The rise of e-readers has sparked a debate that continues to grow: is it worth investing in an e-reader with a color screen, or is a black and white one still better? If you're considering this, here you'll find a complete, practical guide that closely reflects what's happening on the market and in stores. The aim is to help you decide with real data, technical details, and user experiences.
Before we get down to business, it's worth remembering exactly what an e-reader is: it's a mobile device designed for consuming books and digital publications comfortably and for extended periods. The key to its magic is E Ink technology , created to mimic real paper, with soft lighting and minimal power consumption. However, with the arrival of color, reasonable doubts have arisen: Is it truly up to par? What kind of reading is it worthwhile for? What do I lose and what do I gain compared to black and white?
E Ink: What it is and how it works
E Ink displays are reflective: they don't emit light like mobile phones or tablets, but instead use ambient light or optional front lighting. Inside, there are microcapsules with black and white pigments that move with an electric field , displaying static text and images with very low power consumption (they only use energy when changing pages).
The beauty of color comes in two ways. The first, and most common, adds an RGBW color filter on top of the black and white base. This filter "tints" the incoming and outgoing light, allowing you to see 4.096 colors, but it reduces the sharpness and contrast of the monochrome mode . The second way is E Ink Gallery (ACeP), which uses cyan, magenta, yellow, and white pigments in each pixel for a more complete palette, at the cost of slower refresh rates and a higher price.
From Vizplex to Kaleido 3 and Gallery 3: the evolution of displays
The history of E Ink is long and multifaceted. It began with Vizplex (2007), continued with Pearl, and was refined with Carta and Carta HD (where we reached 300 dpi in black and white). There were also variations like Mobius (plastic substrate, more durable) and early color solutions like Triton and Triton 2.
In terms of color, the big modern leap came with Kaleido (2019). Then, Kaleido Plus (2021) improved texture and color balance, and the Kaleido 3 generation (2023) increased saturation by 30% compared to its predecessor, while maintaining 16 gray levels and 4.096 colors . It is the most widespread color option today due to its affordable cost and reasonable refresh rate.
Meanwhile, E Ink Gallery 3 (2023) is based on ACeP and focuses on superior color quality. Its refresh rates are 350 ms in black and white, 500 ms in fast color, and 750–1500 ms in standard or maximum color , at 300 dpi. It includes ComfortGaze to reduce reflected blue light. It's excellent for static content, but its cost and refresh rates place it in a more niche market.
Color vs. black and white: what really changes
The most obvious technical difference lies in the effective resolution. In black and white, text is typically displayed at 300 dpi; in color, it's usually 150 dpi when the RGBW filter is activated. This means that text loses definition and contrast decreases when displaying color content. Furthermore, the colors are softer than on an LCD and can appear muted without front lighting.
In practice, what are the differences? For reading novels or long texts, black and white still wins in terms of sharpness, contrast, and speed . For comics , illustrated novels, maps, or graphics, color adds a great deal of visual context, albeit with more pastel tones. In recent models, loading color pages is smooth, but it can be somewhat slower than in black and white, and color files tend to take up more memory.
There are user experiences that help set the bar. Those who compare a color reader side-by-side with a monochrome one usually conclude that the black and white screen is "brighter and sharper ." It has also been noted that with the front light off, the color is less impressive, and that the so-called "screen door effect" (the filter grid) can be visible, although some find it fondly reminiscent of CRTs and are not bothered by it.
There have also been isolated cases of lines or artifacts that hinder reading in certain situations. These are effects of a technology still evolving, becoming increasingly refined, but which doesn't yet match the punch of a tablet in terms of color saturation or speed.
Eye health: why E Ink is less tiring
An LCD/OLED screen emits direct light and uses high levels of blue light, which can interfere with melatonin and strain your eyes. E Ink is reflective and only requires ambient light or front lighting that shines on the surface , not your eyes. Many brands add color temperature control for warm nighttime tones.
In bright sunlight, the difference is crystal clear: the more light, the better E Ink looks, without annoying glare or the need to increase the brightness . Furthermore, because it's a stable image that only refreshes when you turn the page, it's easier on the eyes than screens that flicker dozens of times per second.
Real advantages of color and its limits
Color has two major advantages. The first is aesthetic and related to navigation: colorful covers, more visually appealing libraries, and stores that are visually stunning . The second is functional: color-coded highlights, notes differentiated by tone, easier-to-read diagrams and maps, and, above all, comics and illustrated novels that benefit greatly from color.
