Is a cat's hearing and smell as keen as a dogs?

They’re different, but yes, more or less.

Dogs have more smell neurons and more of their brain seems to be devoted to smelling, but cats may be more sensitive, as they have 30 V1R receptors versus 9 in dogs and 2 in humans.

Cats can hear one octave higher frequencies than dogs, and have a sense of distance to the sound source. If a sound source is three feet away, they can tell where it is to within 3 inches. Their ears can each rotate and aim to zero in on sounds.

Nice @Zaku. Thank you.
Cato smells me from head to toe when I get home, to find out where I’ve been and what I’ve been doing.
Vanta doesn’t give a shit!

Yeah, like the article I linked mentions, ability is one thing, but interest is another. Some people think dogs are smarter than cats, but mainly the dogs tend to be much more interested in pleasing people than cats tend to be.