The WiWU Pencil for Samsung Galaxy Z comes with 1.5mm fine nib and 4096 levels of pressure sensitivity, it can be as natural and accurate as writing on paper. It has a multi-function button that supports one-click operation for easy access. Press the button to bring up the air-window command menu With the mobile phone automatic induction recognition function, just move the pen on the "hovering struction" icon on the screen, and then click the button to call functions such as smart selection, script writing, real-time messaging, and so on. The professional design of the WiWU Pencil makes it natural and comfortable to hold in your hand, making it easy for you to write for a long time, and the pen is small, exquisite, and easy to hold. The WiWU Pencil for Samsung Galaxy Z comes with a one-month warranty.