Write naturally on your Surface Duo using Surface Slim Pen (not included) or Surface Pen (not included). Use either one to take notes and jot down ideas. To get started, pair your pen with your Surface Duo over Bluetooth.
Swipe down from the top of the screen, then tap and hold Bluetooth in quick settings.
On the Connected devices screen, tap Pair new device.
Press and hold the top button of the pen for 5-7 seconds until the LED light flashes white. This puts the pen into pairing mode.
Tap Surface Slim Pen or Surface Pen to pair your pen with your Surface Duo.
Now you’re ready to write in apps that can use pen and ink. For example, open Microsoft OneNote on your Surface Duo, start a new note, then write with your pen. To learn more about OneNote, see Microsoft OneNote for Android on the Microsoft Support site.