R850 Robot Vacuum VS. Roborock s4

Has a height of 3.78 inches – cleans below furniture above its height and may not clean under furniture below its height

Total area of coverage of 2700 square feet – ideal for medium and large sized homes.

2000 Pa vacuum power – performs effectively on carpeted and hard floors. Has the ability to lift up AA batteries

Powerful suction and hepa filter ideal for homes with allergies. Lifts pet hairs rooted in low pile carpets and hard surfaces.

Side brushes and slim size can reach and clean corners and along the walls.

Over 150 minutes of continuous run time provided by powerful battery

240 minutes for full battery charge

Features a barrier cross height of 15 mm that progresses easily from hard floors low pile carpets. Perfect for wood, tiles, linoleum, stone and low pile carpets

Cleans large rooms within 2700 square feet. Appropriate for large living rooms, bedrooms and offices

Returns to charging station automatically on low battery or after completing to clean to recharge.

Can resume to exactly where it had stopped after automatic dock and recharge

Automatically recognises rooms – can be sent to move from room to room on a single floor. stays away only from restricted rooms.

Anti stairs and object detectors – automatically analyzes the environment around it. Cleans only around objects and turns away from stairs after sensing them

Approximately 68 db noise level – operates on a whisper quiet noise level. No interrupting loud background noise

Turbo and Max mode – automatically increases suction power to maximum on carpets and stubborn areas.

Washable hepa filter – eliminates more than 99% of all allergens to a tiny size and dust particles. Ideal for people with allergies

Intelligent home navigation system – plans the routes of the entire home so that no path or area is skipped.

Only sweeps

Max cleaning mode for concentrated cleaning – automatically increases suction power to 2000 Pa in spots with stains or high piles of debris

Provides simple control at your fingertips. Just click on any robot settings in the comfort of your palms wherever you are. Hands free cleaning to the end

Features a comprehensive Roborock app control – starts, stops, schedules, adjust cleaning modes, set no go zones etc from anywhere. App can be downloaded onto your Android or iPhone

Connects to home WIFI

Can be set to clean in advance – chose a time, daily or weekly and cleaning mode. Automatically cleans even with no one at home.

Speak to Roborock s4 using the Alexa or Google Assistant

Create no go zones using the Roborock App – controls the unit from entering into areas it has been limited from

Only large debris to the size of crumbs from food or bread

Slim and compact low profile design – smoothly glides beneath furniture and hard to reach areas

5200mAh LiPo battery capacity

640 ml dust bin capacity – contains debris much longer without being emptied.

Comes with Virtual walls – sets boundaries beyond which Roborock s4 Will not cross to clean.

13.78 inches x 3.78 inches

13.78 pounds

• Automatically boost suction power • Avoids stairs and obstacles • Includes no go zones and virtual walls • Large coverage of 2700 square feet • Up to 150 run time minutes • 4 cleaning modes – turbo, max, balanced and quiet • Works with Alexa, WIFI and Remote control App • HEPA filter

• Not ideal for thick carpets