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Comparing 2 robot vacuums

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

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

Roborock Q7 M5 × Best on 3 facts iRobot Roomba Combo 115 × Best on 2 facts
The facts that decide most
Lowest price – –
Score same on both 4.9 4.9
Customer rating – –
Tests Just A Dad Approved Vacuum Wars TechRadar Tom's Guide Just A Dad Approved
Suction power higher is better 10,000 Pa 15,000 Pa best
Runtime per charge longer is better 180 min best 100 min
Climbs thresholds up to higher is better 0.8 in (20 mm) best 0.6 in (16 mm)
Robot height lower is better 3.9 in (9.9 cm) 3.1 in (7.9 cm) best
Mop lift on carpet higher is better same on both no no
Dust bag lasts longer is better up to 30 days –
Navigation same on both LiDAR turret LiDAR turret
Rank
Rank rank 2 of 13 without a station rank 1 of 13 without a station
Mopping
Mop type same on both flat or vibrating pad flat or vibrating pad
Automatic mop detach same on both no (assumed) no (assumed)
Washes the mop same on both no no
Hot-air drying same on both no no
Station
Station same on both charging dock only charging dock only
Plumbing hookup same on both no no
Brush and obstacles
Anti-tangle brush yes (best) no (assumed)
Obstacle avoidance – none
Climbing system for high thresholds same on both no (assumed) no (assumed)
Noise and age
Noise not judged 65 dB –
On the market since April 2025 April 2026
Suction and brushes
Extending side brush same on both no (assumed) no (assumed)
Carpet detection detects carpet and boosts suction –
Suitable for pet hair no –
Mopping
Mop extends to the edges no (assumed) yes
Mop refreshed while mopping same on both no (assumed) no (assumed)
Water tank in the robot 270 ml –
Steam – no (assumed)
Dock
Empties the dust bin same on both no no
Dries the mop same on both no no
Dispenses detergent same on both no no
Navigation and obstacles
No-go zones zones in the app –
Recharge and resume yes –
Stair-edge sensors yes –
Robotic arm – no (assumed)
Robot
Robot diameter 12.8 in (32.5 cm) 11.9 in (30.3 cm)
Robot weight 7.3 lb (3.3 kg) 4.7 lb (2.15 kg)
Dust bin in the robot 400 ml –
Battery
Battery capacity 3,200 mAh 2,500 mAh
Charging time 4 h –
Smart features and warranty
Matter same on both no (assumed) no (assumed)
Voice assistants Alexa, Google Assistant Alexa, Google Assistant, Siri
Warranty same on both 2 years 2 years
Scheduled runs yes –
Home Assistant same on both official integration 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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