Questions about Neolab N2 Smartpen

Exit length: I am homescooling and have a laptop (Windows 10) and 2 screens. I edit and share content with Onedrive/one Note. To simplify the drawing of notes and examples, I am thinking about a tablet. Also to learn and work on the go in One Note. Since I have a Samsung smartphone, I am thinking about the Tab s7... Since all the programmes and apps are from Windows, I don't rule out the Surface Tab. What is the difference between the two tablets and which one would suit me better? Do I still need a smart pen to draw and take notes? or does it work without the tablet? Thank you and greetings christoph