Customer Reviews

I LOVE this pen, and all the DX UM-151s. I teach at the U of Utah, and this is the pen I use to grade all of my student's papers. The tip is fine enough that I can make little corrections in the margins and between lines; the "Bordeaux Black" color is red enough to seem like it's chastising my students for their silly mistakes, but not so red that they feel violated (turns out that bright red pens have a negative effect on students); and the smoothness is unlike any other pen with a tip this fine. The "blotchiness" that another reviewer mentioned is, for me, more like a fountain pen's "flair" once you get more used to it (perfect for writing kanji). Finally, one of the greatest features about this gel pen compared to every other gel pen I've used is the speed at which it dries--it's a smooth, fine gel ink that won't smudge. Awesome, awesome pen. Also great for writing in the margins of books.

I absolutely love these pens. I have the black and the bordeaux black in 0.38. The line thickness in perfect for editing small text and writing notes. The tip is very sturdy yet delicate. I love the feel of this pen. Good weight--not too heavy nor too light--and the plastic barrel fits my grip rather well. It is a delight to write with and I LOVE the bordeaux black color, in fact it might be my favorite color at the moment. My one complaint, and it is very annoying, is that the ink frequently runs dry and I need to scribble on scrap paper to get it going again. This is the one reason why this pen hasn't surpassed my other two favorites: the Hi-Tec C and the Slicci 0.4 pens.

I absolutely love everything about this pen and will keep a supply on-hand at all times.

Fantastic color, so elegant and the gel ink runs so smooth! viva jetpens!

This pen could be my new favorite. It's comfortable to hold and writes extremely smoothly, and the ink is a beautiful, unusual, but dignified burgundy color (I mean, bordeaux!). I just wish there were refills available!

Great color, I think that this is my favorite line of capped pens, amazing colors and easy to hold and write.

Amazing reddish/wine black color, it allows you to write lengthy in a notebook and adding a slight bit of color without being very flashy.

This is a wonderful pen. It's a little more fine point than I normally use, but still easy to write with in those spots where you need a very fine line. Ink flow is perfect, in spite of the fine point. The ink color, which is a perfect mix of red and black, was a revelation to me. It's a subtle color, very pleasing to the eyes. The pen is well made also, and feels good in the hand. Well worth the money!

A terrific color that is truly versatile -- simultaneously professional and fun. I use for taking minutes, editing, as well as for spicing up a party invitation or note. A reliably designed pen that has yet to skip, bleed, or go on a lunch break!

I love these pens - but this is one of my favorite colors. Not quite black, not quite red - it's a good in between but still professional enough to use at work/school. It’s very comfortable to hold and didn’t strain my hand after extensive writing. I wish the grip was a little longer, and extended to the end of the barrel because I grip my pen quite low, but I can manage. A sturdy, well built nib that is still surprisingly smooth and not at all scratchy. The ink dries very quickly so very low risk of smearing! Overall, I am a big fan of the Uni-ball Signo DX line.

First the good: I love the color, and the ink-flow. It has a nice crisp line that looks good on almost any paper.

The bad: I write with my fingers really close to the base of the pen, and since the grip is at least 1/2" away from the nib, I end up getting cramps in my hand and the quality of my handwriting is diminished.

I wish they made Bordeaux black in a Pilot RT UM-138!

Love this pen!
Writes surprisingly smooth. The ink flow is good and the line width consistent. I've not had any problems with blotchiness, skips or blobs. The color is fantastic! It doesn't leap off the page and smack you in the face, just a great red/maroon. I really like the tip as well. I use a lot of pressure when I write and some of the smaller tipped pens feel really fragile under the pressure. This one holds up like a champ. I use this pen for underlining and writing in my Bible and it is one of the very few that do well in that capacity. The ink does not bleed through the super-thin pages and the pigments keep it from fading or migrating through the paper over time like ballpoint pen or dye based gel inks. The 0.38 mm size dries quickly enough that I haven't had any trouble with smearing. Only negative point is that the cap doesn't snap on very tight and I hate chasing a pen cap under the desk. I wish Uni-ball made these the same as the retractable 207 Uni-ball pens.

