Bissell Big Green Professional vs Hoover SmartWash+ Automatic
Bissell Big Green Professional (#2, best premium) vs Hoover SmartWash+ Automatic (#4): in our Carpet Cleaners & Extractors scoring the Bissell Big Green Professional totals 8.8/10 and the Hoover SmartWash+ Automatic 8/10. At $429 versus $249, the Hoover SmartWash+ Automatic costs $180 less.
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TopsFive comparison scores
Side by side
| Bissell Big Green Professional | Hoover SmartWash+ Automatic | |
|---|---|---|
| Price | $429 | $249 |
| Tank | 1.75 gal clean | 1 gal clean |
| Build | Commercial-grade | — |
| Durability | Years of heavy use | — |
| Size | Large | — |
| Weight | Heavy | — |
| Operation | — | Automatic push/pull |
| Feature | — | Auto-sensing |
| Control | — | Minimal |
| Price | — | $190-250 |
How they differ in real use
Built from our carpet cleaners scoring, each product's published specifications, and verified owner feedback — not hands-on testing.
Both the Bissell Big Green Professional and the Hoover SmartWash+ Automatic made our Top 5 Carpet Cleaners & Extractors, at #2 (best premium) and #4. Same machine carpet cleaning services rent out. 1.75-gallon tanks for whole-house without refilling. Commercial durability for years of heavy use. Simplest operation—push forward to wash, pull back to dry. Automatic sensing prevents oversaturation. Ideal for anyone intimidated by carpet cleaner operation.
We score carpet cleaners & extractors on Stain Removal (35%), Tank Capacity (25%), Features (20%), Ease of Use (10%) and Value (10%). On that basis the Bissell Big Green Professional totals 8.8 out of 10 and the Hoover SmartWash+ Automatic 8. The widest gap is Tank Capacity, where the Bissell Big Green Professional scores 10 against 8 for the Hoover SmartWash+ Automatic — water capacity. Stain Removal also separates them: 9 for the Bissell Big Green Professional versus 8 for the Hoover SmartWash+ Automatic. The Hoover SmartWash+ Automatic claws back ground on Ease of Use.
On paper, the specifications that actually differ: Tank — 1.75 gal clean on the Bissell Big Green Professional versus 1 gal clean on the Hoover SmartWash+ Automatic.
Pricing as of January 27, 2026: $429 for the Bissell Big Green Professional and $249 for the Hoover SmartWash+ Automatic, a $180 difference in the Hoover SmartWash+ Automatic's favor. Owners praise the Bissell Big Green Professional for commercial-grade and 1.75 gal largest tanks; the most common complaint is $429 higher price. Owners praise the Hoover SmartWash+ Automatic for automatic operation and no triggers or buttons; the most common complaint is less control.
Bissell Big Green Professional
- Commercial-grade
- 1.75 gal largest tanks
- Rental-quality results
- Years of durability
- $429 higher price
- Heavy and large
- Overkill for small jobs
Hoover SmartWash+ Automatic
- Automatic operation
- No triggers or buttons
- Prevents oversaturation
- 1 gal tank
- Less control
- Basic features
- Mid-range performance
Which should you buy?
The Bissell Big Green Professional is the better fit for large homes and frequent deep cleaning — it is the higher-scoring pick here, chiefly for Tank Capacity and Stain Removal. The Hoover SmartWash+ Automatic is the better fit for first-time users and simple operation preference, and the stronger choice if Ease of Use matters more to you than the overall score. If the $180 saving matters more than Tank Capacity, the Hoover SmartWash+ Automatic is the better value. The Bissell Big Green Professional is a poor fit for small apartments; the Hoover SmartWash+ Automatic is a poor fit for control enthusiasts.
Choose the Bissell Big Green Professional if
- Large homes
- Frequent deep cleaning
- Commercial needs
Skip it if
- Small apartments
- Light use
Choose the Hoover SmartWash+ Automatic if
- First-time users
- Simple operation preference
- Intimidated by cleaners
Skip it if
- Control enthusiasts
- Professional results
Common questions
Is the Bissell Big Green Professional better than the Hoover SmartWash+ Automatic?
In our Carpet Cleaners & Extractors ranking the Bissell Big Green Professional scores higher overall, 8.8 to 8, with the biggest advantage in Tank Capacity. The Hoover SmartWash+ Automatic is stronger on Ease of Use, so it is the better pick if that matters most to you.
How much more does the Bissell Big Green Professional cost than the Hoover SmartWash+ Automatic?
$180 more as of January 27, 2026: $429 for the Bissell Big Green Professional against $249 for the Hoover SmartWash+ Automatic. Prices move, so the merchant page shows the current figure. What the extra buys is mostly Tank Capacity — 10 versus 8 in our scoring.
What is the main difference between the Bissell Big Green Professional and the Hoover SmartWash+ Automatic?
The headline spec difference is Tank: 1.75 gal clean on the Bissell Big Green Professional versus 1 gal clean on the Hoover SmartWash+ Automatic. In use, the gap that matters most is Tank Capacity (10 vs 8 in our scoring): water capacity.