Is 18,000 Pa enough for a wet and dry mop?

Yes. That figure is high for this class and should lift dry debris and wet spills from hard floors. Real pickup depends more on the brush and water flow than the number alone.

Can it clean carpets?

No. It is listed for hardwood floors, and wet mops should stay off carpet and rugs. Use it on sealed hard surfaces only.

Does it run on a battery?

No. It plugs into a wall outlet, so suction stays constant but you are tied to the cord's reach.

How heavy is it to use?

It weighs about 23.6 lb, which is heavy for a floor cleaner. Expect effort on stairs and tight turns, and plan to store it on the same floor where you use it.

Does it need an app or phone?

No. There is no app control; everything runs from the unit itself.

What should I check before buying?

Confirm the cord length reaches your rooms and that your floors are sealed hardwood or tile. Check that replacement brushes and filters are available, since this is a small brand.