“The definitive paintbrush for iPad,” writes Ellis Hamburger of theverge.com in their review of the Sensu brush.
The Sensu Brush looks like a Space Pen, but when you pull off its cap, it reveals itself as a paint brush / stylus hybrid. Attach the cap to the stylus’ other side, and the tool instantly becomes the longest entry in my stylus round up. Even if you hold the Sensu by its rubber grip, it still works (unlike with the Pogo Sketch Pro).
As promised, the brush head on the Sensu is highly conductive and requires little exertion to use. Since iOS recognizes a touch input as a circular mark and not a brush stroke, using the brush feels a bit odd, but it’s still a lot of fun to use in specific scenarios (like shading or filling in a background). Since you can extend the Sensu using its cap, holding the stylus at an angle feels great. With a conventional rubber-tipped stylus, shading or filling in can be tiring, and will likely wear down a the tip much quicker.
The Sensu Brush is exactly what it sounds like — a brush. While its rubber tip is decent, you should buy this thing if you want a paint brush for your iPad. To that extent, the Sensu Brush is a killer solution, but at $39.99, it’s definitely not for everyone.
The Sensu is one many stylus that are reviewed, you can check the complete set of reviews here (To navigate between reviews use the links on the left).