People ask me this all the time, usually while standing in the cleaning aisle holding one of each box. A carpet cleaner and a steam cleaner look like they should do the same job. They don't. One pulls dirt out of your carpet with water and suction.
The other blasts hot vapor at a surface and wipes it off. Different tools, different jobs, and buying the wrong one means you'll be back in that aisle in six months.

BISSELL TurboClean PET (3948)
Pulls real dirty water, easy tanks, the machine I recommend to most homeowners
Cord is too short, tank tabs feel fragile

DREAME N20 Steam Carpet Cleaner
Combines extraction and steam in one pass, genuine innovation
Pricey, heavier than the BISSELL, still needs a separate vacuum

Hoover PowerDash Pet Compact
Fast drying, lightweight, genuinely easy to carry
Leaves hair clumps behind, small tanks, dribbles when off

Starrybot Portable Carpet Cleaner with Steam
Cheap entry point, portable, heats water
Spot cleaner only, tiny tanks, not a whole-house machine

NEWBULIG Steam Mop
Steam mops are great for hard floors and sanitizing
Doesn't extract anything, useless on real carpet stains

Uwant Carpet Cleaner Machine with Steam
Strong suction, heated cleaning, good for pet homes
Newer brand, fewer long-term buyer reports
Prices and availability were captured from Amazon Creators API and may change.
Verdict First
The carpet cleaner wins for anyone with actual carpet stains, and the BISSELL TurboClean PET is the best one I've tested for the money, because it pulls up real dirty water without costing a fortune or breaking your back.
A steam cleaner is a different animal. It sanitizes. It doesn't extract. If your problem is a dog that rolled in something dead, you need a carpet cleaner. If your problem is a bathroom floor that needs sanitizing, you need steam. Most households need both, but if you're only buying one and you have carpet, buy the carpet cleaner.
BISSELL TurboClean PET (3948)
Pros: Pulls up pet hair I thought I'd already vacuumed. Tanks come off and go back on without a fight. Lightweight enough to carry upstairs without cursing. Cons: The cord won't reach across a family room. The tabs on the dirty water tank feel like they'll snap. The brushroll area needs a sink rinse after every use.
DREAME N20 Steam Carpet Cleaner
Pros: Steam and extraction in one pass. Heated cleaning actually helps with set-in stains. The steam sanitizes while the suction pulls the water back out. Cons: Costs more than double the BISSELL. Heavier. You still need to vacuum first.
Compared To
The DREAME N20 is the interesting one here because it's trying to bridge the gap. It's a carpet cleaner with a steam function, so you get the extraction of a traditional machine plus the sanitizing heat of steam.
At ~$199.99, it's a real investment. The question is whether the steam matters enough to justify the price.
For a home with a dog that has accidents and a family that gets colds, maybe. For most people, the BISSELL at ~$130-160 does 90 percent of the job for half the price.
The Hoover PowerDash Pet Compact is the lightweight alternative at ~$90-120. It dries carpets in about 30 minutes, which is genuinely impressive. But it leaves hair in golf ball-sized clumps instead of sucking it up, and the tanks are small enough that you'll refill constantly. It's a spot cleaner, not a whole-house machine.
The Starrybot Portable Carpet Cleaner with Steam at ~$80-110 is the budget entry. It's portable, it heats water, and it's fine for a stain on the stairs. But the tanks are tiny and it's not going to clean a family room. It's a spot cleaner with steam pretensions.
The NEWBULIG Steam Mop at ~$60-90 is a hard floor tool. It's great for tile and sealed hardwood. It is not a carpet cleaner. It doesn't extract anything. If you use it on carpet, you're just pushing damp dirt around. Don't.
The Uwant Carpet Cleaner Machine with Steam at ~$250-320 is the DREAME's competitor. It has strong suction and heated cleaning, and early buyer reports are positive. But it's a newer brand with less long-term data, and I'd rather recommend a machine I've seen survive a year of Marty's fur.
How I Tested
I run every machine the same way. I weigh the dirty water tank before and after. I clock the drying time. I lift the thing myself, because my back has been the real review since 2009. I use my own rugs, my own dog's fur, and my own patience.
The dirty water test is the only one that matters. If the tank comes out clear, the machine is just spraying perfume on your problems. If it comes out black, that's the proof. The BISSELL pulled up water so dark I had to dump it twice on a rug I'd vacuumed the same morning.
Performance
The BISSELL TurboClean PET is the machine I recommend to most homeowners. It's not perfect, but it's the sweet spot. The suction pulls up pet hair that I thought I'd already vacuumed. I've been testing that claim on my own rugs with Marty's fur for years, and it holds up.
The cord is the weak point. One buyer reported the cord getting stripped down to the wire where they held it. I haven't had that happen yet, but I can see how it would. The tabs to pull up and remove the dirty water tank stick. I felt like I was going to break something the first time I tried.
The DREAME N20 is heavier, but the steam makes a difference on set-in stains. I tested it on a spot where Marty had an accident that I didn't find for two days. The BISSELL got it mostly out. The DREAME got it out completely, and the steam sanitized the area in a way that a cold-water extraction can't.
The Hoover PowerDash dries fast. That's its superpower. 30 minutes to dry to the touch is real. But it left hair clumps on my rug that I had to pick up by hand. For a machine marketed at pet owners, that's a problem.
Durability
I've been testing the BISSELL and the Hoover side by side for three months. The BISSELL still pulls strong. The Hoover still dries fast. Both have the same issue every machine in this category has: the clean-out instructions are inadequate.
The brushroll area is a nightmare to clean on most units. The hose is where the mold grows. I've had that experience before. Leave any foul water in the hose and gross mold grows inside. You have to take the hose into the bathtub and run a lot of water through it. A bunch of dirty water will come out that you didn't know was in there.
If you're not willing to do that after every use, you're going to end up with a machine that smells worse than the stains it was supposed to remove.
Value
The BISSELL pays for itself in four or five rentals. At ~$30 a rental from the grocery store, that's ~$120-150. You're at break-even after half a dozen uses, and you get to keep the machine.
The DREAME takes longer to pay off, but it combines two tools. If you'd otherwise buy a separate steam mop for hard floors, the math gets closer.
The Hoover is the best value if your job is small. A puppy having accidents, a senior cat upchucking hairballs, a Yorkie who won't go outside when it's raining. If you have a Yorkie, you know what I'm talking about. The Hoover will handle it, and it dries fast enough that you won't have to worry about mold.
Should You Buy It?
If you have carpet and any kind of pet, buy the BISSELL TurboClean PET. It's the best machine I've tested for the money, and it'll handle everything from upchucks to muddy paw prints. If you have hard floors and want to sanitize without chemicals, buy a steam mop like the NEWBULIG. If you have both and a bigger budget, the DREAME N20 combines the two, but you'll pay for the convenience.
One more thing. If you have a septic tank, do not drain the waste container into the sink. The vacuum picks up carpet fibers that never break down and will plug your leaching field. Strain it through a kitchen sieve you use only for this purpose. There... I just saved you a gazillion $$$. Really.
Update: I'm three months into the long-term test of the BISSELL and the Hoover, and I'm tracking cord length complaints across every machine in this price range. So far, nobody has solved it. The DREAME's cord is longer, but not by enough. I'm also working on a guide to cleaning the machines themselves, because the clean-out instructions are where every manufacturer gives up.
