
iRobot Roomba i4 EVO
Score: 80/100
Roborock Qrevo Series
Score: 77/100Rankings

The Roomba i4 EVO offers LiDAR navigation, strong suction and Alexa voice control in a compact package, making it a solid choice for pet owners in small-to-medium homes. Its main drawbacks are a small dustbin and the absence of a self-emptying base, which can increase maintenance effort. Ideal for users who prioritize precise mapping and compact size over fully hands-free operation.

Roborock's QV 35A delivers 8000 Pa suction, dual-spinning mops and a fully automated dock that empties dust, refills water and washes pads, providing up to seven weeks of maintenance-free use. The unit and dock are bulky and the onboard dustbin is relatively small, which may require frequent emptying. Best suited for large households that value convenience and powerful cleaning.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 8,000 Pabest | |
— | 180 minutesbest | |
— | 56 daysbest | |
— | 2.7 Lbest | |
| ↓ lower better | 3.2 kgbest | 15.19 kg |
— | 4,000 mlbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Design(2) | ||
Weight (kg) | 3.2 kg | 15.19 kg |
Dimensions (H×W×L) (cm) | 33.7x9.2x33.9 cm cm | 59.7×44.0×42.2 cm cm |
Features(2) | ||
Navigation Technology | Imprint Smart Mapping (LiDAR) | LiDAR |
Brush Type | Premium 3‑Stage Cleaning System | Anti‑Tangle |

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

Professional reviewers commend the i4 for its strong hard-floor performance, compact maneuverability, fast charging, and intelligent mapping, noting it outperforms many rivals in navigation and build quality. However, they criticize its inability to handle fine sand, the lack of manual power controls, a small dustbin, and the absence of a self-emptying base in the standard model.
Everyday users love the i4's pet-hair pickup, row-by-row cleaning, easy app and voice control, and its ability to slip under furniture, but they commonly complain about the need to empty the small bin often, occasional missed fine dust, and the higher price compared to models that include a self-emptying base.

“intuitive and easy”




Professional commentary is scarce because the QV 35A launched only in early 2025, but the available product pages and brief editor notes emphasize its 8000 Pa suction, extensive auto-empty dock, and precise LiDAR navigation as standout upgrades over previous models.
Early user feedback is overwhelmingly positive, highlighting the robot's strong suction, pet-hair handling, and the convenience of the self-cleaning dock. Reviewers note the machine feels quiet and runs long enough to cover large homes, with no major complaints surfacing yet.