Shelly Pro EM-50 vs Zemismart SDM01 comparison

Data from Amazon and official Shelly and Zemismart sites.

2026 verdict

Across the 2026 comparison, Shelly Pro EM-50 earns the nod over Zemismart SDM01 on the strength of connectivity, integrations, and data & monitoring. It separates itself most clearly on connectivity, integrations, and data & monitoring, while still looking better on local control and relay output. Zemismart SDM01 is still relevant if you care most about price and metering, but Shelly Pro EM-50 is the stronger recommendation overall. That makes Shelly Pro EM-50 the clearer recommendation in 2026.

Winner

Shelly

Shelly Pro EM-50

$119.99

Buy on Amazon USA

Zemismart

Zemismart SDM01

50% OFF

$82.61

$165.22

Buy on Official Store

Feature	Shelly Pro EM-50	Zemismart SDM01	Winner
Price	$119.99	$82.61	Zemismart SDM01
Metering	Solar Net Metering, Power Factor Readings	Three-Phase Support, Solar Net Metering, Power Factor Readings	Zemismart SDM01
Connectivity	2.4 GHz WiFi, Ethernet, Bluetooth, Other	Zigbee	Shelly Pro EM-50
Integrations	Google Home, Alexa, Home Assistant	Home Assistant	Shelly Pro EM-50
Data & Monitoring	Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts	Usage Alerts	Shelly Pro EM-50
Local Control	Local API, MQTT, Local Web Interface	None	Shelly Pro EM-50
Relay Output	YES	NO	Shelly Pro EM-50
Load Management	YES	NO	Shelly Pro EM-50
Breaker Panel Install	YES	YES	Tie
Smart Meter Port	NO	NO	Tie

Winner

Shelly

Shelly Pro EM-50

$119.99

Buy on Amazon USA

+ Connectivity: 2.4 GHz WiFi, Ethernet, Bluetooth, Other
+ Integrations: Google Home, Alexa, Home Assistant
+ Data & Monitoring: Energy Cost Tracking, Time-of-Use Rates, Data Export, Usage Alerts
- Price: $119.99 vs $82.61
- Metering: Solar Net Metering, Power Factor Readings vs Three-Phase Support, Solar Net Metering, Power Factor Readings

Zemismart

Zemismart SDM01

50% OFF

$82.61

$165.22

Buy on Official Store

+ Price: $82.61
+ Metering: Three-Phase Support, Solar Net Metering, Power Factor Readings
- Connectivity: Zigbee vs 2.4 GHz WiFi, Ethernet, Bluetooth, Other
- Integrations: Home Assistant vs Google Home, Alexa, Home Assistant

Frequently Asked Questions

Which is better overall: Shelly Pro EM-50 or Zemismart SDM01?

Shelly Pro EM-50 has the stronger overall profile in this comparison, especially for connectivity, integrations, and data & monitoring.

What is the biggest difference between Shelly Pro EM-50 and Zemismart SDM01?

Price is one of the clearest differences: Shelly Pro EM-50 lists $119.99, while Zemismart SDM01 lists $82.61.

Which one looks better on price?

Shelly Pro EM-50 is listed at $119.99, while Zemismart SDM01 is listed at $82.61. Zemismart SDM01 (better spec).

Who should buy Shelly Pro EM-50?

Choose Shelly Pro EM-50 if your priority is connectivity and integrations and that matters more than price.

Who should buy Zemismart SDM01?

Choose Zemismart SDM01 if your priority is price and metering and that matters more than connectivity.

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