The Sensu is simple and elegant, with a 3.6-inch-long cap/handle that conceals whichever of the two included capacitive tips you’re not using. Closed, it’s a 4.5-inch touch screen stylus with the standard black, rubberized, slightly spongy tip we’ve seen in many styli before. It’s solid and just long enough to use like a pen, and alone, it’s a suitable, if slightly overpriced, as a capacitive touch-screen stylus. If you pull it out of the cap and flip it around, though, the stylus completely transforms.
With the stylus hidden securely in the long cap, the Sensu grows to 7.2 inches and gains a slender, rubberized grip and a bristle paintbrush that works on your tablet’s touch screen. The grip and the long cap lets the Sensu rest comfortably in your hand like an actual paintbrush, and the tip itself feels perpetually flexible, like it was a real paintbrush freshly dipped in water.
The paintbrush tip felt soft and responsive when I tested it on an iPad. I did some doodling in ArtRage, and while there was some slight lag in the drawings as I performed fast brushstrokes, the app followed my motions perfectly. Since it’s a capacitive touch screen, the iPad’s display (and other mobile devices’ touch screens, with which the Sensu can also work) can only detect inputs as points, not as entire areas. So I couldn’t “paint” in the same way I could with an actual brush; the point the touch screen detected was consistently in the center of the brush regardless of whether I was tapping the screen or pressing down to fan out the bristles. This is a limitation of the screen technology, and not a problem specific to the Sensu.