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Mint Automatic Hard Floor Cleaner, 4200

by Mint
| 90 answered questions

Price: $230.00 + $8.09 shipping
Only 5 left in stock.
Ships from and sold by Wisdom Deal in easy-to-open packaging.
  • Compact robot floor cleaner runs up to 3 hours on single charge using microfiber cloths or most brands of disposable cloths
  • Guided by North Star Navigation System to methodically clean open areas, around furniture and rugs, and along room perimeter
  • Whisper-quiet operation; turns itself off when finished
  • Low maintenance with no bins to empty or filters to change
  • Measures 9.6 inches wide by 8.5 inches deep by 3.1 inches high; 1-year warranty

Item Under Review

While this item is available from other marketplace sellers on this page, it is not currently offered by Amazon.com because customers have told us there may be something wrong with our inventory of the item, the way we are shipping it, or the way it's described here. (Thanks for the tip!)

We're working to fix the problem as quickly as possible.

22 new from $174.00 26 used from $88.91 1 refurbished from $195.90
Is this a gift? Please note that this item ships in its own packaging and cannot be gift-wrapped or concealed.

There is a newer version of this item:

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Frequently Bought Together

Mint Automatic Hard Floor Cleaner, 4200 + Mint Microfiber Cloths, Pack of 3
Price for both: $245.98

These items are shipped from and sold by different sellers.

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  • Buy Used and Save: Buy a Used "Mint Automatic Hard Floor Cleaner, 4200" and save 55% off the $199.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.
  • Six-Month Financing: For a limited time, purchase $149 or more using the Amazon.com Store Card and pay no interest for 6 months on your entire order if paid in full in 6 months. Interest will be charged to your account from the purchase date if the promotional balance is not paid in full within 6 months. Minimum monthly payments required. Subject to credit approval. 1-Click and phone orders do not apply. See complete details and restrictions.

Product Details

Product Manual [PDF]
  • Product Dimensions: 8.5 x 9.6 x 3.1 inches
  • Shipping Weight: 7.2 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • Origin: Imported (USA)
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B00408PCEW
  • California residents: Click here for Proposition 65 warning.
  • Item model number: 4200
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (775 customer reviews)
  • Amazon Best Sellers Rank: #11,028 in Home & Kitchen (See Top 100 in Home & Kitchen)
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Product Description

The Mint Automatic Floor Cleaner from Evolution Robotics is designed exclusively for sweeping and mopping hard surface floors for you. Using dry and pre-moistened cleaning cloths, Mint picks up the dust, dirt and pet hair that constantly accumulate on floors. Mint's compact design gets into tight spaces, under furniture and into other areas that are hard to reach with traditional mops and sweepers.

Evolution Robotics Mint
Guided by the NorthStar Navigation System cube, Mint tracks
where it cleans so it doesn't miss a spot (see larger image).


Evolution Robotics Mint
The easy-to-use controls (see larger image).

Guided by the NorthStar Navigation System, Mint methodically cleans open areas by moving back and forth in straight lines, working around furniture and rugs, and cleaning along baseboards.

Mint is easy to use. Simply attach your cleaning cloth of choice, choose sweep or mop and let Mint clean for you. Since Mint is not a vacuum, there are no bins to empty or filters to replace. So you can enjoy hassle-free clean floors every day.

Intelligent Navigation

The NorthStar Navigation System works like an indoor GPS that helps Mint keep track of where it has been and where it needs to go. Specifically, the NorthStar Cube projects a signal that Mint uses to determine its location. Then as Mint starts cleaning, it builds a map of the area as it goes, marking walls, obstacles and drop offs as it encounters them. After Mint finishes cleaning open areas and around obstacles, it performs a final edge cleaning along walls and furniture and then returns to where it started so you know right where to find it.

Evolution Robotics Mint dry microfiber cloth
The dry (above) and wet (below) microfiber cleaning cloths
(see larger image).


Evolution Robotics Mint wet microfiber cloth

Mint can map and clean up to 800 square feet either in a large open space or by discovering adjacent rooms. In mop mode, the cleaning area is restricted to 250 square feet to optimize cleaning while the cleaning cloth is wet.

Sweeps & Mops

Mint's dual modes let you easily maintain all your hard surface floors with one device. In Sweep mode, Mint uses a dry sweeping cloth to pick up dust bunnies, pet hair and grit from your floor. In Mop mode, Mint cleans with a pre-moistened cleaning cloth and a special back-and-forth mopping motion to pick up deeper dirt and grime. All it takes to switch modes is a fresh cleaning cloth and a press of a button.

Cleaning Cloths

Mint works with commonly available disposable cleaning cloths or with re-usable microfiber cloths. Mint's specially designed microfiber cloths can be re-washed and re-used hundreds of times. Different cloths have been developed to optimize both sweeping and mopping. Flat white microfiber cloths are ideal for attracting dust and dirt while dry sweeping. Textured grey cloths hold water and help loosen and grab deeper grime when mopping. Mint comes with a starter pack of 1 mopping and 2 sweeping cloths.

What's in the Box

Mint Automatic Floor Cleaner, NorthStar Navigation Cube with 2 C batteries, 2 dry sweeping microfiber cloths, 1 wet mopping microfiber cloth, power adapter, quick start guide, user manual. Backed by a 1 year warranty.

Care Instructions

To keep your cloths in good shape for hundreds of hours of cleaning, please follow these laundering recommendations:
  • Machine wash warm.
  • Tumble dry low or air dry.
  • Do not use fabric softener or bleach as these can degrade the cloth fibers over time.

