Which is better for pet hair?

The Viomi V3 Max. It lists pet hair as a top use case and has a HEPA filter, which the Roomba Combo i5 does not list.

Which works with more voice assistants?

The Roomba Combo i5. It supports Google Assistant, Alexa and Siri; the Viomi supports Alexa and Amazon Echo only.

Which is lighter to lift?

The Roomba Combo i5 at 7 lb, against 10 lb for the Viomi V3 Max.

Does the Viomi mop as well as vacuum?

Yes. It has a 200 ml 2-in-1 tank for wet mopping alongside vacuuming, and it handles wood, tile and short-pile carpet.

Is the Roomba worth it over the Viomi?

Only if Siri or Google Assistant control and the lighter body matter to you. On specs and ratings the Viomi is stronger, but check current prices before deciding.

How long does the Viomi run on one charge?

Viomi says it cleans about 3,000 sq ft in one session. The Roomba Combo i5 listing gives no runtime figure.

iRobot Roomba Combo i5 vs Viomi V3 Max Robot Vacuum

Pick the Viomi V3 Max for stronger suction, a HEPA filter and a 200 ml mop tank, especially in pet homes. Pick the Roomba Combo i5 if you want Siri and Google Assistant control and a lighter 7 lb body. The Viomi rates 4.4 from 47 ratings against 3.4 from 74 for the Roomba, but no prices were given for either, so compare live store prices before buying.

Ask our shopping agent

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