
Roborock
Qrevo S
Reliable, great mopping (lifts pads), but poor cable avoidance.

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I've got the switchbot S10. I'm impressed with it. In fact, impressed enough that I just bought another one for the second floor while they have their sale on. 319 quid at the moment. I had some issues with the first one. Their quality control is maybe a bit off and it didn't work. But they immediately replaced it. Took a few weeks because they messed up the shipping and tried to ship from Germany and for some reason couldn't sort the import duties. I refused to pay the duties, even though the said they'd pay me back (I'm sure they would have) so they sent it from Hong Kong instead. So basically, they seem like a decent and honest company that will fix their mistakes. Maybe a little disorganised. I suspect they may be growing quickly so some of their processes are a bit screwy. But even with a faulty device delivered and a wait for a new one I bought a second one so that says something I guess. Their support is good. The devices are excellent. Their processes maybe are a bit disorganised.
I don't quite think that's accurate. A number of people got the K10+ pro when I recommended it for Prime Day and bothered to post on here how happy they were. As a brand, I really like Switchbot and I don't think it ever gets enough attention. The K10+ Pro and K11 are WAY better than they ought to be w their stats. I've tested both. I don't love the S10 or S20, but those minibots? Magic.
I was torn between the S10R and the Z70, but I ended up going for the Z70 because of the robotic arm and honestly the suction power and obstacle avoidance are perfect. My place has a pretty complicated layout, but I never have to worry about it getting stuck anywhere.
I have the switchbot s10 for about 7 months now...only issue is the obstacle avoidance could be better; other than that, no other issues. It runs smoothly. Also it's cheaper than others with discount code. For the (discounted) price, it's worth it.
Those are quite different machines to be honest. The switchbot S10 wash station I'm pretty sure requires plumbing into a drain and clean water line. Is that even allowed in your apartment? It has a roller style mop which continuously self cleans and puts the dirty water into a separate tank, and also lifts up for going over rugs. But as a result the robot is quite big. The wash station and self empty/charge stations are separate so theres a lot more to store. The roborock is much smaller, both the robot and the station. It's mopping system is completely basic, just a cloth it wets and wipes across the floor. You then have to remove the mop and manually clean it. The mop also can't lift, so to vacuum rugs you must remove the mop attachment. It's a lot less complicated though so theres less to go wrong, but it's also a very new model so nobody is going to be able to speak about reliability. If you care about simplicity and mainly vacuuming the roborock is probably the best choice. The switchbot is a really big machine and requires plumbing. Reliability is a complete toss up pretty much no matter what you choose unfortunately. Robot vacuums are complicated with lots of tiny moving parts which increases the chance of something breaking.
I use Switchbot S10, has matter built in and you can add it to homekit for basic functions.

Roborock
Qrevo S
Reliable, great mopping (lifts pads), but poor cable avoidance.

Roborock
Saros 10 Series
Slim, quiet, excellent avoidance, but weak on carpet.

Dreame
L40S Ultra
Superior avoidance, great for pet hair, but poor on carpets.

MOVA
P10 Pro Ultra
Budget king, smart avoidance, but struggles on patterned carpets.

Roborock
Qrevo Curv Series
Great for pet hair; handles high thresholds, but poor avoidance.

Ranked #1
Dreame - X50 Ultra

Ranked #1
Roborock - Saros 10 Series

Ranked #1
Roborock - Qrevo Curv 2 Flow

Ranked #1
Roborock - Saros 10 Series

Ranked #1
Dreame - X50 Ultra

Ranked #1
Dreame - L40S Ultra