🧹
Robot Vacuum & Mop
~$200

Lefant

Lefant N3

The N3 is Lefant's step up from bump-navigation bots like the M210 — real LiDAR-plus-dToF mapping instead of random bouncing, and a gimmick that's actually useful: 'sonic mopping' that vibrates the mop pad 12,000 times a minute like an electric toothbrush to work at dried-on stains, rather than just dragging a damp cloth. Ultrasonic carpet detection boosts suction automatically over rugs and switches the mop's cleaning direction so it doesn't drive wet pads onto carpet. Set against name-brand LiDAR robots at this price, the corners cut are real: no self-empty dock (you get a basic charging base), a small 160ml onboard water tank that needs refilling often on anything but a small home, and no auto mop lifting — the mop pad stays attached and just changes direction near carpet rather than physically lifting clear of it. Lefant's own listing doesn't confirm multi-floor map storage, so treat single-floor mapping as the safer assumption. For a standalone LiDAR mapping robot with mopping under $250, it's a reasonable spec sheet from a brand with a real, if thin, US retail presence.

Approx. price
~$200
Suction
4000 Pa
Navigation
LiDAR
Best For
Small-to-medium hard-floor homes that want real mapping without a dock
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Specifications

Auto Mop Washing
No
Obstacle Avoidance
Yes
Carpet Detection
Yes
Auto Mop Lifting
No
Multi-Floor Mapping
No
Type
Robot Vacuum & Mop
App Control
Yes
12.5 x 12.5 x 3.5 in
1 year
Model
N3

Highlights

True LiDAR + dToF mapping, not bump navigationSonic mopping vibrates at 12,000 strokes/minUltrasonic carpet detection auto-boosts suction

Pros

  • True LiDAR + dToF navigation with no-go zones and spot cleaning via the app
  • Sonic mopping technology tackles dried stains better than a passive drag mop
  • Ultrasonic carpet detection auto-boosts suction and avoids over-wetting rugs
  • 4 adjustable suction levels up to 4000 Pa
  • Works in full darkness since it doesn't rely on a camera
  • Alexa/Google Assistant and app scheduling included

Cons

  • No self-empty dock — just a basic charging base, so the 450ml bin needs manual emptying
  • Small 160ml water tank needs frequent refills on larger homes
  • No physical mop lift — the pad changes direction near carpet rather than lifting off it
  • Multi-floor map storage isn't confirmed in Lefant's own listing
  • No published HEPA/filtration rating or noise level

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