Product Type | Mobile Label and Receipt Printer |
Model | RuggedJet RJ4250WB |
Printer Technology | Direct Thermal |
Color Output | Monochrome |
Print Width | Up to 4 inches |
Memory (RAM) | 256 MB |
Processor Speed | 800 MHz |
Form Factor | Portable / Rugged Mobile |
Power Source | Rechargeable Lithium-Ion Battery (sold separately) |
Battery Capacity | 2850 mAh (optional accessory) |
Print Method | Direct Thermal |
Brother RuggedJet RJ4250WB Mobile 4in DT Label Printer with USB, Wi-Fi, Bluetooth



Key Benefits

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- Ideal for mobile professionals needing fast, high-quality label printing in demanding environments
- Supports all major wireless and wired connectivity options for maximum deployment flexibility
- Offers enterprise-grade device management capabilities via SOTI Connect certification
Product Overview
The Brother RuggedJet RJ4250WB is engineered for high-performance mobile printing in tough environments. This direct thermal, monochrome printer supports formats such as barcode and label printing, ideal for field service, warehousing, retail, logistics, and healthcare applications. Designed with wireless flexibility in mind, it features robust interface options including USB, Bluetooth with MFi, Wi-Fi, and NFC, enabling easy pairing and superior mobility across devices and platforms. The SOTI Connect certification ensures seamless device management and integration with enterprise mobility frameworks.
Built with a compact form factor (153 mm wide, 159 mm deep, 68 mm high), the RJ4250WB is both portable and rugged. Its 256 MB of RAM allows efficient processing of complex print tasks using various emulations, including ESC/P, Raster, and P-touch Template. Designed to meet the needs of professionals, the printer comes with a 2-Year Premier Limited Warranty and an included belt for convenient carrying. It operates with Windows systems and offers optimized workflows through its advanced connectivity and output quality.
Whether on the warehouse floor or in the field, the RuggedJet RJ4250WB provides a reliable printing solution that minimizes downtime and enhances productivity. It’s an ideal choice for industries seeking fast, mobile, label and receipt printing with broad wireless compatibility and enterprise-grade device management support.
Specifications
Product Overview
Wireless Features
Wi-Fi Standards | IEEE 802.11a/b/g/n (2.4GHz and 5GHz) |
Security Protocols | WEP, WPA1/2-PSK (TKIP/AES), WPA2-Enterprise |
Bluetooth Version | Bluetooth 4.2 + LE |
MFi Certification | Yes (Made for iOS devices) |
NFC Pairing | Supported with compatible devices |
Compliance & Origin
Country of Origin | China |
TAA Compliant | No |
Certifications | FCC, IC, CE, UL, Energy Star Certified |
EMC Standards | FCC Part 15B Class B, ICES-003 |
Advanced Security Features
Wi-Fi Security Protocols | WEP, WPA/WPA2-PSK, WPA2 Enterprise (EAP-TLS, PEAP, EAP-FAST) |
Connection Authentication | 802.1x Authentication Support |
Interfaces
USB Interface | USB 2.0 Full Speed |
Bluetooth | Bluetooth 4.2 with MFi (Made for iOS) Certification |
Wi-Fi | 802.11a/b/g/n dual band (2.4GHz / 5GHz) |
NFC | Yes, for tap-to-pair functionality |
Interface Types | USB, Wi-Fi, Bluetooth, NFC |
Supported Emulations | ESC/P, P-touch Template, Raster |
Physical & Environmental
Width | 153 mm |
Depth | 159 mm |
Height | 68 mm |
Weight | 850 g (without battery or media) |
Drop Protection | Up to 6.6 ft / 2 m drop protection |
IP Rating | IP54 with optional case |
Operating Temperature | -20°C to 55°C (-4°F to 131°F) |
Operating Humidity | 10% to 90% RH (non-condensing) |
Cloud Management & Licensing
Remote Management | SOTI Connect Certified |
Supported OS | Windows |
Mobile Device Support | Android, iOS with SDKs available |
Management Tools | Brother SDKs, Web-Based Management, SOTI Connect |