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Onson
Onson 2-in-1 Robot Vacuum and Mop Combo
Home · Walmart

Floors handled while you're out

Onson 2-in-1 Robot Vacuum and Mop Combo

A 2-in-1 robot vacuum and mop combo for anyone who'd rather not sweep.

Deal score 6.8 · Great deal

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Why it's a great deal

  • ZDNET says the Onson 2-in-1 vacuums and mops to help clean pet hair and dirt ZDNET
  • CNET's Max McHone says the Onson BR151 vacuums and mops with a 120-minute runtime CNET
  • ZDNET says the companion app lets you set schedules and use Alexa and Hey Google voice controls ZDNET
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Every store we checked

  • mercari.comNew

    In stock

    $55.00Observed at 7:26 AM
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  • WalmartNew

    In stockSold by ONSON Official

    $89.79Observed at 7:26 AM
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  • Martexplore.comNew

    In stock

    $124.99Observed at 7:26 AM
    Visit store
  • eBayNew

    In stock

    $160.00Observed at 7:26 AM
    Visit store
Price history and every store's price →

From Walmart

  • 2-in-1 robot vacuum and mop combo with a dustbin and 230ML water tank for simultaneous cleaning
  • Zig-zag cleaning route for corner coverage instead of random patterns
  • 8000 PA suction with two adjustable levels; brushless inlet prevents hair tangles
  • Spot, Edge and Manual cleaning modes
  • Anti-drop sensors prevent stair falls; infrared sensors avoid collisions
  • 2.4G Wi-Fi app control for remote management and scheduling
Returns
Free holiday returns until Jan 31
Shipping
Free shipping; arrives by Tue, Nov 3

Specs

Surface Type
Carpet
Wet / Dry
Wet/Dry (Mop Combo)
Suction Power
1400PA
Cleaning Width
1280 in
Water Tank Capacity
230 ML
HEPA Certified
HEPA
Filtration Type
HEPA
Power Source
Cordless
Voltage
14.4 V
Battery Life
120 min

About the Onson 2-in-1 Robot Vacuum and Mop Combo

The Onson 2-in-1 Robot Vacuum and Mop Combo is a budget robot that vacuums and mops at the same time, with a 230 ml water tank, a HEPA filter and app control through Alexa and Google Assistant. It runs a zig-zag route with spot and edge modes, and anti-drop and infrared sensors keep it off stairs and away from obstacles. Its suction is listed as 1400PA in the specs but 8000PA in the store highlights, so treat the real figure as unclear. At $55.00 at mercari.com as of November 3, 2026, it sits at the only price seen since October 31, 2026, so there is no cheaper recent low to wait for.

Best forPet owners dealing with hair on hard floors and low-pile carpetSmall apartments and single roomsShoppers who want vacuum and mop in one cheap unitHands-off scheduling through the app or a voice assistant
Pros
  • Vacuums and mops in one pass with a 230 ml tank
  • HEPA filtration traps fine dust
  • Zig-zag route covers edges better than random bouncing
  • Anti-drop and infrared sensors protect stairs and furniture
  • Alexa and Google Assistant support plus app scheduling

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  • Brushless inlet resists hair tangles
    • Cons
    • 1400PA suction is weak for deep carpet
    • 230 ml tank is small for larger floors
    • No self-emptying or self-cleaning mop base
    • 5 in tall body may not fit under low furniture
    • 3.3 out of 5 from 2,100 ratings signals mixed owner experience

    What reviewers say

    Owner feedback on this class of budget robot is mixed, and the 3.3 out of 5 average from 2,100 ratings reflects that. Buyers tend to like the low price and the vacuum-and-mop combo, while complaints center on suction and reliability.

    Pros
    • Low price for a 2-in-1 vacuum and mop
    • Easy app setup and scheduling
    • Handles pet hair on hard floors
    Cons
    • Weak suction on carpet
    • Small water tank needs frequent refills
    • Durability and sensor issues over time

    Questions and answers

    Is the Onson 2-in-1 worth it?
    At $55.00 at mercari.com as of November 3, 2026, it is a cheap way to automate light cleaning on hard floors and low-pile carpet. Do not expect deep carpet cleaning at this price.
    What is the real suction power?
    The specs list 1400PA, while the store highlights claim 8000PA. The lower figure is more consistent with a budget robot, so plan for light-duty pickup.
    How long does the battery last?
    The 2500mAh lithium battery is rated for up to 120 minutes and charges in about 1 hour. Real runtime drops with suction on high and with mopping.
    Does it work with Alexa and Google Assistant?
    Yes. It connects over 2.4G Wi-Fi and supports both Alexa and Google Assistant for starting, stopping and scheduling.
    Will it handle pet hair?
    It is marketed for pet hair, and the brushless inlet helps stop hair tangling. It works best on hard floors and low-pile carpet rather than thick carpet.
    When is it cheapest?
    The lowest price seen since October 31, 2026 was $55.00 on October 31, 2026, the same as the current $55.00 at mercari.com. There is no cheaper recent low to wait for.
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