Hobonichi Original vs Cousin vs Weeks: Finding Your Ideal Techo Size

Choosing the right Hobonichi Techo comes down to balancing your daily writing volume with how you prefer to carry your planner. The Japanese brand’s three flagship models—the A6 Original, the A5 Cousin, and the slim, pocket-sized Weeks—each serve distinct planning styles and lifestyles. If you want a highly portable daily journal, the compact Original is often the ideal starting point. For those who need a comprehensive desk planner with a dedicated weekly layout alongside daily pages, the larger Cousin provides the necessary space. Meanwhile, the Weeks appeals to anyone seeking a lightweight, horizontal weekly overview that slips easily into a pocket or small bag. Understanding how these physical sizes and internal layouts align with your daily routine will help you select the planner that becomes a natural extension of your day.

Size, Weight, and Portability Breakdown

To find your ideal planner, you must first consider where it will live and how it will travel with you. The physical footprint of each Hobonichi model dictates whether it functions best as a stationary desk companion or a portable on-the-go notebook.

The Hobonichi Original uses the standard international A6 paper size, measuring approximately 105 mm by 148 mm. This compact footprint is roughly equivalent to a standard postcard, making it exceptionally easy to hold in one hand. Because of its small size, the Original fits comfortably into most small bags, purses, and even some larger jacket pockets, offering a high degree of portability without feeling like a burden.

In contrast, the Hobonichi Cousin is built on the larger A5 paper size, measuring approximately 148 mm by 210 mm. This is exactly double the surface area of the A6 Original. While the extra space is excellent for writing, the Cousin is significantly heavier and bulkier due to its larger dimensions and high page count. Carrying the Cousin daily requires a dedicated backpack, tote bag, or briefcase, and it is generally more suited to remaining open on a desk rather than being pulled out on a crowded train.

The Hobonichi Weeks offers a completely different form factor, featuring a slim, elongated shape that measures approximately 95 mm by 187 mm. This pocket-book style is designed specifically for maximum portability. It is thin enough to slide into a breast pocket, a back pocket, or the smallest compartment of a daily commuter bag, making it the most travel-friendly option of the three.

Before making a purchase, you can perform a simple observable check to see how these sizes fit into your daily life. Gather a few items you already own, such as a standard postcard for the A6 Original, a half-sheet of printer paper for the A5 Cousin, and a standard envelope for the Weeks. Place these mock-ups inside your favorite daily bags or pockets to evaluate how much space they occupy and whether they interfere with your comfort during travel.

Daily Formats and Planning Workflows

Beyond their physical dimensions, the internal layouts of these three planners dictate how you organize your thoughts, schedule your time, and document your life. Each model is engineered around a specific planning workflow, ranging from minimalist tracking to dense, multi-layered journaling.

The A6 Original features a dedicated page for every single day of the year, alongside monthly calendar spreads. The daily pages use a subtle grid pattern that guides your writing without being intrusive. This format is ideal for those who want to write a short daily journal entry, track a few habits, or list a manageable number of daily tasks. Because the page size is compact, you can easily fill it without feeling pressured to write long, exhaustive paragraphs.

The A5 Cousin expands on this concept by offering three distinct layouts in a single book: monthly calendars, weekly vertical columns, and full daily pages. This comprehensive structure makes the Cousin a powerful tool for professional project management, detailed scheduling, and extensive creative journaling. The vertical weekly pages allow you to track appointments hour-by-hour, while the massive daily pages provide ample room for meeting notes, sketches, photos, and ephemera. If you enjoy decorating your pages with stickers, washi tape, or watercolor washes, the Cousin offers the canvas you need to do so without crowding your text.

The Hobonichi Weeks takes a structured, weekly-focused approach rather than offering individual daily pages. When you open the Weeks, you are greeted with a weekly schedule on the left-hand page and a blank grid page on the right-hand page. This layout is perfect for high-level planning, rapid logging, and task lists. You can note down appointments and deadlines on the left, while using the right page for weekly shopping lists, habit trackers, or general notes. It is less suited for long-form reflective journaling, but highly efficient for keeping your schedule organized at a glance.

