Q. Is handwriting feature available in Samsung Galaxy note 5?
Ans. Yes, it is available in the smartphone.
These are the steps to enable handwriting feature:
1.On your Android phone or tablet, open any app that you can type in,
like Gmail or Keep.
2.Tap where you can enter text.
3.At the top left of the keyboard, tap Open features menu.
4.Tap Settings.
5.Tap Languages.
6.Swipe right and turn on the Handwriting layout.
7.Tap Done.
You can refer to this link also.
https://support.google.com/gbo....ard/answer/9108773?c

Handwrite on your keyboard - Android - Gboard Help

You can handwrite words on your keyboard to enter text.
Note: Handwriting is not available in all languages.
Turn on Handwriting On your Android phone or tablet,