A "display phone" refers to a phone model that is placed in a store or showroom solely for demonstration purposes, showing its features and capabilities to potential customers.
Sentences with «display phone»
You will see some stunning looking bezel-less display phones as well. (suggestphone.com)
For example, they must prominently display the phone numbers of local fire and police departments. (smallbusiness.chron.com)
Once you start using a curved display phone, you don't notice the curves. (theverge.com)