iRobot Roomba 105 Combo vs Lefant M310 Ultra
Quick take: The Lefant M310 Ultra costs $10 less.
Which one to buy
Clutter on your floor is the tiebreaker between these two budget robots, though the Lefant M310 Ultra is now discontinued. Both are LiDAR vacuum-and-mop robots with multi-floor maps, no self-empty dock, and a mop that steers around carpet instead of lifting. The Lefant M310 Ultra adds PSD obstacle avoidance that works in the dark, publishes a 6000 Pa suction figure and a 170-minute runtime, and stands about 3 inches tall. iRobot publishes no suction or runtime figures for the Roomba 105 Combo, and it has no obstacle avoidance.
The Roomba's owners make its case. They like the tidy row-by-row coverage, report impressive dog-hair pickup, call the app simple and reliable, and value iRobot's US parts and warranty network. They also say the mop just drags a damp pad and won't touch dried spills, carpet avoidance occasionally leaves a damp rug corner, cables and socks get eaten without a pre-tidy, and some units fumble docking. iRobot's finances are a background worry for long-term app support.
The Lefant publishes no bin or tank sizes, and it has little ownership history to lean on. If your floors tend to have cords, toys or socks on them, its obstacle sensors make it the better pick, if you can find leftover stock. If you'll tidy first and want established support, buy the Roomba.
iRobot Roomba 105 Combo
Go this way if you'll tidy the floor before each run and want iRobot's simple app and US parts and warranty network.
Lefant M310 Ultra
Choose it if cords, socks or pet toys tend to end up on your floor, since it has obstacle avoidance the Roomba lacks; it is now discontinued, so look for leftover stock.
| Spec | iRobot Roomba 105 Combo | Lefant M310 Ultra |
|---|---|---|
| Price | ~$180 | ~$170 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | Not disclosed | 6000 Pa |
| Battery | — | 170 min |
| Navigation | LiDAR | LiDAR |
| Filtration | — | — |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | — | — |
| Dustbin | — | — |
| Water tank | — | — |
| Self-empty dock | No | No |
| Auto mop washing | No | No |
| Hot water washing | No | No |
| Obstacle avoidance | No | Yes |
| Carpet detection | Yes | Yes |
| Auto mop lifting | No | No |
| Multi-floor mapping | Yes | Yes |
| App control | Yes | Yes |
| Dimensions | 13.23 x 13.19 x 4.09 in | — |
| Weight | 6.27 lbs | — |
| Warranty | 1 year | 1 year |
Pros & cons
iRobot Roomba 105 Combo
- ✓LiDAR navigation and multi-floor mapping at a bump-nav price
- ✓Strong dry pickup for the money — a huge leap over old 600-series Roombas
- ✓Automatically refuses to mop carpet when the pad is on
- ✓Simple, stable app without the gimmick overload of Chinese rivals
- ✓Light 6.27 lb body and low 4.09 in profile fits under most furniture
- ✓Reusable microfiber pads instead of consumable disposables
- ✗Mopping is a damp-pad wipe, not scrubbing — skip it if mopping matters
- ✗No obstacle avoidance — pre-clean pickup of cables and socks is on you
- ✗iRobot publishes no runtime, suction, or bin specs whatsoever
- ✗No self-empty dock at this price tier
- ✗iRobot's ongoing financial troubles cloud long-term support
Lefant M310 Ultra
- ✓ToF LiDAR navigation with confirmed multi-layer map surveying
- ✓190° PSD obstacle avoidance claims millimeter precision, including in darkness
- ✓6000 Pa suction, stronger than several Lefant siblings
- ✓170-minute runtime covers larger homes without a mid-clean charge
- ✓Four selectable cleaning patterns (plan, random, along-the-wall, fixed-point)
- ✓Ultra-slim 3-inch body clears more furniture than typical LiDAR robots
- ✗No self-empty dock — manual dustbin emptying only
- ✗No dustbin or water tank capacity published
- ✗No weight or full dimensions published
- ✗Carpet handling is avoidance via manual mop-holder removal, not an automatic mechanical lift
- ✗No noise level or HEPA/filtration rating published
iRobot Roomba 105 Combo vs Lefant M310 Ultra: common questions
Does the Lefant M310 Ultra avoid cables better than the Roomba 105 Combo?▾
On paper, yes. The Lefant has 190-degree PSD obstacle sensors rated to work in the dark, while the Roomba 105 Combo has no obstacle avoidance and owners say it eats cables and socks unless the floor is cleared first.
Which one is better for a home with long hair or shedding dogs?▾
Roomba 105 Combo owners with heavy shedders report impressive pickup on hard floors and low-pile carpet. The Lefant lists 6000 Pa suction and boosts to maximum when you remove the mop holder, but owners have yet to report how it handles hair.