I have my 14 year old son gave this pin for his mini iPad and wants to review it so: The "pen" is very useful! It is small and may with you everywhere, yet it is still handy. I do not know if you absolutely need such a device but it's nice not having to always take with his hand on the touch panel, since this sometimes will quickly dirty. I have it on the iPad mini and tested the Sony Experia. It is better for the iPad mini, I do not know exactly why that is. This "pin" to buy a cell phone, is not worthwhile, because it does not respond as well. It is mostly simple little things with your finger to tap as with the stylus. I give 4 stars because I think that the pen is a great improvement compared to the Fingergewische, but is nevertheless not necessarily needed.