Roborock Q7 M5+: problems, parts and running costs
Checked: 2026-10-06
Summary
The Q7 M5+ is a LiDAR robot vacuum with a bagged auto-empty dock. The main issues are hair wrapping on the main roller, pet hair pickup that is only average, and a mop that leaves excess water on floors. Running costs are dominated by replacement dust bags, mop pads, and filters. It is a good buy below roughly $250, where LiDAR plus an auto-empty dock is hard to find.
Common problems and fixes
- Hair wrap on the main roller — independent testing measured 43% wrap on 7-inch hair, worse than the 38% category average; the “Dual Anti-Tangle” marketing applies to the side brush only, not the roller. No fix beyond regular cleaning; warranty coverage unknown. [2]
- Pet hair pickup below expectations — flattened pet hair pickup measured 79% against an 81% average; not a strong choice for heavy-shedder households. No fix; warranty coverage unknown. [2]
- Excess water left after mopping — 2 g of residual water versus a 1.01 g average, with streaking risk on some floors; the three water-flow settings produced nearly identical results. No fix; warranty coverage unknown. [2]
- No obstacle avoidance — cables, socks, and small clutter must be picked up before each run. No fix; this is a hardware limitation. [2]
- No mop lifting over carpet — the mop pad must be detached before carpet runs and reattached for hard floors. No fix; this is a hardware limitation. [2]
- Dock does not wash the mop pad — the pad must be washed by hand, typically after each run. No fix; this is a hardware limitation. [2]
- Battery efficiency below average — 1.18 minutes of runtime per 1% charge versus a 1.33-minute average. No fix; warranty coverage unknown. [2]
- Tall body won’t fit under low furniture — the robot is 3.90 inches tall and will not clear most low furniture. No fix; measure furniture clearance before buying. [1]
Parts and consumables
- 2.7 L disposable dust bag — no current unit price was read; must be replaced roughly every 7 weeks per Roborock’s internal testing claim. [2]
- Mop pad — no current unit price was read; must be washed by hand after each run and replaced when worn. [2]
- Filter — no current unit price was read; user-replaceable consumable. [2]
- Side brush and roller brush — no current unit price was read; user-replaceable consumables. [2]
Yearly running cost
Not enough data. No current unit prices for replacement dust bags, mop pads, filters, or brushes were found in the sources read. The dust bag is the primary recurring consumable, with a replacement interval of roughly 7 weeks per Roborock’s internal testing claim. [2]
When it is a good buy
- Below $250 — the feature set (LiDAR mapping plus bagged auto-empty dock) is difficult to match at this price. [4]
- Above $300 — competitors add obstacle avoidance and self-washing docks, making the Q7 M5+’s feature gaps harder to justify. [1]
- Roborock Q10 S5+ at $279.99 — the same lab’s under-$300 pick; measured better on carpet deep clean (96% vs 75%), pet hair (96% vs 79%), hair wrap (0% vs 43%), and residual water (0.5 g vs 2 g), and adds obstacle avoidance and automatic mop lifting. The better choice unless the Q7 M5+ is meaningfully cheaper. [3]