Smart E-paper Products

Smart e-paper products and location terminal solutions

Nacrelnk supports 1.54-inch e-paper keychains, Apple Find My / Google Find Hub models, and 3.7-inch e-paper photo albums from hardware to app and production.

View ProductsApp Download
1.54-inch keychain
Find My / Google Find Hub
3.7-inch photo album
Nacrelnk e-paper product showcase

Product Line

NI168 and NI368 four-color / six-color e-paper products

Nacrelnk covers 1.54-inch location keychains and 3.7-inch e-paper photo frames. NI168 / NI168 Pro support Apple Find My and Google Find Hub, while NI368 / NI368 Pro focus on photo frame display only.

NI168 Pro
Featured Model
1.54-inch six-color ink screen positioning key chain

NI168 Pro

NI168 Pro is a 1.54-inch six-color ink screen positioning keychain, which provides richer color display effects based on positioning capabilities and is suitable for brand vision, member gifts, cross-border gifts and high-recognition portable devices. Supports Apple Find My and Google Find Hub functions.

1.54-inch six-color EPD
Apple Find My
Google Find Hub
Brand color picture display
High-end keychainCross-border giftsBrand membership cardAnti-lost equipment
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NI168
Location Model1.54-inch four-color ink screen positioning key chain

NI168

NI168 is a 1.54-inch four-color ink screen key fob, designed for portable anti-loss, key management, bag positioning and gift customization scenarios. The product supports Apple Find My and Google Find Hub functions, and can display QR codes, contact information, brand patterns or personalized pictures.

1.54-inch four-color EPDApple Find MyGoogle Find HubLow power consumption always display
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NI168 Pro
Location Model1.54-inch six-color ink screen positioning key chain

NI168 Pro

NI168 Pro is a 1.54-inch six-color ink screen positioning keychain, which provides richer color display effects based on positioning capabilities and is suitable for brand vision, member gifts, cross-border gifts and high-recognition portable devices. Supports Apple Find My and Google Find Hub functions.

1.54-inch six-color EPDApple Find MyGoogle Find HubBrand color picture display
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NI368
Photo Frame3.7-inch four-color ink screen photo frame

NI368

NI368 is a 3.7-inch four-color ink screen photo frame that focuses on photo and image display and does not include positioning functions. Suitable for home desktops, office desktops, commemorative photos, holiday gifts and branded desktop decorations.

3.7-inch four-color EPDPhoto frame functionLow power consumption always displayImage content customization
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NI368 Pro
Photo Frame3.7-inch six-color ink screen photo frame

NI368 Pro

NI368 Pro is a 3.7-inch six-color ink screen photo frame that provides richer color photos and brand visual display effects. The product is positioned as an electronic paper photo frame function and does not include Apple Find My or Google positioning functions.

3.7-inch six-color EPDPhoto frame functionColor photo displayDesktop Gift Plan
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Nacrelnk App

App 3.0.1

Manage your e-paper products from your phone

The Nacrelnk App is designed for e-paper keychains, smart location products, and e-paper photo albums, covering device binding, image editing, screen updates, location entry, and content management.

iOS DownloadAndroid DownloadEnterprise APK Download
Supported productsNI168NI168 ProNI368NI368 Pro
Nacrelnk App
Device and screen control
N
Nacrelnk e-paper keychain and app product scene
App 3.0.1
NI168 Pro
Apple Find My / Google Find Hub
Scan-ready download entry
Scan-ready download entry

Screen Content Editing

Upload images, QR codes, or text and sync them to the 1.54-inch e-paper keychain.

Apple Find My

The location model can connect to the Apple Find My network for keys, bags, and everyday carry items.

Google Find Hub

Supports Google Find Hub ecosystems for Android users and global location scenarios.

Technology

Display and connectivity capabilities designed for low-power terminals

Nacrelnk packages e-paper driving, wireless connectivity, device management, and application APIs into production-ready solutions.

< 5uA

Ultra-low Power

On-demand refresh and deep-sleep strategies for long-term portable and desktop use.

EPD

Paper-like Display

E-paper keeps content visible without power and remains readable under strong light.