This pen is fabulous! I love the fine line and I don't have problems with skipping or smudging. The color is a pretty and vivid burgundy. It is a breeze to write with. The pen is the perfect weight, and the rubber grip makes it comfortable to write with. I wrote a thank you note with this pen and the recipient liked the ink and line so much, that she asked where she could buy the pen (I told her JetPens.com, of course!). My 9 year old son loves the pen too; he wants one of his own. I recommend this pen if you like a fine line and a vivid, unique color. I will purchase this pen again, for my son, my friends and myself.

Love this color. I'm not a fan of 0.38 tip because I find it too fine for me. However, this color is not available with 0.5 tip, so I tried it. I'm amazed to discover that it's not as fine as what I thought. The tip works perfect for me.

LOVE the colour and amazing smoothness! Its not a showy colour but really pops off the page.

Overall, probably the best red-black gel pen on this site as of now. A little blotchy, and a little more purplish than red, but overall, a solid, comfortable performer. My main go-to pen for black-red.

So sad about this pen. I liked the flow of the ink, but after using it once, it leaked all over the place. Won't buy this model again.

I think I'm in love with this pen. I'm a huge fan of the .25mm Slicci, and this pen--this color in particular--gives it a run for its money. Ink flow is smooth, pen is well-balanced, and the color is phenomenal. You know how a lot of purple pens end up looking kind of fuchsia-ish? This pen, on the other hand, is a true, deep, royal purple. I adore it. I also got the Black, Bordeaux Black, and Brown Black, and I love them all for the same reasons (although the lavender black is my favorite color). There is a noticeable difference between this .38mm line and the Slicci's .25mm line, so I won't be using this one for extreme detail work, but there's nothing wrong with having different instruments for different purposes. Excellent pen!

I love this pen. It writes smoothly, and the ink is a deep, pine green that looks great no matter where I've used the pen. The color is subtle (it doesn't scream "I'm GREEN!") but still looks unique.

I find the 0.38 mm version to be a sweet spot of fine, concise lines and ease of writing. The blue black ink is a fantastic alternative to the usual black but still professional in appearance to be used in a business setting.

This is a very bright pink! Almost like a hot pink. I like the 0.28 Uni pens. I think these are quickly becoming one of my favorites.

This is the sweet spot. The .38mm is not too thing or too bold. I found .4 to be too thick and .3 to be too thin. 0.38mm seems to be the sweet spot.

Also, as far as the color, its just the right amount of blue where it doesn't hurt your eyes but its enough blue to distinquish it from black.

Its the best!

This pen has a stronger tip and better ink than others. I've tried the Hybrid Technica and Hi-Tec-C pens and I disliked how fragile their tips were, you feel like you're going to break it if you write too fast. In addition, the ink from this pen dries significantly faster than the others', which is really nice if you're going to be writing on a semi-glossy surface like taking notes in a textbook, writing a card, or writing left-handed. After I tried this pen, I never bothered trying another manufacturer's again.

this pen is a disappointment. the ink flow is great but it's so scratchy. i can't bear to use it, almost feels like nails across a blackboard. i've used uniball signo bit 0.18 and that was not scratchy at all so I have trouble blaming the scratchiness on the pen being 0.28. i do find the tip very durable and the barrel size is very comfortable.

it would have definitely been my go to pen for taking important class notes since it's waterproof and coffee/water spills are way too a frequent occurrence on my desk but the scratchiness of it is unbearable.

this color isn't as pretty as in the picture; it's almost maraschino cherry-colored. i'm kinda disappointed by the ink flow, especially b/c it's .28, sometimes i have to write over what i've written a couple times for it to show up. definitely wish i'd gone with a .38 of this pen in a different pink.

I write incredibly small and the DX in Brown Black (0.38 and 0.28) is my signature pen. I've tried Hi Tec Cs (in 0.25, 0.3 and 0.4), Pentel Sliccis (in 0.25 and 0.3), and Zebra Sarasas (0.4). Each is a very different writing experience and each have their strengths. For every day writing, though, my heart belongs to Signo DX.

The tip is very strong; some say it's scratchy, but that makes me think of an unpleasant sensation. Instead, I'd say it definitely feels firm and precise (but not grating). Unlike Hi Tec Cs, they don't need to be "primed" by scribbling a bunch before the ink flows evenly. The brown-black ink is gorgeous; it's dark enough that it doesn't look gimmicky or childish (though I love those as well :D) but just brown enough that it looks subtly different and has a rich warmth to it.