Modern day devices, such as phones, can often be used with a stylus to accurately navigate through menus, send messages etc. Today, the term stylus often refers to an input tool usually used with touchscreen-enabled devices, such as Tablet PCs, to accurately navigate interface elements, send messages, etc. This also prevents smearing the screen with oils from one's fingers. Styluses may also be used for handwriting; or for drawing using graphics tablets.
Many new phones have a built-in stylus which tucks in behind the back cover. Some styluses may extend and contract into small, pen-like cylinders, which are easy to put away.
Styluses come in both passive and active versions. A passive or capacitive stylus is a stylus that acts just like a finger when touching a device screen. There is no electronic communication between a passive stylus and a device. The device cannot tell the difference between a finger and a passive stylus.
An active stylus includes electronic components that communicate with the touchscreen controller on a device. Active pens are typically used for note taking, on-screen drawing/painting, and electronic document annotation. As before, the stylus is pointed or rounded at one end and is made to fit in the grip of a hand comfortably. These styluses can be found in many different styles.
Palm Rejection: Since many modern tablets make use of multi-touch recognition, some stylus and app manufactures have created palm rejection technologies into their products. This works to turn off the multi-touch feature allowing the palm to rest on the tablet while still recognizing the stylus.
Haptic Stylus: Other than the types above, a haptic stylus is a stylus that simulates the realistic physical sensations on digital surfaces (e.g., tablet computer, smart phone etc.) which can be felt in handwriting tasks on paper. The sensation is sometimes enhanced by the combination of auditory and tactile illusions, such as RealPen.
What are the best Stylus Pen
Check out this Verge Video and learn what are Stylus Pen and even further what is the best iPad Stylus.
#1 Adonit Jot Touch
Adonit builds tools to break down barriers between thought and creation. After starting small in garages and spare rooms, a successful Kickstarter campaign helped launch Adonit to the forefront of the stylus industry. Now, with customers in over 90 countries, they continue to lead by building innovative tools for digital artists like the Jot Touch with Pixelpoint technology.