Gesture navigation on the Samsung Galaxy A7 (2018) could be part of Sammy's Android Pie update

The Samsung Galaxy A7 (2018) features a gesture navigation system that can replace the usual Android software navigation keys. Discovered by SamMobile, the option will allow you to hide the navigation bar and start using gestures to go "home," view recent apps, and go back. Or, Galaxy A7 (2018) users can decide to simply add a dot to the navigation bar and tap on the dot to make the bar disappear. Swiping up from the bottom will make the navigation bar reappear. 

If you choose to go with the gesture navigation, you might want to make sure that the gesture ...

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