Supernote Manta Review: A Digital Notebook Designed for Long-Term Notes

The Supernote Manta is a digital notebook built around handwriting and document organisation. Its 10.7-inch flexible E Ink screen has a resolution of 1920 × 2560 pixels, giving it a density of 300 pixels per inch. That is useful for handwriting, fine lines and reading smaller text in documents. The display uses a 3:4 portrait-oriented page, closer to a sheet of paper or a legal pad than the widescreen format of a monitor. It is designed for people who want to write by hand, organise notes and return to them later rather than use the device as a general-purpose tablet.

The screen is front-light-free. That keeps the device dependent on ambient light or an external lamp, which can be inconvenient at night or in a dim room. Users who prefer an unlit reflective display may see this as a deliberate design choice, but it should not be confused with a device that can illuminate itself. If you often read or write in bed, on flights or in poorly lit rooms, compare the Manta with a tablet that includes a front light before buying.

Writing is the centre of the Manta experience. The soft screen protector is designed to provide friction under the pen, and the software supports handwritten notes, document annotation and organisational tools. Features such as headings, links between notes and searchable handwriting are intended to help users build a collection of material rather than leave everything in separate, unconnected notebooks. For students, researchers and professionals, that can be useful when notes from a meeting need to connect to a project, a document or an earlier idea.

The device is designed around a 10.7-inch display, but the overall dimensions and weight still make it portable. Supernote lists a weight of about 375 grams with the pen loop, though the final carry weight depends on the folio and accessories. It is not as small as a pocket reader, but it is light enough to carry in a bag with documents or a laptop. The larger writing surface is especially useful for diagrams, meeting notes and longer handwritten pages that would feel cramped on a six- or seven-inch reader.

One of the Manta's most distinctive features is its modular design. Supernote says the battery can be replaced and the motherboard can be upgraded, and the device includes a microSD card slot for storage expansion. These features are relevant because digital notebooks can hold years of notes and become difficult to replace once they are integrated into a person's workflow. Replaceable components do not guarantee that parts will remain available indefinitely, but they offer a clearer path to repair than a device whose battery and main components are permanently sealed inside.

The Manta has 32 GB of internal storage, with some capacity occupied by the system software, and supports microSD expansion. That is useful for people who keep large collections of PDFs, notebooks and reference documents. The exact supported card format and maximum capacity should be checked against Supernote's current documentation. A microSD slot also gives users another way to manage files, though it does not remove the need for backups. Important notes should be exported or synchronised to another location rather than relying on a single device.

The software is focused on handwriting and documents rather than a broad app ecosystem. This can make the Manta easier to use as a dedicated workspace, but it is a limitation if you want to install arbitrary Android apps or use the tablet as a conventional web browser. The device supports common document workflows, including PDF use and exporting notes, but buyers should check current compatibility for the formats and cloud services they rely on. The more specialised the workflow, the more important it is to test the import and export process before committing.

The lack of colour also matters. The Manta is suitable for monochrome notes, diagrams and text, but it cannot display colour annotations as a colour E Ink tablet can. If you work with coloured charts, highlighted diagrams or illustrated textbooks, a colour device such as the reMarkable Paper Pro may be more suitable. The trade-off is that colour E Ink has its own compromises in contrast, refresh behaviour and cost. A monochrome writing tablet can be a better choice if you value fine text and handwriting over colour.

The Supernote Manta competes with devices such as the reMarkable Paper Pro and BOOX note-taking tablets, but the differences are about workflow as much as screen specifications. The reMarkable offers a colour display and front light with a more tightly controlled software environment. BOOX devices generally offer broader Android flexibility, depending on model. The Manta's appeal is its combination of a high-density monochrome screen, note organisation, storage expansion and serviceable hardware. The best choice depends on whether you prioritise writing, colour, app support or repairability.

The Manta is worth considering for people who want a long-term digital notebook rather than a multipurpose tablet. Its sharp 300-ppi display, handwriting-focused software and replaceable components are meaningful strengths. The main compromises are the absence of a front light, monochrome display and more limited app flexibility than Android devices. If your main goal is to build a durable archive of handwritten notes and annotated documents, it deserves a close look. If you mostly want to read books at night or use a wide range of apps, another device may suit you better.