The Lenovo Yoga C940 is a great device, but does it come with a digital pen or stylus? Here's what you need to know.

The Duet 3 uses an in-cell display panel, which unfortunately is not compatible with USI 1.0 pens, so the USI stylus support is nonexistent until Lenovo's USI 2.0 stylus arrives.

Google, Dell & Lenovo will let you use their digital pens across devices.