Refoss EM01P vs Zemismart SPM02 comparison

Data from Amazon and official Refoss and Zemismart sites.

2026 verdict

Refoss EM01P wins the 2026 matchup against Zemismart SPM02, mainly on smart meter port, data & monitoring, and local control. The comparison tilts its way because of smart meter port, data & monitoring, and local control, with its broader overall balance keeping it in front. Zemismart SPM02 still makes sense if price, metering, and breaker panel install are your priority, but most buyers should still lean toward Refoss EM01P. For the average buyer, Refoss EM01P is the safer choice.

Winner

Refoss

Refoss EM01P

16% OFF

$69.99

$82.99

Buy on Official Store

Zemismart

Zemismart SPM02

40% OFF

$42.60

$70.99

Buy on Official Store

Feature	Refoss EM01P	Zemismart SPM02	Winner
Price	$69.99	$42.60	Zemismart SPM02
Metering	Solar Net Metering	Three-Phase Support, Solar Net Metering	Zemismart SPM02
Breaker Panel Install	NO	YES	Zemismart SPM02
Smart Meter Port	YES	NO	Refoss EM01P
Data & Monitoring	Energy Cost Tracking, Data Export	Usage Alerts	Refoss EM01P
Local Control	Local API, MQTT, Local Web Interface	None	Refoss EM01P
Connectivity	2.4 GHz WiFi	Zigbee	Tie
Integrations	Home Assistant	Home Assistant	Tie
Relay Output	NO	NO	Tie
Load Management	NO	NO	Tie

Winner

Refoss

Refoss EM01P

16% OFF

$69.99

$82.99

Buy on Official Store

+ Smart Meter Port: YES
+ Data & Monitoring: Energy Cost Tracking, Data Export
+ Local Control: Local API, MQTT, Local Web Interface
- Price: $69.99 vs $42.60
- Metering: Solar Net Metering vs Three-Phase Support, Solar Net Metering

Zemismart

Zemismart SPM02

40% OFF

$42.60

$70.99

Buy on Official Store

+ Price: $42.60
+ Metering: Three-Phase Support, Solar Net Metering
+ Breaker Panel Install: YES
- Smart Meter Port: NO vs YES
- Data & Monitoring: Usage Alerts vs Energy Cost Tracking, Data Export

Frequently Asked Questions

Which is better overall: Refoss EM01P or Zemismart SPM02?

Refoss EM01P has the stronger overall profile in this comparison, especially for smart meter port, data & monitoring, and local control.

What is the biggest difference between Refoss EM01P and Zemismart SPM02?

Price is one of the clearest differences: Refoss EM01P lists $69.99, while Zemismart SPM02 lists $42.60.

Which one looks better on price?

Refoss EM01P is listed at $69.99, while Zemismart SPM02 is listed at $42.60. Zemismart SPM02 (better spec).

Who should buy Refoss EM01P?

Choose Refoss EM01P if your priority is smart meter port and data & monitoring and that matters more than price.

Who should buy Zemismart SPM02?

Choose Zemismart SPM02 if your priority is price and metering and that matters more than smart meter port.

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