Grand Pro A1 VS. COAYU C520

This unit is able to get under and clean under sofas, tables, beds and any other furniture in the house.

Strong Suction of 1000Pa for Large Particles and with automatic carpet boost. Ideal for all floor types.

A multi surface brush roll combines with the good suction and a high-efficiency filter to give you an amazing solution for homes with pets.

This device has double spinning side brushes which pull in debris from corners and edges.

This unit's battery life is excellent as it can run for 150 minutes.

Device has a charge time of 5 hours until fully charged.

A spinning, multi-surface brush roll takes on carpets while powerful suction and dual spinning side brushes pick up debris from hard floors, edges, and corners.

Device has a spinning, multi-surface brush roll which does a tremendous job of taking on debris deep in carpets.

Its ability to run for 120-150 minutes without shutting down makes it ideal for large rooms.

Device is able to auto dock and recharge when it runs out of battery.

This device features the auto dock and resume cleaning after charging which saves up time.

This device is able to navigate from room to room.

This robotic vacuum is able to avoid stairs and objects.

This device is quiet enough making it possible to work or do something else while it’s cleaning.

This device has a high efficiency hepa filter that is ideal for picking up dust and other airborne particles.

Precision laser navigation. Z-shape cleaning path. Selective room cleaning. Faster and better.

Has a max mode for concentrated cleaning which increases the suction power to deal with messes.

Plan your cleaning plan in advance by scheduling your robot vacuum. Clean-up before parties or your routine chore, all schedule types are under your control. Adjusting power level, cleaning path, and getting robot in-charged on your palm.

Be in-known the real-time cleaning map, cleaning coverage, battery status, and runtime. You could check where your robot is and was "on-duty". All cleaning modes (Smart/Spot/Edge/Manual Clean) are under your fingertips.

Scheduling your cleaning plan on the App and remote control. You could plan your intelligent cleaning and start your robot by WiFi-connected App before you back home.

Turn on your robot vacuum cleaner by just commanding your smart voice assistants.

Device has a large bin with a holding capacity of over 30 days cleaning sessions.

This device’s thin design allows it to easily coast below furniture to provide thorough clean throughout your home

Device has an 8' BotBoundary strip to enable it to avoid obstacles and ledges.

2600mAH Lithium battery

0.23L

Device has virtual walls included.

10.9 x 10.9 x 2.8 inches

4 pounds

Super slim. Long cleaning time and auto recharge. Anti collision and anti-fall. Boundary magnetic strip. Always ready to clean. Non-stop cleaning. Endurance cleaning.

Device is noisy on hard floors.