Comparison
roborock S8 Robot Vacuum & Mop vs roborock Q5: Which Should You Buy? (2026)
| At a glance | roborock Q5 | roborock S8 Robot Vacuum & Mop |
|---|---|---|
| Rating | ★★★★⯨ 4.5/5 | ★★★★⯨ 4.6/5 |
| Price | $200-300 | $500-750 |
| Best for | First serious robot vacuum without overspending. | Mixed hard-floor + low-carpet homes wanting one robot to do it all. |
| Guarantee | Amazon return policy applies | Amazon return policy applies |
| Check Today's Price → | Check Today's Price → |
The price gap tells you most of the story: the roborock Q5 sells for $200–300 and only vacuums, while the S8 runs $500–750 and adds a real mop plus obstacle avoidance. That's the entire comparison in one sentence — the S8 does more, and charges roughly double for the privilege. The useful question isn't which robot is better; it's whether the extra work the S8 does is work your home actually needs done.
Worth stating up front: the ratings are nearly identical — 4.6 for the S8, 4.5 for the Q5 — and that tracks with how these two behave at their core job. Both map your home properly with lidar and both pull strong suction. You are not paying the premium for a better vacuum. You're paying it for mopping, and for a robot that steers around the stuff on your floor instead of dragging it under the couch.
The case for the Q5
roborock Q5
Strong suction and precise lidar mapping without a four-figure price.
$200-300 · Amazon return policy applies
The Q5 is the answer to a specific, common situation: you want your first serious robot vacuum and you refuse to spend flagship money. Real lidar navigation means it builds an accurate floor plan and cleans in deliberate passes instead of the drunken pinballing cheap robots do, and the app lets you send it to the kitchen without it touring the bedroom first. The large bin matters more than it sounds, because there's no self-empty base — you tip the bin yourself. That's a ten-second chore, but it's a daily one. Know that going in. It's happiest on hard floors and low-pile carpet; deep shag is not its territory.
The case for the S8
roborock S8 Robot Vacuum & Mop
Vacuum + sonic mopping with obstacle avoidance for whole-home cleaning.
$500-750 · Amazon return policy applies
The S8 exists for homes where vacuuming alone doesn't finish the job. The sonic-vibration mop actually scrubs rather than dragging a damp cloth around, which is the difference between a mop feature you use and one you quietly disable after a month. Reactive obstacle avoidance is the other half of the premium: it recognizes clutter and works around it, where the Q5 knows your floor plan but not what's lying on it. The honest costs beyond the sticker: the self-empty dock is a separate purchase, and mopping means refilling water tanks and washing pads on a schedule. A mopping robot is a small appliance you maintain, not one you forget.
Who should skip which
Skip the S8 if your home is mostly carpet — you'd be paying serious money for a mop that spends its life parked. Skip it too if you know yourself well enough to admit you won't refill tanks; an unmaintained mop is just an expensive vacuum. Skip the Q5 if your floors routinely hold phone cables, socks, or pet surprises, because tidying before every run gets old fast, and the S8's obstacle avoidance is exactly the fix for that. And if daily bin-emptying sounds like a dealbreaker, neither base model solves it out of the box — only the S8 offers a dock, at extra cost.
Bottom line
Most people asking this question should buy the Q5, bank the difference, and be genuinely happy. It covers the hard part — smart mapping and strong suction — for a quarter of what robot vacuums cost a few years ago. The S8 earns its price in one specific house: mixed hard floors that need real mopping, floors that aren't always clear, and an owner willing to budget for the dock and do the water-tank routine. If that's your house, buy once and buy the S8. If it isn't, the cheaper robot is the smarter one.