 mm DIN-rail inline installation after the circuit breaker; electrical-installation competence is required. | Indoor meter mounted above or under DIN-rail mounted circuit breakers |
| Measurement | Bidirectional three-phase import/export energy, total and per-phase power, voltage, current, power factor and frequency monitoring. | Bidirectional three-phase direct-connected import/export energy and electrical-parameter metering | Three-channel four-quadrant active/apparent power and energy, power factor, and fundamental reactive-energy measurement; PV import/export ready. |
| Max current | 100 A | 100 A | 63 A |
| Meter fit | |||
| Accuracy class | Class B (MID) | Class B (MID) | Class B active energy; 1% meter accuracy. |
| Current sensing | Direct-connected inline measurement up to 100 A continuous per phase; no external CTs. | Direct-connected inline meter; no external CT; supports up to 100 A continuous load per phase. | Three integrated non-contact current transformers, one per phase/channel; 0-63 A RMS measurement range (130 A saturation). |
| Monitoring | |||
| Protocol | Wi-Fi 2.4 GHz / HomeWizard Local API v1-v2 / HTTPS JSON / WSS WebSocket | 2.4 GHz Wi-Fi / local API v1 HTTP JSON / API v2 HTTPS bearer token / WSS WebSocket | Wi-Fi / Bluetooth / MQTT / HTTP / WebSocket / RPC |
| Local API | Yes | Yes | Yes |
| Cloud dependency | Optional cloud. Local API v2 and local Home Assistant polling can operate without cloud; disabling cloud removes app access and future firmware updates. | Optional cloud for local API and Home Assistant. Disabling cloud enables fully local operation but removes app access and future firmware updates. | Optional Shelly Cloud; local Wi-Fi web interface and MQTT/HTTP/WebSocket/RPC paths are available without cloud. |
| Home Assistant | Yes | Yes | Yes |
| Solar fit | |||
| Solar import/export | Yes | Yes | Yes |
| Buying context | |||
| Price range | About EUR 100-EUR 150 | About EUR 129.95 | USD 91.99 sale / EUR 94.90 |
| Availability | HomeWizard international and localized European official-store markets; delivery, tax and electrical suitability vary by destination. | Europe through HomeWizard's international and localized official stores; destination availability, currency, tax and shipping vary. | United States, European Union and selected Asian markets through official Shelly storefronts; voltage, certification, price and stock vary by market. |
| Source check | |||
| Last verified | Sep 25, 2026 | Sep 18, 2026 | Oct 9, 2026 |
| Product page | Official page | Official page | Official page |
| Documentation | Official docs | Official docs | Official docs |
Verdict
Choose HomeWizard for cleaner app-first monitoring, and Shelly when local APIs, Home Assistant, or more flexible automation are part of the plan.
FAQ
Common decision questions.
Which energy meter should I choose?
Choose the option that matches your installation constraints and data path first. For 3 energy meter options, the full table is most useful after you know whether local data access, cloud convenience, backup behavior, solar visibility, or expansion matters most.
What should I check before comparing prices?
Check installation fit, required accessories, official documentation, monitoring platform support, and any unknown fields in the source-checked table. Price is only useful once those constraints are clear.
Can these devices work with local dashboards or Home Assistant?
HomeWizard kWh Meter 3-Phase, HomeWizard Wi-Fi kWh Meter 3-Phase, Shelly 3EM-63T Gen3 list Home Assistant support in the catalog. HomeWizard kWh Meter 3-Phase, HomeWizard Wi-Fi kWh Meter 3-Phase, Shelly 3EM-63T Gen3 are marked with local API support. Confirm firmware, region, and integration maturity before treating this as a final compatibility guarantee.
Are unknown fields a reason to avoid a device?
Not always. Unknown means the field was not confirmed from the reviewed source data. Treat it as a question for the installer, reseller, or manufacturer before making a purchase decision.
Does the verdict replace the specification table?
No. The verdict is a practical shortcut. Use the table to confirm the exact constraints that matter for your home, especially installation, monitoring, and support details.