Where does it fall short? The contrast and text definition suffer compared to a pure black and white reader, the saturation is lower, and the speed is somewhat slower . Furthermore, these devices aren't designed for video or fast-paced web browsing; their appeal lies in relaxed reading, with battery life lasting for weeks.
Experiences and opinions: what is being said
Since Amazon unveiled its Kindle Colorsoft and Rakuten presented its Kobo Libra Colour, social media has been flooded with all sorts of comments. Some are celebrating the ability to enjoy comics with good battery life and without eye strain , while others would prefer more vibrant colors. Several people point out that the color resolution (150 dpi) is noticeable in panels with fine details or dark backgrounds.
Representative models in color and B&W
The current market offers several clear options. Kindle Colorsoft Signature Edition and Kobo Libra Colour are the popular 7-inch models , while PocketBook offers very complete alternatives at a reasonable price, and Boox focuses on large screens and Android for serious writing.
Kindle Colorsoft Signature Edition
The color Kindle has generated considerable buzz due to its format and battery life. In black and white, it boasts 300 dpi, while in color it reaches 150 dpi, with a battery that theoretically lasts up to 56 days . Pricing varies depending on the time and store: figures as high as €299,99 have been seen, as well as occasional offers of €224,99 until July 10, 2025. These prices change frequently, so it's advisable to check the current price.
Kobo Libra Color
This 7-inch Kobo stands out for its ergonomics. It includes physical buttons for turning pages and a side bezel that doubles as a grip , making it very comfortable for one-handed reading. The screen automatically rotates for left- or right-handed users. The store and library feature colorful covers, making the experience more appealing.
Where it truly shines is in its note-taking features. With the "My Notebooks" section, you can create notebooks, take notes, and highlight with colors , but be aware: the stylus is sold separately and costs €69,99. Without it, the writing functions are unavailable. It's a reader, not a tablet; it's not ideal for video or fast browsing. It works remarkably well with comics and illustrated novels , though the resolution is lower compared to the black and white mode. Its price has been seen at €229,99, and it's sold through the Kobo store and other retailers.
Kobo Clara Color
If you're looking for something more compact and affordable, the Kobo Clara Colour has been seen for as little as €159 . It maintains the color philosophy of the Kaleido 3 in a smaller format. It's a great option if you're on a budget and want color in a manageable size.
Boox Note Air 3C
We're moving up a size with a different option. The Boox Note Air 3C features Kaleido 3 on a 10,3-inch screen and runs Android . This opens the door to apps, and even video playback (although E Ink isn't ideal for that). The best part: very fast and precise handwriting, with fluid strokes. If you're going to be taking notes seriously every day, it's a powerful option . The downside: it tries to resemble a tablet, and that's where E Ink has its limitations; plus, it's not cheap.
PocketBook Verse Pro Color
One of the best value color options. 6-inch Kaleido 3 touchscreen display, 300 ppi in grayscale and 150 ppi in color . Quad-core processor (4 x 1,8 GHz), 1 GB of RAM, 16 GB of storage, IPX8 water and dust resistance, dual-band Wi-Fi, and Bluetooth 5.4 with audio. It weighs 182 g and measures 108 x 156 x 7,6 mm. The 2100 mAh battery lasts for weeks with typical use . Includes a USB-C port with OTG for flash drives.
It uses a Linux 4.9.56-based system with a very flexible PocketBook interface. It supports a huge number of formats (EPUB, PDF, MOBI, AZW, AZW3, CBR/CBZ, etc.) and Adobe and LCP DRM , and allows text-to-speech in English (downloadable in more languages). It includes apps such as a calculator, browser, RSS feed, Dropbox PocketBook integration, simple games, and its own cloud storage with 2 GB of free reading syncing. It is compatible with eBiblio in Spain, and you can download books directly from the device if you configure your Adobe account.
In terms of ergonomics, it combines small front buttons with a slightly recessed screen for added protection. The SmartLight front light allows you to adjust brightness and warmth . The colors are functional (more journalistic than photographic) and page turning is fast for E Ink color. On the downside, it lacks a 3,5 mm headphone jack and the PocketBook store is more limited than Kobo or Amazon, but its open format support and library integration compensate for this. Price-wise, it typically hovers around €160–€170 , a very competitive price.
Key comparisons: Kindle Colorsoft vs Kobo Libra Color
On paper, both offer a 7-inch screen, 300 dpi in black and white and 150 dpi in color . The difference lies in their approach. The Kindle opts for a more compact format, without page-turn buttons, and boasts very long battery life. Kobo, on the other hand, adds physical buttons and a side grip that appeals to those who read for hours on end.
