Yeedi S20 Infinity Ultra
ECOVACS’ FocusJet stain pre-spray and covered roller at a lower price under the yeedi name, for hard-floor homes with rugs who can live with few published specs.
Amazon $799.99$799.99
The Yeedi S20 Infinity Ultra is the better robot vacuum overall, rated 3.9 to 3.5. The Yeedi S20 Infinity Ultra leads on value. The Roborock Saros Z70 wins on mopping. The Yeedi S20 Infinity Ultra costs $199.99 less ($799.99 vs $999.98).
Roborock Saros Z70
#101 in Self-cleaning dockFull review
For early adopters who want a robot that tidies small clutter; buyers who just want clean floors get more for less elsewhere.
Amazon $999.98$999.98
Prices were last checked October 26, 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 Yeedi S20 Infinity Ultra for value ($800 vs $1,000).
- Choose the Roborock Saros Z70 for mopping (Dual spinning pads, leaves its mop at the dock for carpet, extends to edges vs Roller).
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 Ultra | Roborock Saros Z70 |
|---|---|---|
| Overall rating | 3.9/5 | 3.5/5 |
| Cleaning 30% | 75 not yet tested; estimated from 2 tested Yeedi robots and the median of the 70 tested robots | 20 measured 67% of sand from carpet, 83% of pet hair, some hair tangled (0.5) |
| Value 25% | 50 $800 | 36 $1,000 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup |
| Navigation 15% | 50 navigation not published (neutral score used) | 100 LiDAR + camera |
| Mopping 10% | 70 Roller | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges |
Independent tests
Yeedi S20 Infinity Ultra
No independent test published yet.
Roborock Saros Z70
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 67% | 83% | 0.5 | 1,204 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). |
Specifications
| Yeedi S20 Infinity Ultra | Roborock Saros Z70 | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 22,000 Pa | 22,000 Pa |
| Main brush | anti-tangle main brush (ZeroTangle 4.0) | FreeFlow brush |
| Dustbin | - | 180 mL |
| Extending side brush | - | Yes |
| Mopping | ||
| Mop | Roller | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges |
| Mop lift | - | 15 mm |
| Leaves mop at dock | No | Yes |
| Extending mop | - | Yes |
| Water tank | - | 69 mL |
| 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 |
| Water hookup option | - | Yes |
| Navigation & app | ||
| Navigation | - | LiDAR + camera |
| Obstacle avoidance | RGBD (RGB camera plus depth) AI obstacle avoidance with stain and large-particle recognition | 3D sensing, VertiBeam and dual cameras; the OmniGrip arm can move light items such as socks out of the way |
| Climbs thresholds | - | 40 mm |
| Matter | - | Yes |
| Voice assistants | - | Alexa, Google Assistant |
| Build | ||
| Height | - | 3.1 in (79.8 mm) |
| Retracting LiDAR | - | No |
| Battery | - | 6,400 mAh |
| Run time | - | Up to 3 h |
| Warranty | 1 year | 1 year |
| Released | 2026-05 | 2025-05 |