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Compatible with
Full warranty

WD4 Ring Scanner


With its lightweight design and seamless pairing to your host device, the WD4 Ring Scanner is your perfect companion. Designed to comfortably sit on your finger, the ring shape of the WD4 allows for a secure fit, ensuring it stays in place even during rigorous tasks. Whether you're carrying boxes or engaged in other daily activities, scan hands-free and multitask with the WD4 Ring Scanner!

1D & 2D
LED aimer
1.2M drop
Bluetooth 5.0
3 years
Warranty 3 Years

Suggested industries



Hands-Free Scanning Experience

Enjoy the convenience of hands-free scanning with the WD4 Ring Scanner! With its exceptional performance, the WD4 can effortlessly scan a diverse array of 1D and 2D barcodes. Equipped with a versatile rotating head, this scanner fits perfectly on your left or right hand, ensuring seamless functionality even during routine tasks like carrying boxes. Additionally, the trigger button can be easily operated with a light press of your thumb.

Reliable Seamless Connectivity

Enjoy the freedom of wireless connectivity with the WD4! Featuring Bluetooth 5.0, the WD4 Ring Scanner enables reliable and fast communication with your preferred devices. It effortlessly pairs with Android mobile computers, tablets, PCs, and smartphones, as well as IOS and Windows devices via EasyConnect.

Customizable Configuration with EasySet

The WD4 Ring Scanner is compatible with the Newland EasySet configuration software, providing users with the ability to customize their devices. With EasySet, you can effortlessly manipulate scanned data, configure settings, and export saved files in various formats. With 1MB storage memory and EasySet compatibility, the WD4 becomes a valuable data collector not only for online but also for offline applications.

Intuitive Good-Read Feedback

Experience clear and instant feedback with the WD4 Ring Scanner. It utilizes a combination of LED lights, audio beeps, and vibrations to provide you with clear feedback on successful scans. These same indicators can also alert the device's communication status and battery life, keeping you informed and ensuring uninterrupted workflow.

Full-Shift Battery

Thanks to the large 670mAh battery capacity, you can enjoy up to 10 hours of uninterrupted scanning time. The low-power Bluetooth 5.0 technology, combined with the energy-efficient scan engine, gets you comfortably through a full shift without a need to recharge.

Efficient Multi-Device Charging

In addition to the supplied magnetic to USB cable for individual charging, you have the option to choose two-bay charging cradles that can be linked together to create a multi-charging solution using a single power supply. With the ability to daisy-chain up to 5 cradles, you can charge up to x10 WD4 Ring Scanners simultaneously, reducing clutter and optimizing charging efficiency.


Technical specifications

Data Capture
1D Code128, UCC/EAN-128, AIM128, EAN-8, EAN-13, ISBN/ISSN, UPC-E, UPC-A, Standard 25, Codabar, Industrial 25, Code39, Code 93, Code 11, Plessey, MSI-Plessey, GS1-DataBarTM(RSS), Matrix 2 of 5, Interleaved 2 of 5, ITF-6, ITF-14
2D PDF417, QR Code, Data Matrix, Aztec, Micro PDF, Micro QR
Image Sensor 640*480
Aiming Red LED
Illumination White LED
Resolution ≥ 3mil (Code128)
Depth of Field EAN 13 (13mil) 55-280 mm
Depth of Field Code 39 (5mil) 55-145 mm
Depth of Field PDF417 (6.7mil) 40-130 mm
Depth of Field DataMatrix (10mil) 40-140 mm
Depth of Field QR (15mil) 30-195 mm
Scan Angle Pitch: ±60°; Roll: 360°; Skew: ±60°
Minimal Print Contrast 20% (Code128 10mil)
Memory Flash 1MB, >16000 EAN 13 codes
Battery Type 4.35V 670mAh (rechargeable Li-ion battery)
Dimensions (mm) 38mm(W) × 52.5mm(L) × 44.2mm(H)
Expected Battery Life Up to 8 hours (depending on the intensity of scanning applications)
Expected Charge Time less than 2 hours
Notifications Buzzer (Sound), Visual (LED), Vibrator (Vibration)
Power Supply Input: AC 100~240V, 50~60Hz; Output: DC 5V, 1A Toggle Actions
Weight 48 g
Bluetooth Transmission Range 40m (wide empty area)
WPAN RADIO Bluetooth 5.0
Operating Temperature -20℃ to +50℃
Storage Temperature -40℃ to +70℃
Charge Temperature 0℃ to +45℃
Humidity 5% to 95% (non-condensing)
Electro Static Discharge (ESD) ±12 kV (air discharge); ±8kV (contact discharge)
Drop 1.2m
IP Rating IP42
Hardware CE, RoHS


Name View Type
WD4 Ring Scanner - print version WD4 Ring Scanner.pdf View Datasheet
WD4 User Guide View User Guide
WD4 Ring Scanner Quick Start Guide View Quick Start Guide
SCD20 Charging Cradle Quick Start Guide View Quick Start Guide
EasySet View Software

Available versions

Partnumber Description
WD4-BS20-SR Bluetooth ring scanner, 2D CMOS imager with USB-A to magnetic connector cable.


WD4 Charging Cradle

WD4 Charging Cradle (NLS-SCD20) - dual-slot, connectable up to 5 pcs

Chargers & Cradles
Adapter AD60-D-M

AD60-D-M Multiplug adapter (EU/UK/US/IN), 19V/3.2A for SCD20