Joybuy Insights

How to choose an undated A5 18-month planner without getting it wrong

An undated A5 18-month planner meets a very practical need: starting to get organised whenever you like, without wasting pages if your routines change. This format suits adults, students and professionals just as well as entrepreneurs, creatives and travellers who want to bring daily organisation, appointments, projects and notes together in one notebook.

However, the features highlighted in product descriptions do not always guarantee a pleasant experience over the months. Before buying an A5 planner, take the time to examine its internal layout, the strength of its cover and the quality of its paper.

Common pitfalls before buying

1. Confusing the stated duration with the space actually available

An 18-month planner may seem particularly generous. However, the number of pages and how they are divided between monthly views, weekly views and note sections vary considerably from one model to another. A mainly monthly planner with little writing space may frustrate anyone who likes to detail their daily tasks.

So check that it includes monthly and weekly views, as well as a note section large enough to be genuinely useful.

2. Relying solely on the appearance of the cover

A hardback cover is better able to withstand the rigours of a bag, but it can become cumbersome if the binding is difficult to open. A soft cover is lighter, but offers less protection against scuffs and creases.

The word ‘premium’ is no substitute for practical information: cover type, dimensions, fastening system, rounded corners and the notebook’s ability to stay open while you write.

3. Overlooking paper weight

Paper that is too thin may show ink through on the reverse, especially when using a fountain pen, felt-tip pen or highlighter. Paper weight alone is not enough to predict writing comfort, but it is a useful point of comparison between two notebooks.

At 100 g/m², the paper will generally be thicker and more substantial than 70 g/m² paper. The result also depends on the type of ink used and the pressure applied to the page.

Criteria to check for a durable planner

Size and ergonomics

A5 measures approximately 14.8 × 21 cm. It offers a good balance between reading comfort and portability: large enough for noting down tasks, while still easy to slip into a work bag or student bag.

You should also check:

  • the notebook’s total thickness;
  • whether it opens flat;
  • whether it has a page marker;
  • the presence of an elastic closure;
  • whether it has an inside pocket for documents or tickets.

A planner with an elastic closure and page marker makes it easy to find the current week and prevents the notebook from opening inside your bag while travelling.

Layout and flexibility

An undated planner lets you start without waiting for the beginning of a month, year or academic term. It adapts to changing routines, occasional projects and irregular use.

For versatile use, look for:

  1. an identification or personalisation page;
  2. monthly spreads for keeping an overview;
  3. weekly spreads with a notes section;
  4. dedicated sections for tracking goals or projects.

With this layout, the notebook becomes a true personal organiser, rather than simply a calendar for appointments.

Materials and care

A hard cover made from laminated board protects the pages better than a very soft cover. However, it does not cope well with prolonged exposure to moisture. To protect the paper and cover, wipe the surface with a soft, dry cloth, then store the planner somewhere away from damp.

Models fitted with an elastic, ribbon or small accessories should be kept out of reach of children under three years old. Like any paper and board item, they should also be kept away from flames and sources of excessive heat.

Our selection by user profile

Recommended for: Beginners on a budget
Jubiluu A5 Undated Hardcover 18-Month Scarlet Red

Jubiluu A5 Undated Hardcover 18-Month – Scarlet Red

Why this choice suits this profile: Its A5 size and undated design let you start at your own pace, whether you are studying, working or organising your personal life, without waiting for a specific date.

How this product avoids the pitfall

Its 224 pages combine monthly views, weekly views and note sections. The notebook is therefore not limited to a single function.

Main benefit and key features

Hard cover, lined off-white 100 g/m² offset paper, page marker and elastic closure.

Recommended for: Premium stationery enthusiasts
MOLESKINE Large 12-Month Weekly Planner Horizontal

MOLESKINE Large 12-Month Weekly Planner – Horizontal Layout

Why this choice suits this profile: Its structured layout is ideal for people who prefer dated planners, with a horizontal weekly layout and several complementary sections.

How this product avoids the pitfall

The product description specifies the weekly layout and mentions an inside pocket, along with pages dedicated to travel, ideas and goals.

Main benefit and key features

Elastic closure, ribbon page marker, 180° lay-flat opening and 70 g/m² ivory paper from FSC-certified sources, according to the product description.

Recommended for: Specific uses and intensive users
MOLESKINE 12-Month Weekly Planner XL Hardcover

MOLESKINE 12-Month Weekly Planner XL Hardcover

Why this choice suits this profile: Its XL format and weekly notes space are well suited to tracking projects, business travel and busy schedules.

How this product avoids the pitfall

Its hard cover, lay-flat binding and elastic closure meet the demands of frequent use and regular transport.

Main benefit and key features

Pages dedicated to travel, goals and ideas, expandable inside pocket, two personalisation elements and ribbon page marker.

Looking for more options ?

We have brought together a complete, real-time selection of products that meet these exacting criteria while complying with European safety regulations.

How to use an undated planner every day

To avoid leaving pages blank, start by defining a realistic period of use. Then transfer your fixed appointments to the monthly view and distribute your tasks throughout the weekly planner. The notes section can be used to separate priorities, ideas and tasks to be carried forward.

To track your goals, stick to a few simple indicators: task completed, deadline, planned duration or next action. This keeps the notebook easy to read and makes reviewing it at the end of the week much quicker.

Frequently asked questions

Is an undated A5 18-month planner suitable for a student?

Yes, provided it offers separate monthly and weekly views. Students can start at the beginning of a term, note exam periods and use the note sections for homework or projects.

How long does an undated planner actually last?

The ‘18 months’ description refers to a theoretical planning capacity. The actual duration depends on how often you use it and how much you write. A 224-page planner with undated sections can be used continuously or occasionally, depending on your needs.

Is 100 g/m² paper necessary?

Not necessarily. 70 g/m² paper works perfectly well with a ballpoint pen or pencil. 100 g/m² paper offers greater comfort and reduces the risk of ink showing through when writing with more pressure, but it can also make the notebook thicker. The right choice therefore depends on your writing instruments and how you organise yourself.