iRobot Roomba Plus 415 Combo vs Shark PowerDetect ThermaCharged

The Shark PowerDetect ThermaCharged is the better robot vacuum overall, rated 4.2 to 3.9. The Shark PowerDetect ThermaCharged leads on navigation. The iRobot Roomba Plus 415 Combo wins on mopping.

Higher rated

Shark PowerDetect ThermaCharged

#41 in Self-cleaning dock4.2Full review

A good fit for pet owners in smaller homes who want a heated mop wash and dry; its short measured range makes it a poor choice for big floor plans.

Amazon $599.99

$599.99

iRobot Roomba Plus 415 Combo

#85 in Self-cleaning dock3.9Full review

A low-profile entry to iRobot’s self-washing mop docks for hard-floor homes; the Plus 515 adds hot-water washing for a little more.

Amazon $599

$599

Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Choose the Shark PowerDetect ThermaCharged for navigation (LiDAR + 3D light vs LiDAR).
Choose the iRobot Roomba Plus 415 Combo for mopping (Dual spinning pads, lifts 10 mm, extends to edges vs Vibrating pad, leaves its mop at the dock for carpet, extends to edges).

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.

Factor weight	Shark PowerDetect ThermaCharged	iRobot Roomba Plus 415 Combo
Overall rating	4.2/5	3.9/5
Cleaning 30%	73 measured 89% of sand from carpet, 95% of pet hair, some hair tangled (0.4)	48 not yet tested; estimated from 3 tested iRobot robots and the median of the 70 tested robots
Value 25%	67 $600	67 $599
Dock 20%	100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying	100 Self-empties the bin, washes the mop, hot-air mop drying
Navigation 15%	85 LiDAR + 3D light	65 LiDAR
Mopping 10%	62 Vibrating pad, leaves its mop at the dock for carpet, extends to edges	76 Dual spinning pads, lifts 10 mm, extends to edges

Independent tests

Shark PowerDetect ThermaCharged

Tested by	Carpet deep clean	Pet hair	Hair tangle (0 = none)	Area per charge	Conditions
Vacuum Wars	89%	95%	0.4	649 sq ft	Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped).