Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.

Browse every Black Friday offer we could findBrowse every Black Friday offer we could find

View The Sift
Missed This Deal? Get alerts when similar deals are posted.
expired
LolaBunny21 | Staff 40.7K Views
Jul 19, 2026 12:54 AM

Lefant M3 MAX 20000Pa Robot Vacuum & Mop w/ Self-Emptying & Cleaning Dock

$150

$440

65% off
+ Free S&Hat Amazon
Visit Amazon

Why are you downvoting this deal?

Good Deal?
58Comments
Save
Share
Deal Details
LefantHome via Amazon has Lefant M3 MAX Robot Vacuum & Mop w/ 20000Pa Suction, 90-Day Self-Emptying & Hot Water Self-Cleaning Dock on sale for $299.99 - 50% off when you apply promo code 4GEI5UWW at checkout = $149.99. Shipping is free.

Thanks to Deal Hunter LolaBunny21 for sharing this deal.

Note: You must be logged in to apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.

Product Details:
  • 20,000Pa Super Suction: delivers hyper-powered 20,000Pa suction to lift embedded dirt, pet hair, and stubborn debris from carpets, rugs, hardwoods. Optimized airflow ensures thorough cleaning in tight corners and under furniture for a spotless home
  • 90 Days Self-Emptying: up to 90 days of hands-free cleaning with 3.2L dust bag. The Strong suction vacuum base station efficiently empties the collected dirt and debris into the dust bag, ensuring uninterrupted cleaning sessions
  • All-in-One Smart Dock with Cool Air Drying - The Robot Vacuum Mop with 45° hot water to deeply dissolve grease and grime, paired with gentle cool air drying to prevent mop deformation from high heat. The water tank for uninterrupted mopping across 3,552 sqft (330 m²).
  • Long-Lasting 5,200mAh Battery: up to 210 minutes at whisper-quiet levels that won't disturb sleep, with 30% faster charging.
  • Support Dual-Band WiFi (2.4GHz/5GHz): auto-switching ensures stable connectivity for uninterrupted cleaning. The 2.4GHz band provides whole-home coverage, while the 5GHz band enables high-speed control.
  • LiDAR Navigation & Multi-Floor Mapping: advanced 360° LiDAR navigation, Lefant M3 Max quickly scans and accurately maps your home for efficient cleaning, automatically creating multi-level maps, and intelligently planning cleaning routes to minimize unnecessary repetition or missed spots.
  • Slim Design & Freemove Tech Obstacle Avoidance: just 11" wide, the robot vacuum cleaner glides effortlessly under furniture while its compact base tucks neatly under cabinets, featuring advanced Freemove Tech 3.0 that precisely dodges furniture, cords, toys, and furniture legs while automatically avoiding stairs and tight spaces.

Editor's Notes

Written by ValPal2011 | Staff
  • About this deal:
    • Our research indicates that this deal is $150 less (50% savings) than the next best available price from a reputable merchant with prices starting from $299.99 at the time of this post.
  • About the store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
LefantHome via Amazon has Lefant M3 MAX Robot Vacuum & Mop w/ 20000Pa Suction, 90-Day Self-Emptying & Hot Water Self-Cleaning Dock on sale for $299.99 - 50% off when you apply promo code 4GEI5UWW at checkout = $149.99. Shipping is free.

Thanks to Deal Hunter LolaBunny21 for sharing this deal.

Note: You must be logged in to apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.

