I’m not a fan of ballpoint pens. Their refills tend to streak and glob, the ink they use isn’t ass dark or vibrant as their gel ink and rollerball counterparts, and something about them (probably the lightness and inconsistency of the refill) makes me grip them with “the grip of death,” which inevitably brings on hand cramps and pain. They are, however, useful at times, so I am constantly on the lookout for new and better ballpoint pens and ballpoint refills.

Enter the Uni Jetstream Edge, a ballpoint pen with a strikingly modern design and the world’s first 0.28mm ballpoint refill (there’s also a 0.38mm refill option but I won’t review it here).

I love the design of this pen. The body is plastic, but the grip area is metal and relatively wide, which makes for a very well balanced pen. The bent wire shape of the clip adds to its modern and clean aesthetic, and I like that chose to make it red and not black or silver in the white edition of this pen. The clip looks like it would be a fun and springy fidget tool, but it’s quite inflexible and immobile. That’s great if you plan on using it to clip it to a shirt pocket, but the unusual clip shape means that clipping it to paper will likely crumple and even tear the paper. I don’t normally clip my pens to things, so that’s not going to be an issue for me, but YMMV.

The Jetstream Edge grip section is metal and round, unlike the plastic, faceted pen body. There are grooves carved into it that make it comfortable to hold, and the refill sits very snugly in the pen sleeve. This is a pen that’s not going to rattle while you write.

The 0.28 mm Jetstream ballpoint refill has been designed so that the tip won’t suffer the usual “bent out of shape the moment you breath too hard on it” fate of the Pilot Hi-Tec-C refills. Its sturdy but still keeps a tapered, fine tip, which means that you can use it with rulers and templates if you so desire.

The refill the Jetstream Edge uses is the SXR 203-28 for the 0.28 mm or the SXR 203-38 for the 0.38mm tips size, although it appears that can also accept the Uni SXR-80 line of refills used for Uni-ball’s multi-pens. If so, that could open a wider range of refill colours and tip sizes.
The original, SXR 203, refill is very slim, which would have been problematic if it was a gel ink refill (you’d have written it dry in a day), but shouldn’t be a problem with a ballpoint refill. That being said, I doubt that this refill will last as long as a standard Parker one, not to mention the Caran d’Ache Goliath.

While Uni-ball brags that the Edge uses the first 0.28mm ballpoint refill in the world, there are other brands that use ultra fine ballpoint refills not far from it in size. My Midori (now Traveler’s Company) Brass Ballpoint pen has a refill that is around that size, so I thought I’d compare the two.

Here are the pen tips side by side. The barrels, grips and cones are very different but the refill tups are very much alike.

Below you’ll find a writing sample of the Jetstream Edge, and one of the Midori/Traveler’s Company Brass Ballpoint for comparison. Perhaps unsurprisingly, being a Jetstream refill, the Edge’s refill is better than the Midori’s even though it is slightly thinner. It lays down a more consistent and slightly darker line (although nowhere near as dark as a gel ink pen’s line).

I wrote seven full A5 pages with the Jetstream Edge, to see how consistent the line is over time, and to see if it would cause hand cramps after prolonged use. While I was writing I made a concentrated effort to keep a light grip on the pen. The barrel design helped with this, and the pen’s light weight and front heavy balance made it nice to hold and write with. But the Jetstream Edge is a pen with a sweet spot, not unlike certain fountain pens. Angle it too much and the refill starts to skip, so you need to write with the pen as vertically as possible. That slightly awkward writing angle may have been the cause of my hand cramps, but whatever the cause may be, this is not a pen that will work for long writing sessions for me.

So, do I recommend the Uni Jetstream Edge? If you’re a ballpoint fan and an ultra micro tip fan, then yes. Otherwise, there are cheaper and better ballpoint pens out there, even within the excellent Uni-ball Jetstream line.
Will I be using the Jetstream Edge? Yes, although not for long writing sessions. I love the line it lays down, and I like the aesthetic of this pen. Then again, I’m a fan of the Pilot Hi-Tec-C…