Which is better for pet hair?

The Shark Matrix Plus. It has a self-cleaning brushroll that resists hair wrap and a HEPA filter, and it is marketed for pet homes. The Roomba 106 lists neither feature.

Does the Shark really mop?

Yes. It vacuums and mops at the same time, per Walmart's product page. The Roomba 106 only vacuums.

Is the Roomba worth the extra $110?

Only if Siri control or the longer dock interval matters to you. The Shark adds mopping, HEPA filtration and mapping for less money at their latest prices.

How often does each dock need emptying?

The Roomba dock is rated for up to 75 days. Shark says its base holds weeks of debris. Both figures assume normal use.

Which has the bigger onboard bin?

The Roomba 106, at 0.11 gal versus 0.05 gal for the Shark. The dock does most of the holding on both.

Which works with Siri?

Only the Roomba 106. The Shark Matrix Plus supports Google Assistant and Amazon Alexa.

iRobot Roomba 106 Robot Vacuum vs Shark Matrix Plus Robot Vacuum and Mop

Buy the Shark Matrix Plus for most shoppers. It vacuums and mops in one pass, has a HEPA self-empty base, and costs $149.99 at Walmart as of October 31 versus $259.99 for the Roomba 106 as of October 28. Choose the Roomba 106 only if you want Siri voice control and a dock rated to hold debris for up to 75 days.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.