Automatic palm rejection, accurate placement of a fine point and wide range of pressure input makes active digitizer pens popular choices indeed.

With that said, if your device doesn't have an active digitizer screen, you won't be able to take advantage of an active digitizer pen even if your device comes with a stylus pen. Devices such as the Microsoft Surface Pro, Samsung Note and the newer Apple iPad Pro series have an active digitizer. The Galaxy Note series is the only Android device series with active digitizer styli so chances are that if you own Android device other than the Galaxy Note, it will have a capacitive touch screen.
In fact, you can get a dedicated precision disc stylus for your Android device such as Adonit Droid micro precision disc stylus, which is made exclusively for Android high definition touchscreens.
The clip is a proper metal grip that works better than the Pro 3 at holding the pen in place. The cap on the Droid while not as convenient as the magnetic cap on the Pro 3, is certainly more secure as it's a screw-in cap so no chance of losing the cap.
The fine point precision experience is nicer thanks to the dampening feature in the tip which creates less resistance when writing. Saying this, just like the other disc styluses, precision writing is better if your device doesn't have a screen protector which does decrease the touchscreen sensitivity of the device.
While the Adonit Droid may not be as sensitivity and accurate as a stylus with digitizer like the Samsung S Pen, handwriting and swiping gestures with the Droid disc stylus are very efficient, plus the Droid doesn't need pairing with your device nor does it need batteries. Check out the review of the Adonit Note-M Mouse Pen.