I tried using a stylus pen "Adonit Pixel" that can write a slurl on the iPad or iPhone screen with 2048 strokes pressure sensation - GIGAZINE
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Amazon.com: Adonit Note (Gold) Stylus Pen for iPad Writing/Drawing with Palm Rejection, Active Pencil Compatible with iPad Air 4/3rd gen, iPad Mini 6/5th gen, iPad 9/8/7/6th gen, iPad Pro (2018-2021),11/12.9" : Cell