# 3i S10 Ultra

- Page: https://bestatbest.com/us/robot-vacuums/3i-s10-ultra
- Not sold at any store we monitor today, so not in our ranking.
- No store we follow has this model in stock today.

## Our score

- Score 4.7 out of 10
- Lab tests, 60% of the score: 5.1, measured by Vacuum Wars.
- Owners’ ratings, 25%: 1.8, from 124 ratings averaging 2.5 stars at Amazon.
- Features, 15%: 8.2, 73 of the 89 points for the facts the maker states.
- Deep clean on carpet: 3.2
- Pet hair: 7.2
- Mopping: 4.1
- Obstacle avoidance: 4.9
- Navigation: 5.6
- Vacuum Wars: the test (read on September 29, 2026), https://youtu.be/RVFeBt0MMbs
- Price does not count, so a discount never lifts a model. Only robots a lab has tested are ranked.

## The testers’ picks

- Vacuum Wars: Position 109 of 151 (list as of September 26, 2026), https://vacuumwars.com/vacuum-wars-best-robot-vacuums/

## Frequently asked questions about the 3i S10 Ultra

**Does the 3i S10 Ultra empty its own dust bin?**

Yes. The station empties the robot’s dust bin after every run. The 2.5 l dust bag in the station lasts up to 60 days, the maker says.

**Does the 3i S10 Ultra wash and dry its own mop?**

Yes. The station washes the mop itself. It then dries the mop with warm air.

**Does the 3i S10 Ultra work with Alexa, Google Home or Siri?**

It works with Alexa and Google Assistant.

**How high a threshold can the 3i S10 Ultra climb?**

Thresholds up to 1 in (25 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.

**Does the 3i S10 Ultra fit under low furniture?**

The robot is 4.4 in (11.2 cm) tall, so it fits under furniture with at least 4.5 in of clearance.

**Is the 3i S10 Ultra suitable for pet hair?**

Yes, the maker says. The brush guides hair to the side instead of winding it around the roller.


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