Regarding prices, there are notable variations depending on the time. The Kobo Libra Colour has been seen at €229 and the Kindle Colorsoft at €299,99 , with occasional Kindle offers at €224,99 in early July 2025. The Kobo Clara Colour is also a cheaper alternative (€159). Ultimately, if you want buttons and to pay less, Kobo is usually the better option; if you're drawn to the integration of the Kindle ecosystem and its theoretical battery life, the Colorsoft has its advantages.
Color tablets vs. eReaders: they are different worlds
While there are eReaders with Android or color screens, they don't replace the tablet experience . On E Ink, yellows, oranges, and browns can appear muted; the refresh rate is slower, and videos don't look their best. In return, you gain visual comfort and a battery that can last for weeks . It's a leisurely reading experience: that's what they were designed for.
Who is each technology for?
If your reading diet consists mainly of novels, essays, and lots of text, black and white is the safest bet . You'll have greater clarity in small print, better contrast, and faster page turns. Plus, black and white e-readers are usually more affordable.
If you enjoy comics, graphic novels, children's books, or books with maps or diagrams, and you like to highlight with color , then color highlighting is for you. Keep in mind that text clarity will decrease when color highlighting is enabled, and that large files will take up more space.
For note-taking, color helps organize ideas, allowing you to mark them by shade . In the Kobo ecosystem, remember that for handwriting you need to buy the stylus separately (€69,99). If your focus is on writing daily, a larger eReader like the Boox Note Air 3C might be a better fit.
Prices, availability and membership notices
The prices you see fluctuate considerably depending on offers, promotions, and stock availability. Prices mentioned include €229,99 (Kobo Libra Colour), €159 (Kobo Clara Colour), €299,99 (Kindle Colorsoft), and a Kindle offer of €224,99 as of July 10, 2025. Use these as a reference and always confirm the final price at the time of purchase.
Some publications use affiliate links and programmatic advertising, allowing them to generate revenue if you purchase through those links . This doesn't usually influence reviews, but it's good to be aware of. In any case, the final decision should be based on your reading habits, not just the headline of a specific offer.
Technical details that make the difference
Resolution and density: 300 dpi in monochrome versus 150 dpi in color . This is noticeable in the sharpness of the typography and the definition of detailed panels.
Saturation and contrast: The Kaleido 3 is an improvement over previous generations, with 30% more saturation , but it's still far from an LCD. Even so, it's more comfortable for extended reading.
Refresh and ghosting: Modern readers handle ghosting well , with full wipes when necessary. In comics, this behavior is solid, with no trace of previous panels under normal conditions.
Battery life: The color display's battery doesn't "disappear." Manufacturers claim it lasts for weeks, and even for tens of days . If you turn off Wi-Fi and use moderate brightness, you'll have plenty of battery life.
Formats and DRM: If you purchase from outside the ecosystem, check compatibility. PocketBook stands out for its wide range of formats (including AZW/AZW3) and support for Adobe and LCP . This makes it easier to use libraries like eBiblio in Spain.
Quick buying tips
- If you read mostly text, prioritize a 300 dpi B&W reader with good warm frontlight.
- If you go for comics and color notes, look for Kaleido 3, physical buttons if you like and confirm the price of the stylus.
- Public libraries? Rate open readers with Adobe/LCP DRM and browser capability for eBiblio.
- Intensive writing? Consider large screens (10,3 inches) and an ecosystem with apps, assuming E Ink limits in multimedia.
One more thing: the online community has become very active on this topic . Looking at comparisons and photos in real-world conditions (with and without light, outdoors/indoors) helps to gauge your expectations, especially if you're coming from black and white and are worried about the loss of contrast.
One last important point: color technology will continue to advance . Today, Kaleido 3 offers a very balanced approach between price and user experience, while Gallery 3 aims for a future with better color reproduction at the expense of refresh rate and cost. If color is valuable to you right now, you don't need to wait; if you prefer pure text, black and white will continue to be your best friend for quite some time.
To complete the picture, think about what you actually read each week. If you devour novels and demand maximum clarity, go for a 300 dpi black and white e-reader; if you alternate between comics, children's books, maps, or color highlighting, switching to color will bring you more joy, allowing you to appreciate its more leisurely pace and the soft tones characteristic of e-ink. Choose based on your reading habits, not trends: that's the perfect purchase.
