I have reviewed many Pilot Hi-Tec-C Coleto multi pen barrels over the years. It is the first multi pen I fell in love with and is still the best in my mind. While the ink cartridges haven’t changed, new barrel designs hit the market frequently. The Coleto Smart 3 is the most recent I have tested out.
Compared to the older Coleto barrel designs the Smart 3 is an excellent visual upgrade. The clear plastic grip area is the biggest change, allowing you to see a large section of the ink cartridges. It is eerily similar to the original Uni Style Fit.
The updated look is great but that change comes with a slightly wider barrel diameter. I don’t have the exact measurements, but this barrel looks and feels wider than the standard 4 Color Coleto barrel. That, to me, makes it less desirable. If I can fit four cartridges in a narrower barrel I am going to take that more often than not.
In the end it is only $2.50, so you don’t have to break the bank to try it out. If you have a few spare Coleto refills laying around it is worth a shot.