SMARTER READING, LESS DISTRACTION
Meet Metalio E-InK4: Standard vs Plus, CrossPoint 2.0 & Buying Guide
Looking for a lightweight reading companion with smart features? Discover the Metalio E-Ink4 and E-Ink4 Plus, two compact E Ink readers designed for reading, learning, and everyday carry.
Update Notice on October 30th: The AI functions previously advertised are not available for now.
The original AI service relies on servers located in China, which leads to high latency and unstable connections for overseas users. To avoid poor experience, we have temporarily removed the AI feature. We plan to reintroduce AI features later once we integrate GPT for stable global access.
Compact design, physical buttons, and an E Ink screen.
A Tiny E-Reader That Goes Everywhere
Sometimes, all you want is a book without the distractions of a smartphone. Whether you're commuting, waiting for a flight, or enjoying a quiet coffee break, a compact E Ink reader makes it easy to keep reading throughout the day.
The standard Metalio E-Ink4 features a 3.97-inch E Ink touchscreen with an 800 × 480 resolution and 235 PPI. Weighing approximately 70 g and measuring just 6.8 mm thick, it's designed to slip easily into your pocket or bag.
The standard version has no front light, so you'll need sufficient ambient light when reading. Its reflective E Ink display offers a paper-like viewing experience without the bright, self-illuminated look of a typical phone screen.
CrossPoint 2.0 — Pre-installed and Ready to Read
Great news for Metalio readers! CrossPoint 2.0 officially supports Metalio E-InK4, bringing a more customizable reading experience with adjustable fonts, bookmarks, chapter navigation, dictionary lookup, and flexible book management.
And the best part? Mechdiy installs CrossPoint 2.0 before shipping, so you don't need to flash the firmware yourself. Simply turn on your device, add your favorite books, and start reading.
For Metalio E-InK4 Plus, Mechdiy is actively adapting CrossPoint 2.0. Although the Plus model hasn't been separately listed in CrossPoint's official supported-device announcement, Mechdiy is preparing to complete firmware installation and compatibility testing before shipping.
Both models are intended to arrive with CrossPoint 2.0 pre-installed — no manual flashing required.
Want to see CrossPoint in action? Explore real Metalio E-InK4 screenshots, reading settings, bookmarks, and more in our detailed guide.
Explore CrossPoint 2.0 on Metalio E-InK4
A compact screen for everyday information and personalization.
Physical Buttons Meet Touchscreen Control
Prefer tactile controls, or do you like tapping directly on a screen? The Metalio E-Ink4 combines physical buttons with touchscreen interaction, giving you flexible ways to navigate and use supported functions.
With speaker and microphone support, the device also offers audiobook playback and voice interaction. It's designed for readers who want more than a basic ebook display in a small, portable format.
Meet the Metalio E-Ink4 Plus: A Bigger Screen
Want more screen space? The Metalio E-Ink4 Plus offers a larger 4.7-inch E Ink display with a 684 × 1216 resolution and 297 PPI. Its 2000 mAh battery also provides a larger capacity than the standard version's 1000 mAh battery.
The Plus is available in different configurations, including versions with and without a front light. If you often read in dim environments, choose the front-light version and adjust its brightness to suit your surroundings.
Despite its larger screen, the Plus remains compact, measuring approximately 122 × 71 × 7.8 mm and weighing around 100 g.
A portable reading companion for commutes, trips, and everyday downtime.
Metalio E-Ink4 vs. E-Ink4 Plus
Not sure which model fits your reading habits? Here's a quick comparison of the key specifications.
| Feature | E-Ink4 | E-Ink4 Plus |
|---|---|---|
| Display | 3.97-inch | 4.7-inch |
| Resolution | 800 × 480 | 684 × 1216 |
| Pixel density | 235 PPI | 297 PPI |
| Battery | 1000 mAh | 2000 mAh |
| Front light | No | Available on selected versions |
| Weight | Approx. 70 g | Approx. 100 g |
Choose the E-Ink4 if you prioritize the smallest, lightest form factor. Choose the E-Ink4 Plus if you prefer a larger, higher-density display, a bigger battery, and the option of a front light.
An Open-Source Device for Curious Minds
The Metalio E-Ink4 family is built around the ESP32-S3 platform and supports open-source firmware exploration. For developers, makers, and technology enthusiasts, this adds another dimension beyond everyday reading.
Depending on the model and firmware, users can explore compatible software, customization options, and community projects. Firmware modifications may require technical knowledge, so always check compatibility before flashing third-party software.
Explore the Metalio E-InK4 open-source project on GitHub.
Keep Your Screen Protected
A screen protector is a practical add-on for a portable device that travels in your pocket or bag. Pair your Metalio E-Ink4 with a compatible tempered glass screen protector to help protect the display from everyday scratches.
Please confirm the protector's compatibility with your selected model before ordering.
YOUR NEXT READING COMPANION
Small Device. Smarter Reading.
Whether you prefer an ultra-light pocket reader or a larger screen with optional front lighting, discover the Metalio E-Ink4 that suits your routine.
A little extra for your next gadget upgrade
Use code MY10 for 10% off
Enter the code at checkout. Please check current promotion eligibility and terms before publishing.
Join the Metalio Community!
Love your Metalio E-InK4? You're not alone!
Come hang out with fellow Metalio readers, share your reading setup, explore CrossPoint tips, ask questions, and discover what others are doing with their devices.
Whether you're new to Metalio or love experimenting with open-source firmware, we'd love to have you!
See you in the community! 📖
