Compatible manufacturers: Lenovo. Models: ThinkPad X13 2-in-1 Gen. 5, ThinkPad Yoga X13 Gen. 4. Features 4096 levels of pressure sensitivity. AES 1.0 protocol supports Windows 11. Fast charging in 15 seconds for 85% battery life - up to 69 minutes of active use on a single full charge. Integrated storage and charging in the notebook. The integrated Lenovo pen for the X13 Yoga Gen 4 is an ideal input solution that offers users 4096 pressure levels for precise content creation. This pen is uniquely designed for the Lenovo X13 Yoga Gen 4 and can be stored in the dedicated pen slot. While stored, the pen charges, providing the user with up to 69 minutes of active use on a single full charge. Active stylus with extended functionality. This active stylus allows for highly precise inputs on touch displays. It is compatible only with certain devices and, unlike passive styluses, features electronic components that enhance its functionality.