Wet cleaning with microfibers is safe for sealed floor surfaces including tile, vinyl, laminate and sealed hardwood. Disposable pre-moistened cloths are usually safe for the same floor types, but always check the package to make sure they are safe for your floor type.

Important Information

PLease see enclosed user manual for complete Mint usage
Cloth Care Instructions:
To keep your cloths in good shape for hundreds of hours of cleaning, please follow these laundering recommendations:
Machine wash warm
Tumble dry low or air dry.
Do not use fabric softener or bleach as these can degrade the cloth fibers over time.
Wet cleaning with microfibers is safe for sealed floor surfaces including tile, vinyl, laminate and sealed hardwood. Disposable pre-moistened cloths

Customer Questions & Answers

Customer Reviews

Very little work to keep floors really clean and good looking.
Linas G. Vytuvis
It sometimes gets stuck under our china cabinet, but does really well under our kitchen and dining room tables!
Carol Ray
One feature that you may like...Mint is capable of using the Swiffer® disposable dry & wet cleaning cloths.

Most Helpful Customer Reviews

1,131 of 1,161 people found the following review helpful By Ryan Mckenney on September 9, 2010
I must say, I'm impressed with the mapping system on this little guy. I have a very large (20'X20') open living room/kitchen area giving plenty of obstacles to confuse it. There's a staircase (which it deftly avoids), an island, a kitchen table with chairs, a couch and a number of tables for it to go under, an area rug and a piece of curved beveled glass on the floor that serves as a stand for a fireplace (which it surprisingly does not ride up on). Also, the room is overall "U" shaped with several entryways. This is the only robotic cleaner that has been able to figure this room out in its entirety. Other things to note is the room has a large fan and high, sloped ceilings and it can still find it's way.

My Roomba did terribly. It would get stuck in one section, the Neato XV was OK but would miss some parts. This thing does a great job of freshening up the floor and getting at just about everything due to it's small size!

One thing I did not know is the Mint comes with wet and dry reusable cloths for cleaning. They are great! It does pick up a lot of stuff, even if your floors look clean it's going to find something!

Wet pads are very good and stay damp for a longer amount time than I would have imagined. The floor is drier behind the mint than if I were mopping the floor myself!

I have found some things that confuse it. It doesn't like heater vents too much, especially larger ones (like intake vents) because it thinks it is falling off of a ledge. It will eventually figure it out though. It will get stuck on vertical blinds, so you might want to block them with something and it might get stuck if it drives into an area that is very tight and it decides it can't back out.
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1,749 of 1,830 people found the following review helpful By dusthater on October 7, 2010
The short version, for those reading many reviews quickly is this; the Mint has many advantages over the Roomba on a feature for feature basis. But at the end of the day, the Roomba is the better product and picked up a LOT more pet hair.

Here's the longer version with the gory details:

Both of these are great innovations. True, the Mint is far quieter, cheaper and cooler looking than the Roomba. It is also easier/cheaper to maintain. But the Roomba gets more dust off the floor, despite the fact that the Mint can get under places Roomba can not, and Roomba returns to its base for a re-charge on it's own, as needed. The Mint just dies in place.

The guy on here who's review said that he sent his Roomba on a mission and then sent the Mint after it to discover dirt the Roomba missed, would have had the same result if he performed the experiment in reverse. I know b/c I did just that. these two devices clean differently, so any comparison is useless on that level.


The high-tech navigation the Mint boasts is a couple of generations away from being the "intelligent" method it advertises. The Mint wanders outside the perimeter of the room but can not clean a large area because the cleaning cloth gets too dirty, too quickly, You can not pause its program to change the cleaning cloth. When you do, the robot "forgets" where it left off and begins to clean the same space over again after you re-engage it. The Mint also runs out charge in about 2-3 hours and requires about 7-10 hours to recharge.

The Roomba, with its "virtual wall" and bump-and-learn program is a "dumber" but ultimately better method of confining the machine to a particular space and therefore maximizing its efficiency on a single charge.
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675 of 733 people found the following review helpful By Careful Reviewer on September 21, 2010
First: notice the 5-star rating that I have given this.

I agree with all of the 5-star reviewers: this product is worth the price (have had it about 6 weeks now). I have used it on vinyl (Congoleum/linoleum) floors, tile floors and wooden floors. It works well on all of them. Time will tell more.

However, rather than repeat what others have said, I will describe some aspects that might disappoint you when/if you buy it, but these do not outweigh the benefits.

- This does NOT do a deep clean. That takes elbow grease and this, naturally, is not heavy enough to scrub that well (you wouldn't want it to be that heavy). You will have to do a deep clean first. The Mint will then maintain that clean floor. I use it about once a week.

- The designers did a generally good job, except for the week when they all took vacation at once and let the janitor decide where to put the charging port. Believe or not, these idiots put the port in a spot on the underside of the unit. You have to turn the thing upside down to plug the charger in. An automatic charging-base system would have been a much better approach than having to plug it in manually every time.

- Sweeping: does an ok job, but it would be difficult for such a device to get everything. It is more useful when cleaning (washing).

- Washing (as opposed to sweeping) battery life is about 2 hours and it takes about 45 minutes to do a 12 x 20 area having several obstacles (island, tables, multiple angle walls, etc.). This allows me to wash with a mild detergent and then do a second pass to rinse (see below).

- While the Mint senses an overhang and will not fall off, it does often stop moving and generates an error message. It's as though it gets confused and just gives up.
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Product Images from Customers

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