Extracting benefits from features

If a feature of a mobile phone is that its fast and has a system for securing your personal data, what do we write in the headline when we sell it? would something like this work:

MAKE YOUR JOB FASTER AND SAFER WITH THIS GREAT MOBILE PHONE

write about features here blah blah

Does this work? is it that simple? i don't understand how i should create a headline at all, im trying to use this theory but i still stuck for some reason.

Never worry about your data again with this super fast, super secure phone.

Great title suggestion david, I was instantly intrigued.

Never worry about my data is the benefit
super fast, super secure are the features.

I like that is gives me a benefit immediately followed by the key feature in a short and concise way.

your headline should highlight the greatest benefit to the prospect, reels them in.

Keep your headlines short and catchy!

Checkout the wolf of wall street when they discuss selling the pen.

What is the outcome of the product? Connecting to others through calls. More calls = more deals, better relationships,smoother interactions.
What problems does it solve? Getting connected faster with less lag. security/safety
What benefits does it offer? Responsiveness,peace of mind.

So in your example:
Connect to people faster through lightning responsiveness, and sleep peaceful at night with it's super secure encryption.