HOTUS R350C 4" Industrial PDA with Keypad | Android 13 Barcode Scanner

R350C 4-inch Industrial PDA | Qualcomm QCM2290 Quad-core | Android 13 | Barcode Scanning & NFC

Key Specifications At a Glance

Two Key Highlights

The R350C is a compact, lightweight industrial PDA designed for retail, warehouse, and field service workers who need reliable data capture without carrying a bulky device. Powered by Qualcomm's QCM2290 quad-core processor (2.0GHz, 11nm) and Android 13, it balances performance and battery efficiency. The 4.0-inch IPS HD display is readable indoors and out, while the full alphanumeric keypad enables fast data entry even with gloves. Optional modules include a high-accuracy 2D barcode scanner (≥3mil) and NFC for contactless authentication. With 4G LTE, dual-band Wi-Fi, and multi-constellation GNSS, the R350C keeps your team connected and productive.

Performance and Software Foundation

The Qualcomm QCM2290 is a dedicated IoT chipset fabricated on an 11nm process, delivering up to 30% lower power consumption than 28nm alternatives. Its four Cortex-A53 cores at 2.0GHz handle real-time scanning, background sync, and voice calls without lag. Android 13 provides enterprise-grade security, work profiles, and MDM compatibility. Our firmware stays close to AOSP, so custom apps and third-party scanning middleware run without modification. With 4GB RAM and 64GB storage (expandable to 256GB via TF), the R350C supports offline databases and heavy logging applications.

Connectivity for Any Environment

The R350C includes dual-band Wi-Fi (2.4GHz/5GHz) with 802.11ac support, ensuring fast roaming in warehouse environments. Bluetooth 5.0 connects to wireless printers, headsets, or external ring scanners. The 4G LTE modem covers FDD bands B1/B3/B5/B8 and TDD bands B34/B38/B39/B40/B41, with fallback to 3G WCDMA (B1/B8) and 2G GSM/EDGE (900/1800 MHz). This makes it suitable for most Asian and European markets. GPS, GLONASS, and BeiDou provide location tracking accurate to 2-3 meters outdoors.

Data Capture: 2D Barcode Scanning and NFC

The optional high-performance 2D imager reads barcodes as small as 3mil – including QR codes, Data Matrix, PDF417, and traditional 1D codes (Code 128, EAN-13, UPC-A). Dual side-mounted SCAN buttons can be pressed with either thumb, and the main keypad includes a dedicated SCAN key for two-handed operation. Vibration feedback and a tri-color breathing LED confirm scans in noisy environments. The optional NFC module (13.56MHz) supports ISO14443A/B, ISO15693, and M1/CPU tags – ideal for employee badges, contactless payments, or inventory checks.

Compact and Ergonomic Design

At 155mm × 70mm × 20.5mm and under 300g, the R350C fits easily in a pocket or on a belt holster. The 4.0-inch IPS HD display (480×800) is bright and responsive, with multi-touch that works with gloves. The physical keypad includes numeric keys (0-9), ｄｅｌｅｔｅ, Back, ENT, Fn, *, and # – allowing warehouse workers to enter quantities or SKUs without switching to a touch keyboard. The detachable 4000mAh battery supports hot-swapping: ｒｅｐｌａｃｅ a depleted pack without shutting down the device.

Camera and Audio for Documentation

The rear 8MP autofocus camera with flash captures proof-of-delivery photos, damage records, or shelf conditions. An optional front 8MP camera enables video calls for remote support. The loudspeaker, microphone, and voice call support turn the device into a communication tool – field workers can call supervisors without switching to a phone.

Typical Deployments

Retail Store Management: Scan price tags, check inventory levels, process returns, and manage loyalty cards via NFC. The lightweight design reduces arm fatigue during extended cycle counts.
   Warehouse & Inventory Control: Pickers scan barcodes on bins and items, enter quantities using the physical keypad, and sync to WMS over 4G/Wi-Fi. The 4000mAh battery lasts a full shift.
   Last-Mile Delivery: Drivers scan package barcodes, capture signatures or photos, and communicate via voice – all from a pocketable device.
   Field Service & Maintenance: Technicians scan equipment tags, log repair notes with the keypad, and take photos of serial numbers. GPS records service locations automatically.
   Access Control & Ticketing: Use NFC to verify employee badges or event tickets. The compact size makes it easy to hand-carry or wear on a lanyard.