Product Details:
  • 20,000Pa Super Suction: delivers hyper-powered 20,000Pa suction to lift embedded dirt, pet hair, and stubborn debris from carpets, rugs, hardwoods. Optimized airflow ensures thorough cleaning in tight corners and under furniture for a spotless home
  • 90 Days Self-Emptying: up to 90 days of hands-free cleaning with 3.2L dust bag. The Strong suction vacuum base station efficiently empties the collected dirt and debris into the dust bag, ensuring uninterrupted cleaning sessions
  • All-in-One Smart Dock with Cool Air Drying - The Robot Vacuum Mop with 45° hot water to deeply dissolve grease and grime, paired with gentle cool air drying to prevent mop deformation from high heat. The water tank for uninterrupted mopping across 3,552 sqft (330 m²).
  • Long-Lasting 5,200mAh Battery: up to 210 minutes at whisper-quiet levels that won't disturb sleep, with 30% faster charging.
  • Support Dual-Band WiFi (2.4GHz/5GHz): auto-switching ensures stable connectivity for uninterrupted cleaning. The 2.4GHz band provides whole-home coverage, while the 5GHz band enables high-speed control.
  • LiDAR Navigation & Multi-Floor Mapping: advanced 360° LiDAR navigation, Lefant M3 Max quickly scans and accurately maps your home for efficient cleaning, automatically creating multi-level maps, and intelligently planning cleaning routes to minimize unnecessary repetition or missed spots.
  • Slim Design & Freemove Tech Obstacle Avoidance: just 11" wide, the robot vacuum cleaner glides effortlessly under furniture while its compact base tucks neatly under cabinets, featuring advanced Freemove Tech 3.0 that precisely dodges furniture, cords, toys, and furniture legs while automatically avoiding stairs and tight spaces.

Editor's Notes

Written by ValPal2011 | Staff
  • About this deal:
    • Our research indicates that this deal is $150 less (50% savings) than the next best available price from a reputable merchant with prices starting from $299.99 at the time of this post.
  • About the store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Community Voting

Deal Score
+144
Good Deal
Bad Deal

Why are you downvoting this deal?

Top Comments

Community Reviews

The Lefant M3 Max is a budget robot vacuum and mop that stands out for its self-emptying dock, strong suction, and surprisingly capable cleaning for the price. The app offers customizable scheduling, and the mop can return to base to rinse and rewet so it is not dragging the same dirty pad around. It runs quietly and can handle everyday dust and pet messes well, though carpet and rug detection can miss spots and the robot may stop on small obstacles. The biggest drawbacks are software and mopping limits, including weak multi-floor handling, no onboard water tank, and pads that can dry out quickly. It is a practical cleaner if the dock setup fits your home.

Common Questions (6)

  • Yes, the promo code was successfully used by multiple shoppers, and the deal was reported back in stock at $299 with a $150 coupon. That puts the final price at about $149.99 when the code applies.

  • Yes. The mop is wetted before mopping, and the app can be set to send the robot back to the base at intervals to rinse the mop and resume cleaning. That helps avoid dragging the same dirty pad across the floor, though the first pass may be only lightly wet until the pump primes.

  • It can scan another floor, but the new map reportedly won't save unless the dock is moved to that floor as well. That makes multi-floor use less convenient if you want to keep the base on one level and clean others separately.

  • Yes. The robot itself does not have a water tank; the base holds the water and the robot returns there to wash the mop and rewet it. That design is normal for many robot vacuums, but it means the dock is part of the cleaning workflow.

  • At $150, it is positioned as a self-emptying combo near the price of a basic name-brand robot vacuum, which makes it a strong value if you want mopping and self-emptying. It still may not replace regular vacuuming, but it can reduce how often you need to do it manually.

  • Carpet and rug detection can be inconsistent, and it may sometimes mop the whole carpet. If you have mixed flooring, that is the main behavior to watch for during setup and early runs.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

58 Comments

Sign up for a Slickdeals account to remove this ad.

