The catch
BISSELL Little Green Max Pet SmartMix
A large sectional is too much for the 32-ounce tanks, which suit spot work.
Side by side
Little Green Max Pet SmartMix vs Pet Pro Compared: Pet Pro carries more solution while Max automates dosing for quick spills
Quick verdict
For quick accidents, the Max Pet SmartMix is the easier machine, since it meters formula and weighs 8.2 pounds. The Pet Pro is the stronger multi-surface pet cleaner, with 64 and 48-ounce tanks, a five-foot hose and three specialized tools.
Before you buy
Why, and what it costs you
Clean tank: how big the gap is
The published “Clean tank” figure is 100% higher on BISSELL Little Green Pet Pro: 64 ounces, against 32 ounces on BISSELL Little Green Max Pet SmartMix.
Where this comes from
This sets how often you stop to refill, empty or start another batch. The percentage is worked out from the lower published figure.
The catch
BISSELL Little Green Pet Pro
Solution has to be mixed by hand.
BISSELL Little Green Max Pet SmartMix
- Why pick it
- Small spots come up often
- Automatic mixing removes the need to guess
- The catch
- A large sectional is too much for the 32-ounce tanks, which suit spot work.
BISSELL Little Green Pet Pro
- Why pick it
- You often tackle a sofa or stairs
- Bigger tanks mean fewer sink trips
- The catch
- Solution has to be mixed by hand.
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What this page compares
Lighter to carry with automatic dosing, or larger tanks with a broader set of pet tools.
This one comes down to clean tank and mixing first, then to the limits of your own setup.
Day to day
How each one fits your routine
A larger clean tank also adds weight to carry
About 2.1 pounds of water fit in the 32-ounce tank of Max SmartMix, and about 4.2 pounds in the 64-ounce tank of Pet Pro. Added to the listed 8.2- and roughly 11-pound bodies, that comes to about 10.3 versus 15.2 pounds before recovered liquid. Max is the better choice for frequent carrying to isolated sofa or stair spots. Pet Pro is better when longer work near one stable location makes the larger supply worth that load.
Where this comes from
Water is taken at approximately 8.34 pounds per US gallon. Formula and recovery contents are excluded, which makes these planning estimates and not manufacturer working-weight specifications.
The formula-handling routine changes with water-only rinsing
The manual for Max SmartMix provides a Rinse Mode that uses water without its automatically metered formula. That can simplify a permitted-fabric routine in which you want a separate water pass after cleaning. Pet Pro's manually mixed tank has you prepare the tank contents for the intended step. Max is the pick if you switch between those steps often. Pet Pro is the pick if manual preparation is acceptable and the larger tank is more useful.
Where this comes from
The difference lies in controls and preparation, and no claim is made that every fabric needs rinsing. Follow the surface and formula instructions, and do not treat extra wet passes as automatically better cleaning.
Which one fits
Pick the situations that sound like you
I do not want to measure out formula every time
BISSELL Little Green Max Pet SmartMix lists “32 ounces” for clean tank, while BISSELL Little Green Pet Pro lists “64 ounces”. This sets how often you stop to refill, empty or start another batch.
- BISSELL Little Green Max Pet SmartMix
- Better fit
- BISSELL Little Green Pet Pro
- Depends
I am concerned about carrying weight
Full-size and commercial-style machines have a higher empty weight than its published weight.
- BISSELL Little Green Max Pet SmartMix
- Better fit
- BISSELL Little Green Pet Pro
- Depends
Wet pet hair ends up on the carpet
Picking up hair during wet cleaning is what its brush and debris handling are designed for.
- BISSELL Little Green Max Pet SmartMix
- Depends
- BISSELL Little Green Pet Pro
- Better fit
The job includes carpeted stairs
BISSELL Little Green Max Pet SmartMix lists “Compact portable hose” for hose, while BISSELL Little Green Pet Pro lists “5 feet”. This sets your working reach and where the main unit or power source has to sit while you work.
- BISSELL Little Green Max Pet SmartMix
- Good
- BISSELL Little Green Pet Pro
- Better fit
Washable area rugs will see most of the cleaning
Manufacturer-approved synthetic rugs can suit its controllable spray and extraction.
- BISSELL Little Green Max Pet SmartMix
- Good
- BISSELL Little Green Pet Pro
- Better fit
Reach around furniture or stairs is what I need
Useful range from the parked machine comes from its documented hose length.
- BISSELL Little Green Max Pet SmartMix
- Depends
- BISSELL Little Green Pet Pro
- Better fit
In practice
Differences you will notice
Clean tank: how big the gap is
The published “Clean tank” figure is 100% higher on BISSELL Little Green Pet Pro: 64 ounces, against 32 ounces on BISSELL Little Green Max Pet SmartMix.
How we worked this out
This sets how often you stop to refill, empty or start another batch. The percentage is worked out from the lower published figure.
Option A
BISSELL, 38572
Little Green Max Pet SmartMix
Formula is metered automatically on this light portable, which also comes with a self-cleaning stain tool.
- Best for
- Small spots come up often
Facts we checked
- Clean tank: 32 ounces
- Mixing: Automatic SmartMix
- Hose: Compact portable hose
- Listed for the Max SmartMix are 8.2 pounds and a 32-ounce clean tank.
Option B
BISSELL, 3909
Little Green Pet Pro
Pet hair, crevice and self-cleaning stain tools come with this portable, which has higher capacity.
- Best for
- You often tackle a sofa or stairs
Facts we checked
- Clean tank: 64 ounces
- Mixing: Manual
- Hose: 5 feet
- Listed for the Pet Pro are approximately 11 pounds and a 64-ounce clean tank.
Spec by spec
Where they really differ
| Spec | BISSELL Little Green Max Pet SmartMix | BISSELL Little Green Pet Pro | In practice |
|---|---|---|---|
| Clean tank | 32 ounces | 64 ounces | It determines how frequently you have to refill, empty or begin a new batch. |
| Mixing | Automatic SmartMix | Manual | How many steps fall to you and how much happens automatically both come down to this. |
| Hose | Compact portable hose | 5 feet | It determines how far you can reach while working and where the main unit or power source has to be placed. |
Trade-offs
What each pick costs you
With BISSELL Little Green Max Pet SmartMix
- You only get SmartMix's convenience if you use the compatible formula reservoir correctly.
With BISSELL Little Green Pet Pro
- Cleaning a whole carpeted room with the portable head is inefficient.
By the numbers
What the data shows
What we found across the carpet cleaners we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| BISSELL Little Green Max Pet SmartMix |
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| BISSELL Little Green Pet Pro |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
BISSELL Little Green Max Pet SmartMix
Small spots come up often
See price & reviews on AmazonBISSELL Little Green Pet Pro
You often tackle a sofa or stairs
See price & reviews on AmazonEach link opens in a new tab.
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