Find

Location Ecosystem

Location models can support Apple Find My and Google Find Hub ecosystems.

API

Open Development

SDKs, APIs, demos, and OTA workflows support fast integration.

Solutions

Industry solutions for real business workflows

Stable hardware, low-power connectivity, and configurable software help teams deploy e-paper terminals quickly.

Everyday Tracking

Everyday Tracking

Keys, bags, devices, and gift products with e-paper display and location capability.

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Gift Customization

Gift Customization

1.54-inch keychains and 3.7-inch albums for branded gifts, events, and holiday packs.

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Asset Management

Asset Management

Identity display, QR codes, and location tracking for devices, tools, and reusable assets.

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Retail Display

Retail Display

Low-power always-on e-paper for price cards, member tags, shelf labels, and store information.

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Desktop Album

Desktop Album

3.7-inch e-paper albums for home desks, office desks, and keepsake displays.

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App Delivery

App Delivery

Manage images, QR codes, location entry, and device status through the app.

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Comparison

NI168 / NI368 product comparison

A structured view of the four current models by size, color, location capability, and use case.

Contact SalesGet Datasheet
Parameter / ProductNI168NI168 ProNI368NI368 Pro
Size1.54 inch1.54 inch3.7 inch3.7 inch
ColorFour-color e-paperSix-color e-paperFour-color e-paperSix-color e-paper
FunctionLocation keychainLocation keychainPhoto frame displayPhoto frame display
LocationApple Find My / Google Find HubApple Find My / Google Find HubNo location functionNo location function
Use CaseKeys, bags, anti-loss giftsPremium gifts, brand display, asset trackingDesktop frames, keepsakes, brand displaysColor photo display, premium gifts, desk decor

Developer Platform

Faster hardware onboarding, content delivery, and device management

SDKs, APIs, demos, OTA workflows, and production tooling help engineering teams move from prototype to pilot to production.

SDK download

TypeScript / C / Python, supports device connection, image conversion, screen refresh and batch tasks.

API documentation

Covers device bindings, content templates, firmware versions, task queues, and callback status.

Demo project

Provides ESP32, Nordic, Linux gateway and App access examples to facilitate prototype verification.

Firmware OTA

Supports grayscale upgrade, version rollback, device grouping and exception recording.

import { EPDDevice } from '@nacrelnk/sdk';

const device = new EPDDevice('NCL-KEY-154');

await device.connect();
await device.render({
  template: 'keychain-card',
  data: {
    name: 'Nacrelnk',
    qr: 'https://nacreink.com',
    status: 'Ready'
  }
});
await device.sleep();
ESP32Nordic nRF52STM32LinuxAndroidiOSGD32

Global Delivery

Global delivery and partnership network

From solution assessment and sample validation to mass production, Nacrelnk supports hardware selection, firmware adaptation, app access, and after-sales service.

30+
Countries and regions
120k+
Terminal deployment experience
6
Core industry solutions
24h
Engineering response
Retail IoT
Gift Brand
Smart Office
LogiTrack
AI Device

Insights

News & Insights

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product updates

Nacrelnk organizes 1.54-inch ink screen key buckle product line

Organize clearer product positioning, functional boundaries and selection suggestions around ordinary key fobs, smart positioning models and gift customization scenarios.

4 min read
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Technical articles

The application of Apple Find My and Google Find Hub in portable anti-lost products

The combination of positioning ecology and low-power ink screen enables better identification, display and tracking of keys, bags and equipment assets.

5 min read
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Scenario Insight

3.7-inch ink screen photo album suitable for desktop gifts and brand display

Paper-like display, low-power constant display and image content management make e-paper photo albums a quieter and more attractive desktop content carrier.

4 min read
Read More ->

Contact

Submit a request and get a product quote

Share your product type, quantity, location features, app integration, and delivery timeline. We will prepare a practical product and quotation proposal.

Email: contact@nacrelnk.com

Address: Shenzhen, Guangdong, China

Services: E-paper hardware, Apple Find My / Google Find Hub, app download, cloud management, mass production

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