UWANT B400 vs UWANT Y100: Which Steam Cleaner Should You Choose?

Introduction

Steam cleaning machines have become a practical addition to many households, especially for tackling stubborn stains on upholstery, carpets, and even car interiors. UWANT offers two models that look similar at first glance but differ in meaningful ways: the UWANT Y100 and the UWANT B400.

Both machines are designed to heat water quickly and deliver either hot water or steam to break down old, set-in stains. They also share the same core attachments, including a brush head, spray head, steam wand, scrubber, and a soft pad for delicate surfaces. The real differences lie in the hose size, weight, noise level, steam output, and how you control each machine.

This comparison breaks down those differences so you can decide which model fits your cleaning routine better.

Design and Build Comparison

The UWANT Y100 and UWANT B400 share a similar upright form factor, but the details set them apart. The Y100 weighs about 5 lb, making it noticeably lighter and easier to carry around the house. The B400 is heavier at 8.3 lb, but it includes a top handle that makes transport more convenient. The Y100 has a grab handle tucked underneath the top, which is functional but less comfortable for frequent lifting.

The hose on the Y100 has a 1-inch diameter and is 4.5 ft long. The B400 steps that up with a 1.25-inch hose that extends to 5 ft. That extra length and width give the B400 a bit more reach and a slightly larger flow path for water and steam.

Storage is another area where the two machines differ. The B400 includes onboard storage for both the power cord and attachments. A clip on the side holds accessories, and a plastic piece lets you coil the cord neatly. The Y100 relies on a Velcro strap for the cord and offers no onboard attachment storage, so you will need to keep accessories separate.

Controls and Ease of Use

The control layout is one of the biggest differences between these two machines. The Y100 uses a knob located at the top of the machine. You turn it to select off, water, hot water, or steam mode. To switch modes mid-clean, you have to walk back to the machine and adjust the knob.

The B400 takes a different approach. The power switch sits at the top, but the hot water and steam controls are built into the handle at the end of the hose. Press the water button once for hot water, or press it twice for steam. The handle also has LED indicators that show the current mode, with yellow for hot water and red for steam.

Having the controls on the handle means you can switch between hot water and steam without bending down or moving away from the surface you are cleaning. That is a genuine convenience during longer cleaning sessions.

Cleaning Performance on Upholstery

To test real-world performance, both machines were used on a fabric chair with visible stains. A cleaning solution was sprayed on the surface and left to sit for about a minute. The B400 cleaned the left half using hot water mode, with suction active at the front of the brush head to pull the dirty water back up. The Y100 handled the right half the same way.

After the chair dried, both sides came out very clean with no visible stains remaining. The results were essentially identical, which suggests that for standard upholstery cleaning, either machine will do the job well.

The B400 was also tested on a pen mark using steam mode. After applying a little cleaning solution and letting it sit, the steam brush tip was used to treat the mark. The red mark disappeared after the steam pass, and the surface was left slightly damp but clean.

Cleaning Performance on Carpets

Carpet stains are often tougher than upholstery stains, so both machines were put to the test with a ketchup stain. A stain remover was sprayed first, then the B400 worked the stain with hot water mode for three passes. The Y100 did the same on a separate section.

Both machines lifted the ketchup stain effectively. The top section cleaned by the B400 and the bottom section cleaned by the Y100 both looked noticeably cleaner after three passes. Neither machine struggled with the task, and the suction was strong enough to pull up most of the moisture.

For large surface areas, the B400 has an advantage. It outputs steam at 55 ml per minute compared to the Y100’s 30 ml per minute. That higher output means the B400 can cover larger areas faster, which is useful for big carpets or multiple rooms.

Noise Level and Heat-Up Time

Noise is a practical consideration if you plan to clean while others are home. The Y100 operates at 85 dB, while the B400 is quieter at 75 dB. That 10 dB difference is noticeable in practice, making the B400 the better choice for quieter cleaning sessions.

Both machines take roughly 20 to 30 seconds to heat up the water, so there is no meaningful difference in wait time. Once heated, both deliver consistent hot water and steam.

Maintenance and Self-Cleaning

Both machines include a self-cleaning attachment that helps flush out the hose after use. You push the attachment onto the end of the hose and run hot water mode. The water circulates through the hose and gets sucked back in, cleaning out any residue. This is a simple way to keep the machine fresh between uses.

Emptying the dirty water tank is straightforward on both models. The B400 has a release button on the tank; you lift the handle, press the button, and lift the container out. The Y100 uses a side handle that lets you lift the tank directly. After rinsing, both tanks should be left to air dry before storing the machine.

The B400’s onboard storage for the cord and attachments makes post-cleanup tidier. The Y100 requires a bit more effort to keep everything organized, but it is not a dealbreaker.

Which One Should You Buy?

The UWANT Y100 is the lighter, more budget-friendly option. At 5 lb, it is easy to carry and maneuver, and it delivers the same cleaning results on upholstery and carpets. If you clean smaller areas and do not mind walking back to the machine to switch modes, the Y100 is a solid choice.

The UWANT B400 justifies its higher price with several upgrades. The handle-mounted controls are more convenient, the hose is longer and wider, the steam output is nearly double, and it runs quieter. The onboard storage for the cord and attachments is a practical bonus. If you frequently clean large surfaces or want a more polished experience, the B400 is worth the extra cost.

Conclusion

Both the UWANT B400 and UWANT Y100 are capable steam cleaners that handle stains on upholstery and carpets effectively. The Y100 is lighter and simpler, while the B400 adds convenience features like handle controls, higher steam output, quieter operation, and better storage.

Your choice comes down to how you clean. For quick spot treatments and smaller spaces, the Y100 gets the job done. For larger areas, faster coverage, and a more comfortable cleaning experience, the B400 is the stronger pick.