You already know about the Galaxy S9 and ' headliner improvements, like a dual aperture camera and shifted fingerprint reader on the back, a second camera lens for the S9 Plus and .
But you may not know about these hidden features, which span everything from camera tricks to messaging.
You probably won't buy a Galaxy S9 phone for any of these alone, but dig into the details and you'll be well on your way to becoming a Galaxy S9 power user. Enjoy!
: All of CNET's coverage from the biggest phone show of the year.
Mobile World Congress 2018
reading•How to become a Galaxy S9 pro
May 24•Vivo Apex's all-screen, no-notch phone comes June 12
Apr 11•21 hidden Galaxy S9 and S9 Plus features
Mar 29•CNET UK podcast 537: Huawei goes colourful and Andy secures his home
Mar 25•Web Foundation CEO: Getting the whole world online is our goal