For the iPad Air 5, you can use the Apple Pencil (first generation) or Apple Pencil (second generation) as a pen. Both pens are compatible with the iPad Air 5 and offer excellent accuracy and responsiveness. The Apple Pencil (first generation) works with all iPad Air models, while the Apple Pencil (second generation) has more features and improvements, such as magnetic adsorption and wireless charging. No matter which pen you choose, you'll get a great writing and drawing experience on the iPad Air 5.