Jul 22, 2026 4:46 AM
55 Comments
Joined Dec 2007
epsongJul 22, 2026 4:46 AM
55 Comments
Tempting just to try it out
Jul 22, 2026 9:01 AM
118 Comments
Joined Mar 2011
fahadk00lJul 22, 2026 9:01 AM
118 Comments
Price went up
Jul 22, 2026 9:27 AM
259 Comments
Joined Aug 2022
CrimsonIdea4025Jul 22, 2026 9:27 AM
259 Comments
Quote from The_Sandster View quoted comment :
I don't think those reviews are false. I think what they're trying to convey is that THEIR vacs didn't wet the mop. In other words, defective.
I don't think they gave it a chance to prime the pump to be able to wet the mop since it's new and it's still dry, I just used mine and the first mop wet/rinse there was barely water on the pads (I have it for every 5 minutes to rinse/wet the mop) after the second pass the mop was mopping better since it had more water and after that it was mopping good no issues.
Jul 22, 2026 12:11 PM
47 Comments
Joined Jun 2015
JoeyK6211Jul 22, 2026 12:11 PM
47 Comments
Quote from kkm23 View quoted comment :
Almost pulled the trigger and then I saw this Reddit thread on it. Going to pass on this deal since I have kids and baby gates. https://www.reddit.com/r/RobotVac...2ZpOkbQlNz
At $150, you're getting a self emptying combo near the price of a name brand dumb robo vac. Yes, the eufy I have is better with better suction. It was more than double the price, too. Very few of these vacs actually replace your regular vacuuming totally, they just help keep things tidy in between and extend the time between regular cleaning.

With a kid and a dog, living in the city where we walk in off the street, it keeps our vacuum chore to once a week instead of 2-3x.
Jul 22, 2026 2:12 PM
106 Comments
Joined Oct 2011
wakebrdr549Jul 22, 2026 2:12 PM
106 Comments
The code doesn't work for me. I tried in chrome and in the app
Jul 22, 2026 2:36 PM
103 Comments
Joined Jan 2026
jethrojo25Jul 22, 2026 2:36 PM
103 Comments
I just set mine up yesterday and it seems to be a great deal
Jul 22, 2026 3:47 PM
129 Comments
Joined Jul 2020
CalmBird519Jul 22, 2026 3:47 PM
129 Comments
Tried mine yesterday and it did a better job cleaning than my Roborock QRevo

Sign up for a Slickdeals account to remove this ad.

