Korean vs Japanese Bullet Journal Supplies: The Honest Comparison
The bullet journal community tends to default to Japanese stationery. There is a reason for that, but it is not the whole story. Korean supplies have caught up in some areas and have always had distinct strengths in others. Here is where each wins and why.
Paper Weight: The Measurable Difference
Paper weight is not the most glamorous specification, but it is the one most likely to affect your daily experience. Japanese bullet journal staples — Hobonichi Techo (52gsm), Midori MD (70gsm), Traveler's Notebook refills (64gsm) — lean thin. The paper is chosen to keep books compact and light, and the trade-off is that bleed-through with wet inks is an accepted characteristic rather than a flaw.
Korean notebooks occupy a different standard. ICONIC's Numo uses 80gsm as its baseline; Morning Glory's planner range and most branded Korean notebooks run between 70gsm and 90gsm. The result is a page that shows less through-bleed with fountain pens, absorbs gel ink more completely, and does not carry the faint print-ghost from the other side that is common with Hobonichi pages.
For writers who use Tombow brush pens, fine liners, or fountain pens with saturated inks, Korean paper handles the load better. For those who use a single pencil or ultra-fine ballpoint, the weight difference is largely irrelevant.
Ink Behaviour: Pilot Juice vs Monami Olika
The Pilot Juice Up at 0.4mm is arguably the benchmark for precision gel writing. The needle tip delivers consistent, thin lines with a slight drag that gives good tactile feedback. Dry time is quick. The ink is dense enough to resist smearing from a left-leaning hand passing over it a few seconds after writing.
The Monami Olika at 0.5mm writes wetter. The flow is more generous, which means richer-looking strokes but slower dry time — noticeable for left-handed writers and anyone who closes a notebook before the ink has fully set. The Olika's ink palette skews towards the type of deep, slightly warm blacks and navy-blacks that photograph well.
Neither pen produces superior results in all conditions. The Juice Up wins on precision and dry time. The Olika wins on character and richness. People who write small and value line control tend to prefer the Juice Up; people who write at normal scale and want ink they enjoy looking at often prefer the Olika. Both are worth trying before committing to a preference.
Grid Standards: 5 mm vs 4 mm
The default Japanese grid standard for bullet journals is 5mm. This is the measurement used by Leuchtturm1917, Rhodia, and almost every Western brand that entered the bullet journal market after Leuchtturm. It suits normal-to-large European handwriting and allows for comfortable weekly spread layouts without crowding.
Korean notebooks default to 4mm. ICONIC's Numo uses 4mm dot spacing; most Korean grid notebooks follow the same standard. This reflects the smaller average character size used in Korean writing, where fitting multiple characters per grid square at 5mm would waste space.
For bullet journalers with smaller handwriting, the 4mm grid is genuinely useful. It allows more content per page and finer visual detail in habit trackers and monthly spreads. For people with average or large handwriting, 4mm feels cramped and the visual structure the grid provides disappears when lines of text overlap cells.
Check your natural handwriting size before buying a Korean dotted notebook. If your lowercase letters are consistently under 3mm tall, the 4mm grid works well. If they run larger, stick with 5mm.
Aesthetic: Muted vs Maximalist
This is the area where the cultural difference is most visible. Japanese stationery tends towards restraint — craft paper tones, minimal prints, subdued typography. The Hobonichi design philosophy is an extreme version of this tendency, but it runs through most premium Japanese stationery.
Korean stationery covers a wider range. The character-economy brands — Kakao Friends, Line Friends, Sanrio collaborations — produce maximalist, character-heavy stationery aimed at a younger market. But the brands aimed at adult journalers, including ICONIC, Morning Glory's premium lines, and Ardium, tend towards muted solid colours and clean design that is not far removed from the Japanese aesthetic. The difference is in the details: Korean notebooks often add small graphic elements or soft watercolour illustrations that Japanese equivalents would omit entirely.
For a bullet journal that you want to look clean and consistent, both traditions produce suitable notebooks. The Korean tendency towards slightly warmer palettes and occasional decorative details suits people who want their journal to feel personal without being chaotic.
Hybrid Setups That Work
There is no rule requiring you to commit to one tradition. Several setups combine both effectively.
Using a Korean notebook with a Japanese pen works well for most users. The ICONIC Numo and a Pilot G2 or Juice Up is a reliable daily-use combination. The 4mm grid limits some of what you can do with large weekly spreads, but the paper handles the Pilot ink cleanly.
Using a Japanese notebook with Korean pens also works. The Hobonichi at 52gsm struggles with Monami Olika gel ink — it bleeds through badly. But Monami fine liners and the Plus Pen 3000 write acceptably on Hobonichi paper, which is famously tolerant of certain ink types.
Where hybrid setups tend to fail is when pairing heavy Korean inks with thin Japanese paper, or when expecting a 4mm Korean grid to replicate a 5mm Japanese spread. Understand what you are working with, and the combination tends to be fine.
FAQ
**Is Korean stationery cheaper than Japanese stationery for UK buyers?** At the mid-market level, Korean stationery tends to be slightly cheaper when purchased through YesStyle or Amazon UK. Premium Japanese stationery (Traveler's, Hobonichi) is priced higher than most comparable Korean products. Budget Japanese stationery (Muji) and budget Korean stationery are broadly comparable.
**Which bullet journal pen works on both Korean and Japanese paper?** The Pilot Juice Up 0.4mm is the safest choice. It writes on thin Japanese paper without excessive bleed and handles Korean paper cleanly. Among Korean pens, the Monami Plus Pen 3000 is safe on most paper weights.
**Are Korean stationery products available in UK shops?** Some Korean supermarkets in major UK cities carry stationery. Online is the most reliable source — Amazon UK for pens, YesStyle for notebooks and planners.
**Does ICONIC make B5 or A4 notebooks?** Yes. The Numo range includes B5 and a few larger formats, though UK availability of non-A5 sizes through YesStyle is intermittent. The A5 dotted is the most consistently stocked format.
