BIWITECH SMARTTAG E-INK 2.1
Revolutionize Your Retail Pricing with Smart Digital Labels
In the ever-evolving retail landscape, pricing accuracy and operational efficiency are critical. The SmartTag Biwitech E-Ink 2.1 ensures real-time updates, precise pricing, and seamless customer experience, eliminating manual errors and boosting profitability.


Key Features
Price Accuracy & Reliability
Eliminate pricing discrepancies and enhance customer confidence by ensuring that displayed prices always match the register.
Real-Time Promotions
Quickly implement price adjustments and promotional campaigns to stay competitive in a fast-moving market.
Increased Margins & Sales
Optimize pricing strategies to boost margins and maximize sales with seamless updates.
Reduced Waste & Labor Costs
Say goodbye to manual price tag changes, reducing labor costs and environmental impact.
Ensure the Correct Price
Prevent checkout disputes and enhance the shopping experience by ensuring pricing consistency across all channels.
Smart & Efficient Digital Labels
With e-paper technology, ultra-low energy consumption, and long-lasting 3-5 year battery life, SmartTag Biwitech E-Ink 2.1 provides a future-ready solution for digital pricing needs.
E-paper Technology
Crystal clear display for easy reading
Ultra-low Energy
Efficient power consumption for extended use
Long Battery Life
3-5 years of operation on a single charge
Product Dimensions
Precise Measurements
70mm
Width
34.7mm
Height
13.6mm
Depth
Display Size
2.1-inch E-ink display with 250x122 pixel resolution

Benefits
Operational Efficiency
Automate pricing updates and reduce manual workload, allowing staff to focus on customer service.
Improved Customer Experience
Provide clear and up-to-date information, ensuring transparency and trust at the shelf.
Cost Savings & Sustainability
Reduce the need for printed labels, lowering waste and environmental footprint.
Ideal Applications
Retail Stores
Accurate and automated price updates
Supermarkets
Instant promotions and dynamic pricing
Convenience Stores
Enhanced efficiency and reduced errors
Warehouses & Logistics
Inventory tracking and barcode integration
Simplified, Powerful, and Efficient
With the Integrate SmartTag Controller, no software installation is required—the system operates directly via your browser. Enjoy hassle-free setup and powerful performance with:
Multi-function Integration
Combining data processing, routing, and transmission into one efficient device.
Direct ERP Connectivity
Seamlessly integrates with your ERP system for real-time data synchronization.
Browser-Based Interface
Simplifies management and reduces IT overhead.
Effortless Scalability
Supports multiple ESLs without performance degradation.
Streamline your operations with the simplicity and power of the Integrate SmartTag Controller

Technical Specifications
Feature | Specification |
---|---|
Part Number | SMARTTAG_PE21_V4 |
Dimensions (mm) | 2.76in x 1.37in x 0.54in (70x34.7x13.6mm) |
Screen Size | 2.1 inch |
Display Technology | E ink |
Active display area | 0.93in(H) x 1.91in(V) (23.71(H) x 48.55(V) mm) |
Resolution | 250x12 pixels |
Pixel size | 0.93in(H) x 1.91in (V) (23.71(H) x 48.55(V)mm) |
Pixel Colors | Black/White |
Viewing angle | Nearly 180° |
Operating temperature | 0-50°C (32°F - 122°F) |
Product weight | 32.5g (0.07 lb) |
Battery | 1200mAh (CR2450*2) |
Battery life | 3-5 years |
ESL operating frequency | 2.4GHz |
Communication radio | 30 m |
DIY Stencil Design | Available |
Supported content formats | Text/Image/QR Code/Barcode |
Accessories
SmartTag Family Applications

From retail pricing to meeting room management, SmartTag E-INK displays offer versatile solutions for any business need.
Ready to Upgrade Your Store?
Empower your retail business with SmartTag Biwitech E-Ink 2.1 and experience a smarter, faster, and more efficient way to manage pricing.