ZECTRIX PRODUCTS

Choose

Choose a consumer product built around official firmware and everyday use, or start with developer hardware made for your own firmware and projects.

01FOR EVERYDAY USERS

Consumer

Official firmware and services for everyday use.

White ZECTRIX NOTE4 AI e-paper note display showing a task list NOTE4 / BLACK & WHITE E-INK
READY TO USEWAITLIST OPEN

NOTE4

Everyday information, always in view

Ready-to-use official firmware for voice tasks, reminders, weather, timers, notes, images, and templates.

  • 4.2-inch black-and-white e-paper display, 400 × 300
  • Partial refresh for interactive content such as tasks
  • iOS and Android app management with image and template delivery
  • Lifetime AI voice access for first-batch buyers
View NOTE4
02FOR DEVELOPERS & MAKERS

Developer

Ready-to-build e-paper hardware for your own firmware.

White ZECTRIX NOTE4 Devkit showing a 16-level grayscale weather display NOTE4 DEVKIT / B&W
BLACK & WHITE16 GRAY LEVELS

NOTE4Devkit

Fast refresh, grayscale, open firmware

ESP32-S3 hardware with demo firmware and an open ESP-IDF reference project.

  • Full and partial 1-bit refresh
  • Full-screen 4bpp / 16-level grayscale
  • MIT-licensed ESP-IDF reference project
View NOTE4 Devkit
ZECTRIX NOTE4C Devkit four-color e-paper development device NOTE4C Devkit DEVKIT / FOUR COLOR
FOUR-COLOR E-PAPEROPEN DEVELOPMENT

NOTE4CDevkit

Four-color e-paper for visual projects

ESP32-S3 hardware with open code for provisioning, image transfer, and display validation.

  • Black, white, red, and yellow display
  • Open reference firmware
  • Does not include NOTE4's official AI features
View NOTE4C Devkit

TWO PRODUCT FAMILIES

Use it as made.
Or build your own.

The first choice is whether you want a supported consumer experience or developer hardware. Developers can then choose black-and-white or four-color e-paper.

01 / USE IT

Want official firmware and services?

It is the path for everyday features and AI voice tasks, with the multilingual experience continuing to improve through OTA updates.

Go to NOTE4

SHARED HARDWARE

A shared hardware foundation

All three NOTE paths share the same compact, complete hardware foundation. Their differences are in the display, firmware, services, and product promise—not in missing core 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 and NOTE4 Devkit, four colors on NOTE4C Devkit

Note: NOTE4 and NOTE4 Devkit use black-and-white e-paper, while NOTE4C Devkit uses a four-color panel. Firmware, included services, support boundaries, and batch details differ. See each product page for full details.

A magnetic ZECTRIX NOTE device in an everyday space

ONGOING SUPPORT

Support that continues
after setup

NOTE4 includes limited warranty and after-sales support for eligible product-quality issues. NOTE4 Devkit and NOTE4C Devkit are development devices and do not include a commercial product warranty; support for hardware manufacturing defects may be assessed separately. Coverage, available remedies, and return-shipping arrangements vary by product, issue, destination, sales channel, and applicable law.

NOTE4 limited warranty and after-sales supportNOTE4 Devkit and NOTE4C Devkit have no commercial product warrantyContact support before returning any device
View support documentation

CHOOSE YOUR PRODUCT FAMILY

Use it or build it

Start with the supported NOTE4 consumer experience, or compare black-and-white and four-color developer hardware.

Explore NOTE4Explore developer hardware