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Updated August 2026: stain-removal scores re-verified against Vacuum Wars’ August 26, 2026 test-data refresh. The Shark StainStriker HairPro sells for $169.99 at Shark’s own store. Bissell’s SpotClean Pro and Little Green Pro are covered here as one platform sold under two names.
In Bissell vs Shark, the Bissell Little Green Pro (2505) is the portable spot cleaner to buy for most homes. It runs $155.34 at Vacuum Wars’ August 26 price check. It also has a 96-ounce clean tank and 22-foot cord, per Bissell’s own spec sheet. And it posted an 87.08% stain-removal score in Vacuum Wars’ colorimeter testing, 0.12 points off the best result. The Shark StainStriker HairPro posted that best result, 87.2%. At $169.99 on Shark’s own store, it charges the most per point of any machine here. When a lab spread is under one point, tank size, reach, and price decide the buy. Suction claims don’t.
Cats leave stains you don’t see coming until it’s too late. I have done enough late-night cleanups after my cats to know tank size matters more than the suction number on the box. A machine that runs dry halfway through a job just means round two.
The claim sheet: Shark’s 20X, Bissell’s 20 minutes, one lab number
Here is the number that referees everything else on this page. Vacuum Wars’ colorimeter testing of portable spot cleaners ran on dried stains, measured by instrument and updated August 26, 2026. The four machines below all landed between 86.27% and 87.2% stain reduction. The site’s average across every model it has run is 84.5%. Under one point separates the cheapest corded machine from the most expensive. Now hold each maker’s favorite claim up against that.
What Does Each Maker’s Claim Mean?
| The claim, as printed | What checks out | My call |
|---|---|---|
| Shark: “20X more stain-striking power” (StainStriker PX201 page) | The 20X describes Shark’s oxy formula mixing at the nozzle versus not using it — chemistry, not a ranking. The PX201 scored 86.27% in the colorimeter test, fourth of the four machines here. | Formula marketing. Ignore the multiplier. |
| Shark: “Powerful suction” (same page) | Shark’s own spec sheet rates the PX201 at 450 watts and 3.3 amps; Bissell rates the Little Green Pro at 5.7 amps. The score gap between them: 0.81 points. | Amps don’t sort the results. Stop shopping by them. |
| Bissell: “up to 20 minutes” of cordless runtime (Little Green Mini Cordless 4015 page) | Bissell’s own fine print bases that figure on roughly 53% trigger engagement. Continuous spray-and-suction time works out nearer 10–11 minutes. | One mess. Not a couch. |
| Bissell: “TRIPLE ACTION Cleaning — spray, scrub, suction” (same page) | Describes every portable spot cleaner sold, including both Sharks. | True. Useless. |
None of those claims is a lie. Each one is measured against the opponent that flatters it. The lab measured them against the same dried stain, and the answer came back: they clean about the same. So the rest of this page prices the things that differ — tanks, cords, weight, warranty, dollars.
Which portable spot cleaner costs the least per cleaning point?
The Bissell Little Green Mini Cordless costs the least at $1.50 per cleaning point. The Shark StainStriker HairPro costs the most at $1.95 per point. That’s a 30% premium for a difference in stain removal the instrument can barely measure.
Divide each machine’s current price by its measured stain-reduction score. That gives you the cost of one point of verified cleaning. The spread runs $1.50 to $1.95 — a 30% premium for machines the instrument can barely tell apart.
| Machine | Price (source, 8/27/26) | Stain score (Vacuum Wars) | $ per point |
|---|---|---|---|
| Bissell Little Green Mini Cordless 4015 | $129.99, Bissell store | 86.6% | $1.50 |
| Shark StainStriker PX201 | $139.99, Shark store | 86.27% | $1.62 |
| Bissell Little Green Pro 2505 | $155.34, Vacuum Wars listing | 87.08% | $1.78 |
| Shark StainStriker HairPro PX251 | $169.99, Shark store | 87.2% | $1.95 |
Arithmetic, in the open: $129.99 ÷ 86.6 = $1.50; $169.99 ÷ 87.2 = $1.95. Two footnotes. Bissell’s own store had no visible price on the Little Green Pro page when I checked. So its row uses the price Vacuum Wars listed on August 26. And the cordless Mini has been tracked as low as $95 at retail this summer. At that price, its dollars-per-point drops to $1.10, and nothing else comes close.
Bissell Little Green Pro: Beats Shark on Tank and Cord
The Bissell Little Green Pro takes the podium anyway. Its 96 ounces and 22-foot cord make the case for logistics at scale. Bissell’s spec sheet gives it a 3/4-gallon (96-ounce) clean tank and a 22-foot cord. It also lists a 5-foot hose and 13 pounds of machine weight. That tank is more than double either Shark’s. And 22 feet of cord plus 5 of hose reaches an entire sofa or a flight of stairs. It can also cover most of a car interior from one outlet without a refill. Its 87.08% score means you give up 0.12 points to the best machine in the test. In exchange, you gain a workday of capacity.
One honesty note: Vacuum Wars lists the unit it tested at 92 ounces, 20 feet, and 12.4 pounds. Bissell’s current 2505 page instead says 96 ounces, 22 feet, and 13 pounds. Either the spec sheet was revised or trim levels differ. The gap changes no verdict on this page, and I’ve used Bissell’s published figures for the spec rows. Skip the Little Green Pro if your messes arrive one pet accident at a time. Hauling and rinsing a 13-pound machine for a coaster-sized stain gets old by the third weekend.
