Apple Pencil 2nd Generation

The Apple Pencil delivers pixel-perfect precision and industry-leading low latency, making it great for drawing, sketching, coloring, taking notes or even marking up emails, and more. And it’s as easy and natural to use as a pencil. The Apple Pencil also features an intuitive touch surface that supports double-tapping. So now you can change tools without setting it down. It also features a flat edge that attaches magnetically for automatic charging and pairing

The first-generation Apple Pencil has a removable cap that exposes a Lightning connector, which is used to pair and charge the Pencil. The second-generation Apple Pencil pairs and charges magnetically and so doesn't use a Lightning connector. (It's also about a half-inch shorter because of this).