Lefant N3 vs Tapo RV20 Max Plus
Quick take: The Tapo RV20 Max Plus has stronger suction (5,300 vs 4,000 Pa).
Which one to buy
At the same $200, the Tapo RV20 Max Plus includes a self-empty dock and the Lefant N3 does not. That alone makes the Tapo the default. Its dock takes a 3L bag rated for about two months, it saves maps for more than one floor, and it is rated at 5300 Pa against the N3's 4000 Pa. It is also slimmer at 3.3 inches, and owners like how far under furniture it reaches.
The catch is reliability. RV20 Max Plus owners describe side brush and sweeper motor failures within 6-12 months, sometimes announced by a squeal that clearing lint from the brush axle may or may not fix. Some report docking trouble, battery faults within two years, and side brush screws so tight that routine replacement is a chore. It also needs about 5 feet of clear space in front of the dock to find its way home, and stalls on lamp bases and thick mats.
The N3's case is mopping. Its sonic pad vibrates 12,000 times a minute to work at dried-on spills, which the Tapo's plain pad doesn't do, and it holds a 450 ml bin. But its 160 ml tank needs frequent refills, and Lefant doesn't confirm multi-floor maps.
Buy the Tapo if you want a self-emptying LiDAR robot at this price and accept that a warranty claim is a real possibility. Pick leftover N3 stock, since it is now discontinued, for a small, single-level home with sticky hard floors, where scrubbing matters more than not emptying a bin.
Lefant N3
Now discontinued, but worth it if you live on one level, mostly have hard floors with dried spills, and don't mind emptying the bin yourself.
Tapo RV20 Max Plus
The one to get if you want a self-empty dock and multi-floor maps for $200 and can live with owner-reported side brush and battery issues.
| Spec | Lefant N3 | Tapo RV20 Max Plus |
|---|---|---|
| Price | ~$200 | ~$200 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 4000 Pa | 5300 Pa |
| Battery | 150 min | 150 min |
| Navigation | LiDAR | LiDAR |
| Filtration | — | H11 HEPA |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | — | — |
| Dustbin | 450 ml | 300 ml |
| Water tank | 160 ml | 300 ml |
| Self-empty dock | No | Yes |
| Auto mop washing | No | No |
| Hot water washing | No | No |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | Yes |
| Auto mop lifting | No | No |
| Multi-floor mapping | No | Yes |
| App control | Yes | Yes |
| Dimensions | 12.5 x 12.5 x 3.5 in | 13 x 13 x 3.3 in |
| Weight | — | — |
| Warranty | 1 year | 1 year |
Pros & cons
Lefant N3
- ✓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
- ✗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
Tapo RV20 Max Plus
- ✓Fast, accurate LiDAR mapping that multiple long-term owners rate above prior Shark/iRobot units
- ✓Ultra-slim 3.3-inch body clears more furniture than typical dock-based robots
- ✓5300 Pa suction with automatic boost on carpet
- ✓Self-empty dock rated for roughly 2 months hands-free with a 3L bag
- ✓H11 HEPA filtration
- ✓Shares the Tapo app with TP-Link's cameras/smart plugs, convenient if already in that ecosystem
- ✓Frequently discounted to around $200 for a self-empty LiDAR robot
- ✗Struggles with slight inclines — lamp bases, fan bases, and thick rubber mats can stall it
- ✗Navigation around irregular, non-linear furniture legs is inconsistent per owner reports
- ✗Needs roughly 5 feet of clear space in front of the dock or it can fail to redock
- ✗No auto mop washing or heated water — mop pad just avoids carpet rather than lifting off it
- ✗At least one owner reports the battery failed around the one-year mark with only a 6-month battery warranty and no replacement battery available
- ✗Some owners report skipped scheduled cleanings
Lefant N3 vs Tapo RV20 Max Plus: common questions
Is the Tapo RV20 Max Plus reliable enough to choose over the Lefant N3?▾
Owners describe side brush motor failures within 6-12 months and some battery faults within two years, so expect a possible warranty claim. Most owners with a good unit are happy with the cleaning, and the dock itself is rarely the problem.
Does the Lefant N3 mop better than the Tapo RV20 Max Plus?▾
On paper, yes. The N3's sonic pad vibrates 12,000 times a minute to loosen dried stains, while the Tapo drags a standard pad. The N3's 160 ml tank is smaller, though, so it needs refilling more often.
How much clearance does the Tapo RV20 Max Plus need around its dock?▾
About 5 feet of clear floor in front of the dock, according to owners, or it can fail to redock. If the only outlet is in a cluttered corner, the dockless N3 avoids that problem entirely.