Choosing fountain pen paper & notebooks is less about finding one universal winner and more about matching the page to your routine. Do you want open space for long entries, lists, or sketches, or a compact ruled journal that keeps notes orderly? Yu-sari and LEUCHTTURM1917 approach that choice differently. Both are aimed at fountain-pen writing, but Yu-sari emphasizes the paper itself while LEUCHTTURM1917 emphasizes a pocket-journal system.
Quick verdict
Pick Yu-sari when an open writing surface and a paper-led experience matter most. Pick LEUCHTTURM1917 when line guidance, organization, and a carry-friendly format matter more. The choice is straightforward: favor the notebook whose layout matches your handwriting habits, then use the price difference as a tiebreaker rather than the main reason to choose.
Price and format comparison
| Notebook | Price | Listed layout / format |
|---|---|---|
| Yu-sari A5 | USD 19.69 | Plain A5 |
| LEUCHTTURM1917 A6 | USD 22.94 | Ruled A6 pocket size |
Where each product wins
Yu-sari wins for paper feel
Yu-sari pairs an ultra-smooth texture with quick-drying properties and thick, egg-shell-colored paper, and it is intended for fountain pen or rollerball ink. That combination is the clearest fit for writers who want the ink experience to be part of the notebook choice rather than an afterthought.
LEUCHTTURM1917 wins for organization
LEUCHTTURM1917 has 185 numbered pages, two page markers, detachable pages, and a pocket, giving it a clear system for returning to important notes. Its 5.91 × 3.55 × 0.5-inch dimensions align with the pocket-size format, making it a natural fit for carry-along journaling.
Product notes
Yu-sari Fountain Pen Notebook

Yu-sari Fountain Pen Notebook suits writers who want a Japanese-made notebook with an open interior. It is intended for fountain pens, and its thick, egg-shell-colored paper gives the pages a distinct visual character. The plain layout leaves room for prose, lists, diagrams, or mixed notes without printed lines directing the page. That openness is also the limitation: anyone who relies on consistent ruled guidance will need to create their own structure. The format suits more than one kind of entry, making it a practical choice for general-purpose writing. Choose Yu-sari when a freeform journal matters more than built-in line guidance.
LEUCHTTURM1917 Pocket Journal

LEUCHTTURM1917 Pocket Journal fits a more arranged writing routine. Its faux-leather cover, ruled interior, detachable pages, and Fountain Pen Friendly: Yes marking combine practical structure with a defined look. Its 80 g/m² paper is intended to help prevent bleeding. The limitation is that paper specification: shoppers specifically seeking the thick paper used by Yu-sari may prefer that notebook instead. At 5.91 × 3.55 × 0.5 inches, its compact scale suits quick notes, while writers wanting a broad surface for long entries may prefer Yu-sari's A5 format. Choose LEUCHTTURM1917 when journal organization is more useful than maximum flexibility.
Final choice by use case
For freeform journaling, lists, sketches, or a paper-led fountain-pen routine, choose Yu-sari. For compact, organized notes, choose LEUCHTTURM1917 because its numbered pages and page markers support that workflow. Yu-sari costs USD 19.69; LEUCHTTURM1917 costs USD 22.94, a $3.25 difference. If both use cases fit, let the layout decide rather than treating the price gap as the main differentiator.