Matching your writing style to these layouts prevents the frustration of either running out of space or facing intimidating blank pages. If you prefer to write in long, flowing sentences or enjoy scrapbooking, the Cousin’s expansive layout will feel liberating. If your planning consists of quick bullet points, schedules, and checklists, the Weeks or the Original will keep your system concise and functional.

Decision Framework: Which Hobonichi Fits You?

To help you finalize your choice, evaluate your daily habits against this structured decision framework. Choosing the right model depends on how you balance your need for writing space with your physical environment.

Choose the Hobonichi Original if you want a dedicated daily journaling habit but prefer a portable book. This model is excellent for individuals who want to separate their personal reflections from their work schedules, or for those who find large blank pages intimidating. It is also the ideal choice if you want a daily page format but have limited desk space.

Choose the Hobonichi Cousin if you need an all-in-one planner that handles detailed hourly scheduling, daily task lists, and long-form writing. This model is best for students, professionals, and creatives who do most of their planning at a desk and do not mind carrying a heavier book in their backpack or tote.

Choose the Hobonichi Weeks if your primary goal is schedule tracking, task management, and portability. It is the perfect companion for minimalists, busy commuters, and anyone who prefers to see an entire week’s schedule at a single glance without flipping through daily pages.

Verify first if your preferred writing tools and accessories are compatible with your choice. For instance, check the tip size of your favorite pens; if you write with broad gel pens or thick markers, the small grid of the A6 Original or the Weeks may feel cramped, making the larger Cousin a better fit. Additionally, if you plan to use thick decorative stickers or paste photos into your planner, keep in mind that the book will expand significantly over the year, which can make the already-heavy Cousin quite bulky or cause the slim Weeks to lose its flat-laying profile.

Neither may fit if you require a highly structured, goal-oriented planning system with built-in prompts, or if you prefer thick, heavy cardstock paper that completely prevents any show-through. The Hobonichi system relies on thin, lightweight paper designed to keep high-page-count books compact, which naturally results in some paper ghosting. If you prefer a completely blank canvas without any pre-printed dates or grids, a standard bullet journal or a blank notebook may serve your needs better.

Frequently Asked Questions (FAQ)

Do I need to buy a separate cover for my Hobonichi Techo?

Most Hobonichi Techo books are sold as individual, refillable paper books, meaning covers are typically purchased separately. This modular system allows you to reuse your favorite cover year after year while simply replacing the paper book inside. When shopping, pay close attention to the product listings, as some retailers offer bundles that include both the book and a cover, while others sell them strictly as individual items. Always verify that the cover size matches your specific book model, as an A6 cover will not fit an A5 Cousin, and the Weeks requires its own specialized slim covers.

Can I use fountain pens without bleed-through on Hobonichi paper?

The thin, specialized paper used in Hobonichi planners is highly regarded by stationery enthusiasts for its ability to handle fountain pen ink without bleeding through to the other side. However, because the paper is exceptionally thin, you will experience some “ghosting,” which is the visible shadow of writing on the reverse side of the page. Drying times can also be longer on this smooth surface compared to standard copy paper. It is highly recommended to test your specific pen and ink combinations on one of the blank memo pages at the back of the book before writing extensively, and to use a blotting sheet or backing board to protect subsequent pages.

Is the Hobonichi Cousin too heavy for daily commuting?

Whether the Hobonichi Cousin is too heavy for your daily commute depends on your carrying method and personal tolerance for weight. Because the Cousin contains over 400 pages of paper to accommodate both weekly and daily layouts, it has a noticeable physical weight that can add up when paired with a heavy leather cover. If you commute on foot or use public transit with a shoulder bag, you may find the Cousin’s bulk tiring over time. To simulate the experience before buying, you can weigh a standard hardcover book of similar dimensions on a kitchen scale and carry it in your bag for a day to see how it affects your comfort.