Dreame D9 Max Gen 2 vs Xiaomi Robot Vacuum S40C: which one suits you?

The two differ in 9 of the specs we have recorded, and the Xiaomi Robot Vacuum S40C is cheaper by SAR 60 (prices checked 7 Nov 2026).

Which one should you choose?

  • Stronger suction for carpets and deep dust (6,000 Pa vs 5,000 Pa)
  • Higher run time: 285 min vs 110 min
  • Has HEPA filter; the other doesn't
  • Paying less: cheaper by SAR 60
  • Bigger tank, fewer refills (0.26 L vs 0.24 L) · slight difference
  • Higher cleaning width: 32 cm vs 30 cm · slight difference

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

    ✓ 6,000 Pa5,000 Pa
  • Run time

    ✓ 285 min110 min
  • Robot dustbin

    ✓ 0.57 L0.52 L

Specifications side by side

23 of 23 specs

Scroll the table sideways to see the rest.

Spec
DreameSAR 699
Dreame D9 Max Gen 2 specs
XiaomiSAR 639
Xiaomi Robot Vacuum S40C specs
Reference priceSAR 699SAR 639
Suction power✓ 6,000 Pa5,000 Pa
Run time✓ 285 min110 min
Anti-hair-tangleYes—
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 Dreame D9 Max Gen 2 and the Xiaomi Robot Vacuum S40C?

Suction power is higher on the Dreame D9 Max Gen 2: 6,000 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 Dreame D9 Max Gen 2 and the Xiaomi Robot Vacuum S40C?

Battery capacity is higher on the Dreame D9 Max Gen 2: 5,200 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 Dreame D9 Max Gen 2 and the Xiaomi Robot Vacuum S40C?

Run time is higher on the Dreame D9 Max Gen 2: 285 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 Dreame D9 Max Gen 2 and the Xiaomi Robot Vacuum S40C?

No difference here: mopping is Yes on both.