One machine, two names: SpotClean Professional and Little Green Pro
If you’ve been cross-shopping the Bissell SpotClean Professional 3624 against the Little Green Pro 2505, stop. Bissell’s own user guide covers the 3624, 2458, 2505, and 2891 as one document. And the 2505 page still carries the SpotClean Pro’s specs: 96-ounce tank, 22-foot cord, 5.7 amps. Same platform, refreshed branding. The 3624 still circulates at retail, so the play is simple. Whichever name is cheaper the week you’re buying is the one to buy. Do not pay a premium for either badge.
Shark StainStriker vs. Bissell: Lab Favorite, My Pick to Skip
The Shark StainStriker HairPro is both the best cleaner in the test and the machine I'd skip. Strange sentence to write, but the sheet says it. Its 87.2% edges the field. Vacuum Wars’ standalone HairPro review rates it a serious pet-mess upgrade. Its added hair tool is a real answer for fur-heavy homes. But at $169.99 you pay $1.95 per cleaning point in a category with a 0.93-point spread. That buys a 41-ounce tank and under 12 feet of cord. The premium buys the smallest real advantage on this page.
The standard PX201 is the more defensible Shark: $139.99 and second-best dollars-per-point of the corded machines. It also has the strongest warranty here — 3 years limited, per Shark’s spec sheet. Bissell’s Mini gets 2 years, and the corded Bissells get shorter standard coverage. Two catches. Shark’s own store listed the PX201 as out of stock at my August 27 check. It remains stocked at major retailers, though. And its weight is genuinely unclear: Shark’s spec sheet prints 13.23 pounds while Vacuum Wars’ scale recorded about 8.4. That smells like a shipping weight on Shark’s side, and I can’t verify which is right. Plan around the scale number. Skip both Sharks if your jobs are whole-couch or whole-staircase. Sub-42-ounce tanks mean refill trips the Bissell Pro doesn’t take.
Little Green Mini Cordless: eleven honest minutes
The Bissell Little Green Mini Cordless gives you eleven honest minutes. Speed matters more than gear here, and Consumer Reports' stain-removal guidance is blunt about acting before a stain sets. That’s the Mini’s whole argument. No outlet hunt — grab it while the spill is still a spill. It scored 86.6%, within a point of machines with wall power. And at $1.50 per point, it’s the value line of the whole table.
Its limits are structural, and Bissell prints them if you read down the page. The clean tank holds 16 ounces and the dirty tank 13.5 ounces. The machine weighs 7 pounds and needs a 4-hour recharge. That “up to 20 minutes” figure is built on 53% trigger engagement. Call it 10 to 11 minutes of continuous work. Right machine for an apartment or as the fast-response second unit in a pet household. Skip it as an only cleaner in a house with carpeted stairs.
Does Hoover still have a spot cleaner worth considering?
Hoover’s corded Spotless, long the third name in this category, is gone from major retailers’ new stock. The current entry is the cordless ONEPWR Spotless GO (BH12001), which competes with the Little Green Mini. It mainly makes sense if you already own ONEPWR batteries. No colorimeter data comparable to the machines above has been published for it, as far as I could find. So it stays unranked here rather than guessed at.
Bissell or Shark: which wins the stain-removal tie-breaker?
After enough late-night cat-stain cleanups, the Bissell Little Green Pro is the one I would buy first, because its bigger tank and longer cord settle a near statistical tie. 87.08 versus the Shark StainStriker HairPro's 87.2 is a coin flip. But tank size, reach, and price tip it to the Little Green Pro. The Little Green Pro and the HairPro are a statistical tie on cleaning. They are not a tie on anything else. 96 ounces against 41, 22 feet of cord against under 12, $155.34 against $169.99. My money takes the Bissell Little Green Pro and doesn’t think long. Disagree because the 3-year warranty or the pet-hair tool matters more in your house? Fair enough — that’s the PX201’s case and the HairPro’s case, respectively. The tables above give you the numbers to re-run it.
Checked on August 27: prices, specs, and the numbers that disagree
Stain scores come from Vacuum Wars’ instrumented testing as refreshed August 26, 2026. Prices were pulled August 27 from the source named in each row. That’s Shark’s store for both StainStrikers and Bissell’s store for the Mini Cordless. It’s Vacuum Wars’ listing for the Little Green Pro, whose maker page showed no price. Tank, cord, weight, and warranty figures come from each maker’s published spec sheet. Two places disagreed: the PX201’s weight and the Little Green Pro’s tank-and-cord trim. Both are flagged in their sections rather than smoothed over. The dollars-per-point column is my own arithmetic from those inputs.
Every figure here comes from Vacuum Wars’ colorimeter testing and each maker’s own current spec sheets and store pages. Our process is documented in our editorial standards. Spot cleaning is one front in the floor wars. The full-size question is covered in our rent-versus-buy carpet cleaner comparison. Sticks get our cordless stick vacuum head-to-head, grout our steam cleaner comparison, and the rest lives in Home & Living.
Prices are approximate, current as of publication, and change frequently — confirm the latest price with the retailer before buying.
