What punctuation should you use after a list?

What punctuation should you use after a list and before describing the list? In the example below, what should I use where I have used a dash? Or is the dash correct?

"Some examples of Apple’s innovative technologies include the retina display, touch ID, and Apple pay - features that provide convenience and security to users."

Solution 1:

From the Oxford Dictionaries Punctuation guide.

The hyphen you used is often seen but strictly has a different use. It is more correct to use the Em dash.

Some examples of Apple’s innovative technologies include the retina display, touch ID, and Apple pay — features that provide convenience and security to users.

Also their Colon guide supports its use in your sentence

Some examples of Apple’s innovative technologies include the retina display, touch ID, and Apple pay: features that provide convenience and security to users.