Yeedi S20 Infinity
A strong-cleaning bagless roller-mop robot from ECOVACS’ sister brand; good results in testing, but yeedi publishes few specs and sells it only on Amazon.
Amazon $799.99$799.99
The Yeedi S20 Infinity is the better robot vacuum overall, rated 4.3 to 4.0. The iRobot Roomba Max 775 Combo wins on navigation.
iRobot Roomba Max 775 Combo
For homes with mixed floors that want a roller mop with a hot-wash, heat-dry dock from iRobot; the Plus 678 has similar features for less.
Amazon $799.99$799.99
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the iRobot Roomba Max 775 Combo for navigation (LiDAR + camera vs LiDAR + 3D light).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Yeedi S20 Infinity | iRobot Roomba Max 775 Combo |
|---|---|---|
| Overall rating | 4.3/5 | 4.0/5 |
| Cleaning 30% | 86 measured 89% of sand from carpet, 100% of pet hair, no hair tangled | 48 not yet tested; estimated from 3 tested iRobot robots and the median of the 70 tested robots |
| Value 25% | 50 $800 | 50 $800 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent |
| Navigation 15% | 85 LiDAR + 3D light | 100 LiDAR + camera |
| Mopping 10% | 85 Roller, extends to edges | 85 Roller, extends to edges |
Independent tests
Yeedi S20 Infinity
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 100% | 0 | 1,335 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
iRobot Roomba Max 775 Combo
No independent test published yet.
Specifications
| Yeedi S20 Infinity | iRobot Roomba Max 775 Combo | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 19,500 Pa | 30,000 Pa |
| Main brush | - | dual rubber brushes |
| Extending side brush | - | Yes |
| Mopping | ||
| Mop | Roller, extends to edges | Roller, extends to edges |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + camera |
| Obstacle avoidance | AIVI 3D 3.0 Omni-Approach | PrecisionVision AI camera object recognition |
| Climbs thresholds | 24 mm | - |
| Voice assistants | Alexa, Google Assistant | - |
| Build | ||
| Height | - | 4.1 in (104 mm) |
| Battery | - | 6,000 mAh |
| Weight | - | 12.8 lb (5.8 kg) |
| Warranty | 1 year | 1 year |
| Released | 2025-09 | 2026-07 |