Robot Vacuum Buying Guide

Measured in Pascals (Pa), suction power determines how well the robot picks up debris from carpets and hard floors. The range across current models is 4,000Pa to 25,000Pa.

What you need: 7,000Pa+ is fine for hard floors and low-pile carpet. For medium to thick carpet or heavy pet hair, look for 12,000Pa or higher. Above 18,000Pa you're in flagship territory with diminishing returns on most floor types.

Navigation determines how efficiently the robot cleans and how well it avoids obstacles. The main technologies are:

• LiDAR only: Fast, accurate mapping. Found on budget models. Misses small floor-level objects.
• LiDAR + 3D Structured Light: Adds depth sensing for better obstacle detection. The mid-range standard.
• LiDAR + RGB Camera + 3D Sensors: Full multi-sensor avoidance. Can identify specific objects (shoes, cables, pet waste). Premium feature.

What you need: If you have kids, pets, or frequently leave items on the floor, invest in a model with RGB camera obstacle avoidance. If your floors are generally clear, LiDAR + structured light is plenty.

Robot mopping ranges from "barely dampens the floor" to "genuinely replaces hand-mopping." Key differences:

• No mop: Some budget models are vacuum-only (e.g., eufy C10).
• Spinning pads: Most common. Dual pads at 180–200 RPM handle daily maintenance well.
• Vibrating pads: Higher scrubbing frequency, good for light stains.
• OZMO Roller: Ecovacs' roller-based system with instant self-wash scored the highest mopping results ever recorded (4.95/5).

What you need: For hard-floor-heavy homes, mopping quality should be a top priority. Look for hot water washing in the dock (149F+) and edge mopping features like MopExtend or FlexiArm for wall coverage.

The dock is where the real convenience lives. Features to look for:

• Auto-empty: Empties the dustbin into a bag (lasts 60–150 days). Essential for hands-free operation.
• Mop washing: Washes the mop pads automatically. Hot water (149F+) is significantly better than cold.
• Hot-air drying: Prevents mildew and odor on mop pads. Important in humid climates.
• Auto water refill: Connects to a water supply so you don't refill the tank manually.
• Auto detergent: Dispenses cleaning solution automatically. A rare premium feature.

What you need: At minimum, get auto-empty. If you mop, hot water wash + hot-air dry is the baseline for avoiding smelly pads. These features are now available starting around $500.

Current models range from 120 to 260 minutes. Most robots can recharge and resume automatically, so battery life mainly affects how long a single cleaning session takes.

What you need: 150+ minutes handles most homes under 2,500 sq ft in one session. Larger homes or heavy carpet (which drains battery faster) benefit from 180+ minutes. The 260-minute MOVA S10 is the standout for large spaces on a budget.

Robot heights range from 2.85 inches to 4.3 inches. This determines what furniture the robot can clean under.

What you need: If you have bed frames, kick-space under cabinets, or low sofas, measure the clearance first. Models under 3.5 inches (eufy C10 at 2.85", Roborock Qrevo CurvX at 3.14") can reach spaces most robots cannot. Some models have retractable LiDAR turrets to reduce their height.

Robot vacuums range from 51 dB to 67 dB during cleaning. For reference, 50 dB is a quiet conversation, 60 dB is a normal conversation, and 70 dB is a running shower.

What you need: If you run the robot while home or at night, look for models under 60 dB. The quietest models include the eufy C10 (51 dB) and Narwal Freo Z Ultra (58 dB). Note that dock drying cycles can be louder than the robot itself.

Every modern robot vacuum comes with an app. Key features to look for:

• Multi-floor mapping: Saves maps for different floors of your home.
• Room-specific settings: Set different suction/mop levels per room.
• No-go zones: Draw areas the robot should avoid.
• Scheduling: Set cleaning schedules by room and day.
• Matter support: Works with Apple Home, Google Home, and Alexa natively.

What you need: All models we cover include basic app control and mapping. Matter support is still limited — the Ecovacs X9 Pro Omni is one of the few with full Matter compatibility.