Jul 22, 2026 6:34 PM
13 Comments
Joined Nov 2012
jhkaJul 22, 2026 6:34 PM
13 Comments
Looks like deal is dead or codes are not working. If anyone has a working code, please share
Jul 24, 2026 3:32 PM
24 Comments
Joined Oct 2009
totsyboyJul 24, 2026 3:32 PM
24 Comments
I was able to order this with the coupon with a 2-day delivery but just got a notice that the delivery is delayed and asking if I want to cancel. Can't even link to that item on the Amazon page anymore. I doubt I'll ever see it.
Jul 28, 2026 1:13 PM
20 Comments
Joined Nov 2017
JaymsJul 28, 2026 1:13 PM
20 Comments
Quote from Cleofus View quoted comment :
Thanks - it would be lowkey cool if you could let us know first impressions after delivery Smilie
It took me a while to finally get it out, but out of the box it seems to be well-made. Easy maintenance and easy to use. Very customizable scheduling in the app. The canister on the vacuum itself is tiny compared to my dead Wyze vaccuum, I imagine because it self-empties frequently. I've noticed the roller is more sensitive than my older dumber vacuum. It's super quiet, to the point where I don't know if it's even running, but it's actually picking up a lot. I haven't gotten it to run for more than an hour at a time because it stops when it hits a pencil or a sock, where my old vac would've plowed through and kept on truckin'. It's hard to keep my floor picked up with all my kids and pets, but if I can do that, this vac seems like a great way to up our cleanliness game.
Jul 28, 2026 6:47 PM
392 Comments
Joined Mar 2005
CleofusJul 28, 2026 6:47 PM
392 Comments
Quote from Jayms View quoted comment :
It took me a while to finally get it out, but out of the box it seems to be well-made. Easy maintenance and easy to use. Very customizable scheduling in the app. The canister on the vacuum itself is tiny compared to my dead Wyze vaccuum, I imagine because it self-empties frequently. I've noticed the roller is more sensitive than my older dumber vacuum. It's super quiet, to the point where I don't know if it's even running, but it's actually picking up a lot. I haven't gotten it to run for more than an hour at a time because it stops when it hits a pencil or a sock, where my old vac would've plowed through and kept on truckin'. It's hard to keep my floor picked up with all my kids and pets, but if I can do that, this vac seems like a great way to up our cleanliness game.
You hit the nail on the head with keeping the floor picked up! Number 1 problem in our house.
Sounds like it's good - especially for the price. Thank you for taking time to review for the SD community!
Pro
Jul 29, 2026 12:39 AM
201 Comments
Joined Nov 2017
whisky_x
Pro
Jul 29, 2026 12:39 AM
201 Comments
Good hardware, but the software needs a lot of improvement
I had high hopes for the Lefant M3 because, on paper, it offers a lot of features for the price. The robot cleans reasonably well, and the self-empty/self-washing station is a nice addition. However, after using it for a while, I found that the software experience is disappointing and significantly limits the product.
𝐌𝐮𝐥𝐭𝐢-𝐟𝐥𝐨𝐨𝐫 𝐌𝐚𝐩𝐩𝐢𝐧𝐠 𝐃𝐨𝐞𝐬𝐧'𝐭 𝐖𝐨𝐫𝐤 𝐚𝐬 𝐄𝐱𝐩𝐞𝐜𝐭𝐞𝐝
One of the main reasons I bought this robot was its advertised multi-floor mapping capability.
My charging dock is permanently installed on the first floor, so I wanted to create a map for the second floor.
Here is exactly what I did:
1. Started the robot from the charging dock.
2. Selected Create New Map in the Lefant App.
3. Carried the robot to the second floor.
4. Started the mapping process.
5. The robot successfully scanned the entire second floor.
After finishing, the robot tried to return to the charging dock. Of course, the dock was still downstairs, so it couldn't find it. I then carried the robot back to the charging dock.
Unfortunately, the new map was never saved. I then asked Lefant support and they said I have to bring the dock to every floor if I want to create a new map.
If this is the intended behavior, I honestly don't understand the design. A robot advertised with multi-floor mapping should not require users to move the charging dock to every floor just to create a new map. That defeats the whole purpose of having multi-floor support.
𝗠𝗼𝗽 𝗣𝗮𝗱𝘀 𝗗𝗿𝘆 𝗢𝘂𝘁 𝗧𝗼𝗼 𝗤𝘂𝗶𝗰𝗸𝗹𝘆
Another issue is the mopping performance.
The app only lets you choose the Wash Mop Interval (for example every 5, 10, or 15 minutes). There is no option to adjust the water level.
I selected a 10-minute wash interval, but after about 6–7 minutes the mop pads were already almost completely dry. That means the robot spends the last few minutes basically wiping the floor with nearly dry pads.
The only solution is to reduce the wash interval to 5 minutes, but then the robot spends much more time traveling back to the dock instead of cleaning.
A water level adjustment would have solved this problem.
𝐓𝐡𝐞 𝐀𝐩𝐩 𝐅𝐞𝐞𝐥𝐬 𝐓𝐨𝐨 𝐁𝐚𝐬𝐢𝐜
Compared with other robot vacuum brands, the Lefant App lacks many useful settings and customization options such as Vac then Mop mode. The hardware seems capable, but the software doesn't allow users to get the most out of it.

𝐅𝐢𝐧𝐚𝐥 𝐓𝐡𝐨𝐮𝐠𝐡𝐭𝐬
I don't think the Lefant M3 is a bad robot.
Pros:
- Good value for the price.
- Self-emptying and self-washing dock.
- Good vacuuming performance.
Cons:
- Multi-floor mapping does not work as expected.
- Mop pads dry out too quickly and no water flow adjustment.
- The app and firmware need significant improvement.

I hope Lefant continues improving the firmware because most of my complaints appear to be software-related rather than hardware limitations. If the software becomes more polished, this robot could be much more competitive.
Last edited by whisky_x July 28, 2026 at 06:44 PM.
1
Jul 31, 2026 6:38 PM
261 Comments
Joined Dec 2013
modemrajJul 31, 2026 6:38 PM
261 Comments
Amazon lost the package during delivery and the listing is no longer available to order

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!