Roborock - Flexi Pro Wet/Dry vs Tineco - Pure One S15 Pro Extreme

The Pure One S15 Pro Extreme edges ahead on the Mars Score (69.5 vs 74.4), but the 4.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Flexi Pro Wet/Dry if you care most about dustbin. The biggest gaps in its favor are dustbin.

Pick the Pure One S15 Pro Extreme if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are battery, suction (aw), weight.

Both ship with comparable cordless, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.