The Viomi s9 isn't readily available in the United States and so it's unlikely that I'll review it.

Yes, it is.

I won't be able to get a video review up in time but I can give you a quick summary. General pickup performance and edge pickup performance on carpet and hard floors is very similar for both robots though the S6 MaxV does deep clean carpets better. It picked up 6g of debris in our deep clean test while the S7 only picked up 3g in the same test. The S7 brush roll tangles just as much with longer hair as the S6 MaxV's brush roll though it is easier to detangle the S7's brush roll because it doesn't have any bristles. Other specifications like bin volume, noise output, and size are very similar for both robots. Both robots also navigate very similarly. The biggest reason to go with the S7 over the S6 MaxV is auto-empty dock compatibility. You can buy a self-empty dock separately for use with the S7. You cannot do the same for the S6 MaxV. The biggest reason to go with the S6 MaxV over the S7 is ReactiveAI. The S6 MaxV has it while the S7 does not. Which robot you buy really just depends on what's most important to you - auto-empty dock compatibility or ReactiveAI. Hope that helps!

@@consumer-analysis Thanks 🙏🏼, that’s a good peace of information. How about sonic vibration motor for mop on s7, is that makes mopping any better?

@@manichowdary5589 Hi, sorry for the delayed reply. My testing showed that no, the vibration on the S7 really doesn't make much of a difference at all in mopping performance.

Do you happen to have two large dogs?Im thinking about buying one, but I have two dogs (and a cat), which means my house is full of dog hairs and sand... On top of that my downstairs area is over 180m2/1940 sq ft. Maybe it's too much for a robot?

@@Dr.BenjiBuddy hmm, if you're using the mop function might have to charge it once during the section. It says it should cover 200kvm though. If you run it daily and remember to empty the bin every day it might work. Still alot easier than to vaccum everything yourself. You can track where it has been on the app. The first week it gathers alot more than ususal, don'tlet it discourage you right away if you end up getting one. After that you'd get pretty much the same amout of dust every day. Empty mine every 3 days on 70 kvm. You still need to pull out the vaccum for your sofa or behind the places it can't reach, but not nearly as often as you would without it. Maybe ask more people or check out what other modells can do before you decide :) After mapping the house, you can always have it work on a specific location while you work on something else. It's great 👍

I discuss this exact topic when I go over the top 3 robot vacuums I recommend at 8:24 of this video: kzfaq.info/get/bejne/jdqDlrVzl9_FiZs.html

@@consumer-analysis Thank you for the response and detailed video reviews. They are very helpful. Keep up the good work!