Can a system app be disabled Android 6.0 Blu Vivo XL?

[Canada A]

I have a third-party phone app (Fongo) operating on a data-only plan. I have no need for the system phone, contacts, or message apps. Is there a way to disable any of these or other system apps? Not rooted.

 

[Mooncatt]

Just go into your app manager and see, but I don't think system apps can generally be disabled without rooting and making additional changes.

If you can disable any of those apps, do one at a time and use the phone for a while to check for any problems. That way, if disabling one causes a problem, you'll know which one it was and can enable it again.