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Comparing 2 robot vacuums

Your shortlist side by side: today’s price, our score and every fact the maker states.

  1. ×
    • Highest score
    Shark PowerDetect Self-Empty

    On the market since June 2024

    No price today

    5.0 Best on 2 facts
  2. ×
    Roborock S8+

    On the market since March 2023

    No price today

    not in our ranking Best on 2 facts

Prices updated at 9:04 AM ETTest results read on Sep 9 to Oct 17

Side by side

Green is the best of these 2, also when they share the lead.

Shark PowerDetect Self-Empty × Best on 2 facts Roborock S8+ × Best on 2 facts
The facts that decide most
Lowest price – –
Score 5.0 not in our ranking
Customer rating – –
Suction power higher is better – 6,000 Pa
Runtime per charge longer is better 60 min 180 min best
Climbs thresholds up to higher is better 1 in (25 mm) best 0.8 in (20 mm)
Robot height lower is better 5.7 in (14.5 cm) 3.8 in (9.7 cm) best
Mop lift on carpet higher is better – 0.2 in (5 mm)
Dust bag lasts longer is better up to 60 days best up to 49 days
Navigation same on both LiDAR turret LiDAR turret
Tests, rank and ratings
Tests Vacuum Wars Vacuum Wars
Rank rank 13 of 26 with a self-emptying station –
Mopping
Mop type no mop (assumed) flat or vibrating pad
Washes the mop no –
Hot-air drying no –
Station
Station same on both self-emptying station self-emptying station
Brush and obstacles
Anti-tangle brush same on both yes yes
Obstacle avoidance same on both 3D sensor (structured light) 3D sensor (structured light)
Climbing system for high thresholds yes –
Noise and age
Noise not judged – 68.5 dB
On the market since June 2024 March 2023
Suction and brushes
Carpet detection detects carpet and boosts suction –
Dirt detection yes –
Mopping
Water tank in the robot – 300 ml
Dock
Empties the dust bin same on both yes yes
Bagless yes no
Dries the mop no –
Dispenses detergent no –
Dust bag capacity – 2.5 l
Navigation and obstacles
Stair-edge sensors yes –
Robot
Dust bin in the robot 280 ml 350 ml
Robot diameter – 13.9 in (35.3 cm)
Battery
Charging time 6 h –
Battery capacity – 5,200 mAh
Smart features and warranty
Voice assistants Alexa, Google Assistant –
Warranty 1 year –
Scheduled runs yes –
Home Assistant – official integration

Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.

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