Service & Support

★ Sample Evaluation: Request a test unit to verify scanning accuracy, battery life, and keypad ergonomics in your workflow.
   ★ OEM Customization: Logo printing, custom Android build, pre-loaded apps, and region-specific 4G band tuning.
   ★ ODM Development: From adding a UHF RFID module to upgrading the battery capacity, our engineering team delivers tailor-made solutions.
   ★ Bulk Orders: Standard configurations ship within 7–10 working days. Volume pricing, long-term supply agreements, and accessory bundles (charging cradle, spare batteries) available.
   ★ Certifications: CE, FCC, RoHS compliant.

For detailed specifications, volume pricing, or to request a custom configuration (2D scanner, NFC, front camera), please Contact Us directly – our engineers provide factory-direct support, SDK documentation, and sample loaner units for qualified projects.

Why Compact Industrial PDAs with Physical Keypads Still Win in the Field – R350C Deep Dive

In an era of full-touch smartphones, some might question the need for a physical keypad. Yet warehouse and retail workers consistently prefer tactile keys for data entry – especially when wearing gloves or walking. The R350C combines a compact 4-inch touchscreen with a full alphanumeric keypad, offering the best of both worlds. Here is why this design matters for productivity.

1. Keypad vs. Touchscreen: Speed and Accuracy

In a controlled test, warehouse workers entering 10-digit SKUs made 62% fewer errors using a physical keypad compared to a touchscreen. Tactile feedback allows eyes to stay on the task – scanning the next item – while fingers type. The R350C's keypad includes dedicated ｄｅｌｅｔｅ, Back, and ENT keys, reducing the number of keystrokes per entry. For inventory adjustments or quantity counts, this translates to measurable time savings over a shift.

2. 11nm QCM2290: Efficiency Without Sacrifice

Many entry-level PDAs still use 28nm processors from older generations. The R350C's QCM2290, built on 11nm, reduces active power draw by approximately 30%. In real terms, this means a 4000mAh battery lasts as long as a 5500mAh battery on older devices – keeping the device compact. Combined with Android 13's power management features, the R350C easily handles 10+ hours of mixed scanning and transmission.

3. 3mil Scanning: Reading Tiny Barcodes with Confidence

Electronics manufacturing and pharmaceutical traceability often require reading 3mil barcodes – the size of a grain of rice. The R350C's optional 2D imager resolves these high-density codes reliably, even on curved surfaces or low-contrast labels. In a test of 5,000 scans across various lighting conditions, the first-pass read rate exceeded 99.6%.

4. Real-World ROI Examples

Regional Retail Chain (150 stores): Replacing older 5.5-inch PDAs with R350C units reduced device weight by 40%, leading to fewer user complaints about fatigue. The physical keypad cut price-check time by 25% because staff no longer needed to tap on-screen keyboards. Annual labor savings exceeded $30,000.
   Third-Party Logistics Provider (200 devices): Using the R350C for putaway and cycle counting, operators reported 18% higher throughput in the afternoon shift compared to full-touch devices. The compact size allowed one-handed operation while holding a scanner or box.

The R350C proves that a compact PDA with a physical keypad, modern Qualcomm platform, and professional scanning can outperform larger, more expensive devices in real-world workflows. Sample units available for testing. OEM/ODM customization ready. Contact us for a demo unit or to discuss custom keypad layouts, NFC integration, or battery upgrades.

Related Products

• R860-S Thermal Printer PDA – 70mm/s Printing, Field Ready
• RFID Industrial PDA D802 – High-Power UHF, Warehouse King
• Handheld PDA F505 – Android 13 Full-Screen Terminal