Roborock S4

Running these analyses costs money. Buy through my links to help keep lights on! I may get a small commission.

Overall

#189 in

Robot Vacuums

according to Reddit Icon Reddit

Sentiment score57% positive
4
1
2

Top Pros

Top Cons

No summary available.

Last updated: Sep 5, 2026

Reddit Reviews

Reddit Iconabhitchc
5 months ago

I’ve been running a Roborock S4 close to five years. Has been great with basic maintenance. Only part I’ve had to change out is the battery. Cost $50.

Reddit Iconagrot3ra
6 months ago

Have also owned roborocks since the S4. The only big downside is IF something does go wrong past their 1 year warranty you’re completely out of luck. Their in house repairs are prohibitively expensive (costs almost as much as a new vacuum). My dock broke for my S8 Pro Ultra at the 13 month mark and they advised me to buy a second hand one off eBay because they don’t repair docks or sell dock replacements. Their service in the US is absolutely terrible. I ended up getting a new dock off of eBay for way too much money and I’m hoping it lasts more than a year.

Reddit Iconatran0511
12 months ago

I have a 9 month old so everything you said applies to me… I will say I haven’t checked on the ramp thing but the s8+ I bought last year works very well. It goes over the mats. The reason I bought it was because I wanted better than obstacle avoidance. I was coming from an S4 (not max) which had none. This does a good job, is self empty and does mop too. The mop is a vibrating mop bit the spin type of a revo. This doesn’t bother me as robot mopping still isn’t great no matter what you get, until you’re shelling out $1500+. Even then, I don’t think mopping tech has “matured yet”. I ultimately would just recommend a robot vacuum that has good obstacle avoidance as you just don’t want it to get stuck places since you’re spending time with your kiddo and not worrying about cleaning/picking up as much

Reddit Iconclearbox
10 months ago

I just replaced a Roborock S4 which I have been using since 2019, with a Roborock Qrevo Curvx. Man, what an upgrade! The S4 was still running fine, but I wanted something with a mopping function. Ran it yesterday, and the new Curvx did an amazing job. I was really impressed by the amount of new features which can be found in these robo Vacuums now. I believe the added cost for the high end models are worth it… as they have functions that lower cost models will not.

Reddit IconDano-9258
10 months ago

We just ordered the q10 s5+ last night and will be getting it tomorrow. We have a short haired lab that her hair gets everywhere in our carpet. Our old Roborock s4 doesn’t pick it up well, so hoping this does better

Reddit IconF2CMaDMaXX
11 months ago

My S4 is thankfully still going fine (except it 'mystically' stopped cross-hatching), however i did want something with some basic obstacle avoidance and having replaced the original use-case for the S4 with something that had an auto empty dock, i really wanted that function too. I get your waste to have a mop function and not use it, and i also understand the getting used to manually emptying every day, but honestly, the ease and improvement in suction when the bin is frequently (and automatically) emptied, is worth it. For the mop, manufacturers are shoving one on there whether it's any good or not, it's a check box for the showroom brochure, i would just ignore the fact it has one. Now, i replaced my S4 with an Q10 S5+ - it's the auto-dock'd version (the +) and whilst it has the fancier mop compared to the otherwise identical Q10 X5+, for some reason, the S5+ is frequently available for $299 on sale. Finally, bear in mind our S4 has a great/large dust bin capacity, that's not typically the case with newer models, they're more or less designed to have an auto empty dock to compensate. To go back to my point of getting max performance during the vacuum run, i have mine empty every 15 minutes, keeps the bin and the filter more clear, as the more full the bin, the lower the suction will be. I tried various replacements for the S4 for carpet-only performance, and the Q10 was the best.

Top Robot Vacuums on Reddit

1
Roborock Qrevo S

Roborock

Qrevo S

82% positive of 247 users

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

2
Roborock Saros 10 Series

Roborock

Saros 10 Series

76% positive of 370 users

Slim, quiet, excellent avoidance, but weak on carpet.

3
Dreame L40S Ultra

Dreame

L40S Ultra

81% positive of 189 users

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

4
MOVA P10 Pro Ultra

MOVA

P10 Pro Ultra

86% positive of 152 users

Budget king, smart avoidance, but struggles on patterned carpets.

5
Roborock Qrevo Curv Series

Roborock

Qrevo Curv Series

86% positive of 139 users

Great for pet hair; handles high thresholds, but poor avoidance.

Rankings by Use Case

Other Reddit Recommendations:

FAQs