SMI800W 800W WiFi Grid-Tie Microinverter Review (2026)

PlugInSolarHub specification score: 4.5/5 — Best value smart microinverter · $$

How we assessed this: we have not had physical access to this unit. Everything here is read from the manufacturer’s published specification and the retailer listing, cross-checked against each other on the date shown. The score reflects specification, price and warranty against the alternatives we track. It is not a test result. If we ever test something ourselves, we will say so plainly on the page.

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The SMI800W is the microinverter we point most plug-in solar beginners to. It does exactly what a balcony-solar brain should: convert your panel's power to safe household AC, feed it through a normal outlet, and show you live production in a clean WiFi app.

Output & monitoring

Rated 800W with ~96% efficiency and pure sine output. The WiFi app shows real-time and historical production so you can tune your panel angle for more.

Who it's for

Buyers who already have (or will choose) their own panels and want a reliable, app-connected inverter. Pair it with 1-2 ~400W panels for a classic balcony setup.

Verdict

The best balance of price, efficiency and smarts. If you'd rather buy everything together, get the complete AUECOOR kit instead.

Pros & cons

Data table
Pros	Cons
WiFi app & live data	Panels sold separately
96% efficiency	800W cap on one unit
Pure sine, safe	Generic brand

Check price on Amazon

Back in stock on Amazon — $199, limited stock (checked July 28, 2026).

→ Estimate your savings with this gear

Related reviews: Y&H 600W microinverter · Y&H 1200W microinverter · all reviews.