Who We Are
Over a Decade of Excellence in Rugged Device Manufacturing
Founded in 2014 and headquartered in Shenzhen, China, Shenzhen Phonemax Technology Co., Ltd. is a Chinese National High-Tech Enterprise and specialized OEM/ODM manufacturer in the rugged mobile industry. We integrate industrial design, rugged hardware engineering, custom Android OS and firmware, application integration, production and field-reliability validation. From heavy-duty smartphones to industrial rugged tablets and professional handheld terminals, Phonemax provides dependable mobile solutions for enterprise partners, distributors and professionals in more than 100 countries and regions.
Engineering & Production
From Innovative Idea to Reliable Rugged Hardware
Our manufacturing and quality-control capabilities support the full product lifecycle—from rugged hardware engineering and custom Android integration to production, inspection and validation. Depending on the model and project requirements, testing can include water resistance, dust ingress, drop, vibration, temperature and functional performance. Selected hazardous-environment solutions follow project-specific ATEX compliance requirements under EU Directive 2014/34/EU.
Whether you need custom enterprise hardware, Android application integration, private-label products or regional distribution support, Phonemax provides flexible and scalable OEM/ODM solutions for international B2B projects.
What We Create
A complete portfolio of rugged intelligent devices.
Our products combine practical functionality with durable engineering for consumer, outdoor, industrial and professional applications.
Quality & Craftsmanship
Quality built into every stage.
Reliable rugged devices require careful attention from component handling and assembly through inspection and final verification. Standardized production processes and quality checks help us maintain consistency across every project.
We continue to improve our engineering, manufacturing and quality-management practices to meet the needs of customers in different markets.
Global Connections
Built in Shenzhen. Connected worldwide.
Phonemax products serve customers in more than 100 countries and regions. Through international exhibitions and direct cooperation, we stay close to distributors, retailers, enterprise customers and technology partners—and turn real market feedback into better products and stronger long-term relationships.
Experience & Compliance
Facts that define Phonemax.
Clear company facts and model-specific compliance information for distributors, enterprise buyers and technology partners.
Why Phonemax
A practical partner for rugged mobility.
Practical cooperation built around your product, market and project requirements.
Choose the Right Path for Your Needs
Request product information for distribution and OEM/ODM projects, or explore Phonemax rugged devices for outdoor and professional use.
Phonemax R4 mini: The World's Smallest Android 14 Rugged Phone
Size: 121mm*59.5mm*15.5mm
Weight: 150g
Bands:
Europe 4G: FDD: B1, B3, B5, B7, B8, B19, B20, B28A, B28B. TDD: B38, B40, B41
Europe 3G: B1, B5, B6, B8
Europe 2G: B2, B3, B5, B8
America 4G: FDD: B2, B4, B5, B7, B17, B28A, B28B
America 3G: B1, B5, B6, B8
America 2G: B2, B3, B5, B8
Size: 121mm*59.5mm*15.5mm
Weight: 150g
Bands:
Europe 4G: FDD: B1, B3, B5, B7, B8, B19, B20, B28A, B28B. TDD: B38, B40, B41
Europe 3G: B1, B5, B6, B8
Europe 2G: B2, B3, B5, B8
America 4G: FDD: B2, B4, B5, B7, B17, B28A, B28B
America 3G: B1, B5, B6, B8
America 2G: B2, B3, B5, B8
PRODUCT QUESTIONS
Frequently asked questions
Is the R4 mini practical for daily use?
Yes. Its compact layout is designed for one-handed calls, messaging, navigation and everyday apps. Users who frequently type long documents or watch extended video may prefer a larger display.
Does the compact size reduce rugged protection?
No. The R4 mini is designed with IP68/IP69K protection and a reinforced rugged structure. Protection can decrease with wear or damage, so keep all covers and seals properly closed.
How does the R4 mini night-vision camera work?
Its infrared night-vision camera captures monochrome images in darkness for camping, wildlife observation, inspections and night work.
Which R4 mini network version should I choose?
Choose the EU/Asia version for supported networks in Europe and many Asian regions, or the US/Americas version for supported networks in North and Latin America. Confirm the exact carrier bands before ordering.
Does the R4 mini support NFC?
Yes. The R4 mini supports NFC for compatible contactless functions. Payment and transit availability depends on the installed apps, bank, service provider and region.