ZECTRIX NOTE SERIES

Choose your NOTE

Choose the ready-to-use NOTE4 AI note display, or start your own project with the open NOTE4C four-color e-paper device.

White ZECTRIX NOTE4 AI e-paper note display showing a task list NOTE4 / BLACK & WHITE E-INK
READY-TO-USE PRODUCTBLACK-AND-WHITE E-PAPERLIFETIME AI SERVICE

NOTE4

Keep tasks, time, and AI assistance within view

NOTE4 is made for people who want a complete product from day one. Capture tasks and reminders by voice, then display weather, clocks, focus timers, handwritten notes, images, and custom templates.

  • 4.2-inch black-and-white e-paper display, 400 × 300
  • Partial refresh for interactive content such as tasks
  • Mini app management with image and template delivery
  • Lifetime AI voice task service included
View NOTE4
ZECTRIX NOTE4C four-color e-paper development device NOTE4C / FOUR-COLOR E-INK
OPEN DEVELOPMENT DEVICEFOUR-COLOR E-PAPERDEVELOPMENT REQUIRED

NOTE4C

A complete starting point for a four-color e-paper project

NOTE4C is built for developers and advanced users. The display, mainboard, battery, enclosure, and mechanical structure arrive assembled, with open reference code for provisioning, image transfer, and display validation.

  • 4.2-inch black, white, red, and yellow display
  • Shares the NOTE4 hardware platform apart from the display
  • Fully open reference firmware
  • Does not include NOTE4's official AI features
View NOTE4C

ONE CLEAR CHOICE

Start with how
you want to use it

These are not higher- and lower-tier versions of the same device. One is a finished consumer product, while the other is an open platform for building.

USE IT NOW

Ready to use?
Choose NOTE4.

It includes official firmware, AI voice task service, and a complete set of everyday features.

Go to NOTE4
BUILD YOUR OWN

Building a four-color display?
Choose NOTE4C.

It is a fully assembled open development device intended for people with ESP32 and firmware experience.

Go to NOTE4C

SHARED HARDWARE

A shared hardware foundation

Both NOTE devices share the same compact, complete hardware platform. Their differences are in the display, firmware, and services, not in missing components inside the enclosure.

PROCESSORESP32-S3

Dual-core Xtensa LX7, 16 MB Flash + 8MB PSRAM

CONNECTIONWi-Fi + BLE

2.4 GHz Wi-Fi and BLE 5.0

POWER2,000+ mAh

Built-in battery with USB Type-C charging and data

INTERACTIONFULL I/O

Speaker, microphone, NFC, physical buttons, and expansion interface

FORM97 × 97 mm

8.75 mm thick with a magnetic back for desks and walls

DISPLAY4.2 INCHES

400 × 300, black and white on NOTE4, four colors on NOTE4C

Note: The two products share the same hardware platform apart from the display, but differ in positioning, firmware, and included services. See each product page for full details.

A magnetic ZECTRIX NOTE device in an everyday space

ONGOING SUPPORT

Support that continues
after setup

Both products include a 12-month warranty against product quality issues from the date of device activation. Documentation and community resources continue to evolve alongside the products.

12-month product quality warrantyWiki quick start and complete usage guidesContinuously updated tutorials and open resources
View support documentation

WHICH NOTE IS YOURS?

Find the NOTE that fits

Use a complete AI note display, or start building with a fully assembled open four-color device.

Explore NOTE4Explore NOTE4C