Nite Ize Inka Mobile Clip Stylus Pen - Black Retractable Stylus for Touchscreens - Perfect for iPad, iPhone, Samsung Tablets & Smartphones - Retail Packaging

Just what I was looking for, a pen small enough to carry in a pocket, with ink that will write on anything.I also have a Fisher Bullet Pen, and this item has a few differences.First off, the ink. While they are both very good at writing at awkward angles, and such, I give the Fisher the edge on being able to write better on greasy/dirty surfaces. Keep in mind, both the Inka and Fisher are way, way better than a standard ballpoint on paper that is wet, dirty, greasy, etc, the Fisher seems to be just a little more 'readable' on really hard to write on surfaces. Either work perfectly on anything resembling paper, though. The Fisher also seems to have a larger ink refill, so it 'should' go longer before needing the cartridge replaced.However, overall, I think that my Inka will replace my Fisher as my 'favorite' EDC pen. First off, the cap(s) twist off and on, which is more secure than the Fisher's friction-fit cap. They both use an O-ring to seal the cap in place, but the Inka has the extra security of threads to hold the cap in place. The Fisher relies on the friction of the cap against the O-ring to hold the cap in place. The 1/2 or 3/4 turn it takes to remove the cap is quick and effortless. The pocket clip on the Inka also keeps it from wanting to roll away when placed on a table that has any kind of slope to it (which is most tables I've run across). The cap snaps onto the end of the pen when in use, which both gives the pen a more 'normal' length when in use, and still keeps it from rolling away. I know Fisher makes pens with clips, but mine doesn't have one, so I'm just comparing to what I have. Size-wise, they are about the same length when in use, but the Fisher is shorter when capped by about 1/2 inch. Diameter is very similar, except that the clip on the Inka makes it bigger in that area. The clip is very unique, in that it not only functions as a standard pocket clip, but also has a small eye at the top, where a mini 'S' shaped mini double caribiner that comes with the pen can be attached. One side of the S clips in the eye, and the other can clip onto a zipper pull, belt loop, etc, to keep the pen close at hand. When needed, you can simply unscrew the pen part from the cap. The pen body without the cap, is just long enough to be usable, although if I had quite a bit of writing to do, I'd probably unclip the cap from the caribiner, and snap it on the back of the pen, for a more 'normal' length.As a nice little extra, the end of the pen opposite the writing end, has a stylus built into it, which works well with a tablet or smartphone. The caps are interchangeable to either end of the pen, meaning that you can have the cap with the clip on it covering either the stylus, or the writing end, and there is a small (weather tight) cap that screws over the other end. I really like that both ends are covered by an O-ring sealed cap, as it makes it weather proof, and also keeps pocket lint and dirt out.I still carry the Fisher, when I want the smallest (folded) pen, or for writing on really challenging surfaces, but for 90% of my EDC uses, I have to say I prefer the Inka. I noticed that they also make the Inka in a slightly smaller version, without the pocket clip. That is a different version than I have, but with the same ink cartridge.One last thing of note, the color listing for the pen says 'Black' and that is the color of the pen body. The ink itself is blue. For some users, that may be worth noting.