I have both an S9 and a BlackBerry Q10 on me every day. The BB10 OS, even though its now defunct, was designed in a way that it is FAR easier and more practical to use. I really, really hate the Android interface as a result.
1: BlackBerry hub is a lot nicer to view messages
2: Smart use of Bezel gestures makes it much easier to actually interact with the phone:
-If you want to access the hub while using an app, you take your thumb from the bottom of the screen and swipe up and to the right. The interface is very forgiving of where you swipe, you can do it without even looking, yet you wont accidentally do it either. If you don't want to fully enter the hub and just take a peak without leaving your app, just do a partial swipe.
-If you want to view all your running apps, you swipe up from the bottom of the screen to the middle of the screen, and voila , you get a tile arrangement of your running apps (easier to view than a Rolodex), as well as phone and camera access. And you are also less likely to lose track of what windows you have open. I find lots of peoples android phones have like 30 windows open - this is a fault of its interface.
-If you want to access your apps, swipe up from bottom bezel (shows running apps), and then swipe left, now you can view all your other apps.
-Every app is expected to have its settings menu accessible by swiping down from the top bezel.
There are no silly little cumbersome function buttons at the bottom like Android has (the back/home/apps buttons). Smart use of bezel gestures make this unnecessary.
Everything can be accessed easily in a simple, comfortable gesture with your thumb. As a result, it is a lot faster to use day in day out. And it is not as cluttered as Android.
I am sad the whole world chose Android. It's a crappy interface.