Is there a difference from buying an iphone from verizon or walmart?

I'm looking at purchasing an Iphone and was wondering if there's a difference if I purchase it from Walmart or Verizon. If I purchase it from Walmart does apple still offer the warranty? Will Verizon fix the phone is something goes wrong? Any help would be great.

Verizon just sells the phone. Nothing more. Walmart just sells the phone. Nothing more. The only difference would be the price maybe and the salesperson.

Nope