
Eufy 11S MAX
Score: 70/100
Shark AI Ultra
Score: 86/100Rankings

The Shark AI Ultra Robot Vacuum offers powerful 650 W suction and a 120-minute runtime, complemented by a 60-day self-empty base and precise LiDAR navigation. It lacks a mopping function and its large base can be cumbersome. Ideal for pet owners seeking strong cleaning performance with hands-free maintenance.

The eufy RoboVac 11S MAX is a compact robot vacuum with a slim 2.85-inch profile and quiet operation, delivering adaptive BoostIQ suction for hard floors and medium-pile carpets. Its narrow cleaning path and lack of Wi-Fi or voice-assistant integration limit convenience, making it best for noise-sensitive apartments.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 650 wattsbest | |
1.67 hours | 2 hoursbest | |
100 minutes | 120 minutesbest | |
| ↓ lower better | 2.88 kgbest | 6.915 kg |
— | 60 daysbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Battery & Power(2) | ||
Battery Life (hours) | 1.67 hours | 2 hours |
Runtime per Charge (minutes) | 100 minutes | 120 minutes |
Sensors & Navigation(1) | ||
Navigation Technology | Smart Path | LiDAR |
Build & Design(2) | ||
Weight (kg) | 2.88 kg | 6.915 kg |
Dimensions (H×W×L) | H×W×L: 7.25×32.5×32.5 cm | 35.3×33.2×21.4 cm |
Connectivity & Controls(4) | ||
Voice Control | false | true |
App Control | false | true |
Wi‑Fi Connectivity | false | true |
Voice Assistant Compatibility | false | true |


Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the RoboVac 11S MAX for its consistent cleaning, low noise and intelligent BoostIQ suction, but they criticize the modest real-world benefit of the added suction, the narrow cleaning path and the higher price relative to the base 11S model.
Everyday users appreciate the quiet operation, pet-hair handling and the ability to clean under furniture without pre-tidying, while common complaints focus on the need for multiple passes, the limited cleaning width and the perception that the price is steep for the performance delivered.

Professional reviewers commend the Shark AV2511AE for its precise 360° LiDAR navigation, strong 650 W suction, and impressive 120-minute runtime with recharge-and-resume. However, they note the SharkClean app is comparatively basic and that occasional navigation hiccups and the absence of a mopping function keep it from being a top-tier all-in-one robot.
Everyday users praise the robot's reliable pet-hair pickup, quiet operation, and the convenience of a 60-day self-emptying base that minimizes manual maintenance. Recurring complaints focus on occasional mapping glitches in complex layouts, shorter real-world battery life in intensive modes, and the bulky size of the self-empty base.
“Reliable pet hair pickup, easy app/voice setup, quiet operation, and hassle-free 60-day emptying reduce manual vacuuming.”

“Occasional mapping glitches in complex homes, shorter real-world battery on deep modes, and base size requiring space (e.g., 17.72 in H).”


