Why are Google contacts and phone apps not available for my Samsung S5 phone? I have a Galaxy SC-04F with a non-rooted, stock ROM that came with the phone, running Andoid 6.0.

I believe it's a common model, and I haven't done anything to it that I know of that makes it special or dysfunctional in any way.

But, Google Play says the standard Google apps Contacts and Phone are not compatible with my device.

Why would these apps be incompatible? Is there a way I can get them installed?
This is not the "standard contacts"app (AOSP contacts).

Google™ contacts and dialer apps only work with Nexus and Android One devices running (as far as I know they come pre installed) starting with marshmallow (Android 6).