Xiaomi Robot Vacuum S40C vs Roborock Q7 Pro Max: which one suits you?

The two differ in 8 of the specs we have recorded, and the Xiaomi Robot Vacuum S40C is cheaper by SAR 60 (prices checked 5 Nov 2026).

Which one should you choose?

  • Paying less: cheaper by SAR 60
  • Higher robot dustbin: 0.52 L vs 0.4 L
  • Higher power levels: 4 vs 3
  • Stronger suction for carpets and deep dust (13,000 Pa vs 5,000 Pa)
  • Higher run time: 180 min vs 110 min
  • Bigger battery (3,200 mAh vs 2,600 mAh)

The deciding difference here: suction power and run time and price.

Compares recorded specs; a missing spec does not mean the feature is absent.

Key differences

  • Suction power

    5,000 Pa✓ 13,000 Pa
  • Run time

    110 min✓ 180 min
  • Robot dustbin

    ✓ 0.52 L0.4 L

Specifications side by side

22 of 22 specs

Scroll the table sideways to see the rest.

Spec
XiaomiSAR 639
Xiaomi Robot Vacuum S40C specs
RoborockSAR 699
Roborock Q7 Pro Max specs
Reference priceSAR 639SAR 699
Suction power5,000 Pa✓ 13,000 Pa
Run time110 min✓ 180 min
Anti-hair-tangle—Yes
MoppingYesYes
Self-emptying dockNoNo
Automatic mop washingNoNo

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Similar comparisons

Direct comparison questions

What is the difference in suction power between the Xiaomi Robot Vacuum S40C and the Roborock Q7 Pro Max?

Suction power is higher on the Roborock Q7 Pro Max: 13,000 Pa vs 5,000 Pa on the Xiaomi Robot Vacuum S40C. If this spec is your priority, the difference favours it.

What is the difference in battery capacity between the Xiaomi Robot Vacuum S40C and the Roborock Q7 Pro Max?

Battery capacity is higher on the Roborock Q7 Pro Max: 3,200 mAh vs 2,600 mAh on the Xiaomi Robot Vacuum S40C. If this spec is your priority, the difference favours it.

What is the difference in run time between the Xiaomi Robot Vacuum S40C and the Roborock Q7 Pro Max?

Run time is higher on the Roborock Q7 Pro Max: 180 min vs 110 min on the Xiaomi Robot Vacuum S40C. If this spec is your priority, the difference favours it.

What is the difference in mopping between the Xiaomi Robot Vacuum S40C and the Roborock Q7 Pro Max?

No difference here: mopping is Yes on both.