I am late to this thread.
I have an apraxic child.

I think what you are asking is tricky.

Think of it as a spectrum in that some kids may be more apraxic than others. Because of this a child may hit aspect of apraxia and not others. Some kids are more apraxic than others. Kids that are apraxic Are often considered late talkers. My child was not.

Conditions such as SPD/sensory issues, CAPD can be comorbid with Apraxia. I believe attention issues can also be found comorbid.

Now, on the other side, apraxia can be comorbid with ASD.

Because of this, one can see overlaps between the two.
If a child is apraxic with sensory issues, that can be hard to differentiate.

Apraxia, because it is a motor-planning issue, one can also see gross motor or potential fine motor issues. Besides CAS, one may see oral apraxia.
Can your child lick his lips? Blow bubbles? Use his tongue to touch the side of his mouth?

In apraxia, communication often falls apart at the sentence level. A child may be able to do an individual sound or an individual word, but trying to say them all together, it falls apart. That falling apart may happen at a word level or at a sentence level.

Traditional speech therapy usually does not show fast improvement for apraxia. Apraxia therapy has much repetition, and often is multiple times a week.

Does your child have apraxia? Does your child have ASD? Does your child have ASD with apraxia? Does our child have Apraxia with sensory issues? It could be any, and it may take time to figure out the best diagnosis.

Of course, then when one adds giftedness to the Above....it just becomes convoluted super fast.