R51A-5G 8 inch 5G rugged Android tablet with 8GB RAM and 9400mAh Removable Battery RJ45

R51A-5G is an 8 inch 5G rugged Android tablet built around Android 15, MTK6877 and 8GB/128GB memory. As a small tablet with cellular connectivity, it combines a 700 cd/m² sunlight-readable display, Wi-Fi 6, IP67 ingress protection, 100M RJ45 and a 9400mAh removable battery for compact field deployments.
Key Configuration Highlights

• Product Type: 8-inch 5G rugged Android tablet
• System & Processor: Android 15 with MTK6877 octa-core processor
• Memory & Storage: 8GB RAM + 128GB ROM (Optional: 8GB RAM + 256GB ROM)
• Display & Touch: 8-inch 16:10 IPS, 1280 × 800, 700 cd/m² sunlight-readable, G+G 10-point touch, ≥7H, glove touch (Optional: 1920 × 1200 IPS; 1000 cd/m²; wet-hand touch)
• Rugged Protection: IP67 ingress protection, 1.22 m drop rating, −20°C to 60°C operating temperature
• Cellular & Wireless: 5G NR + 4G/3G/2G, Wi-Fi 6, Bluetooth 5.2, GPS/BeiDou/Galileo/GLONASS
• Battery & Power: 9400mAh / 3.8V removable battery; DC 5.3V/3A input
• Data Capture: NFC (Optional: 1D/2D barcode scanner; ID card reader; UHF RFID; LF RFID; RTK GNSS)

Product Details

Explore the core performance, rugged design, interfaces, power, mounting, and software features of this device.

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01
CONNECTED ANDROID PERFORMANCE

Compact 5G Computing Platform for Mobile Field Operations

R51A-5G combines an 8-inch rugged form factor with Android 15, MTK6877 processing and cellular connectivity for professionals working across mobile environments. As an 8 inch 5G rugged Android tablet, it provides a compact platform for applications requiring local computing, wireless communication and field-ready deployment. With 8GB memory, 128GB internal storage and Wi-Fi 6 connectivity, the device supports daily operational workflows while maintaining a portable size for transportation, inspection and service scenarios.
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Snapshot

Operating System
Android 15.0
Processor Platform
MTK6877 Octa-Core Processor
Memory
8GB RAM
Storage
128GB ROM
Compact Android Field Platform
R51A-5G combines Android 15 with MTK6877 processing in an 8-inch rugged enclosure, creating a portable platform for mobile work applications.
Tablet with Cellular Connection
Built-in cellular capability enables connected workflows where users need communication and data access beyond fixed Wi-Fi environments.
Flexible Local Resources
8GB RAM and 128GB storage provide a balanced configuration for application deployment, local files and operational data.
Wireless-Ready Deployment
Wi-Fi 6, Bluetooth 5.2 and GNSS support flexible integration into connected field environments.
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02
SUNLIGHT-READABLE MOBILE DISPLAY

8-Inch Visibility for Outdoor Field Operation

R51A-5G integrates an 8-inch IPS display designed for compact mobile operation. The 700 cd/m² sunlight-readable screen improves visibility in bright working environments, while the 16:10 format provides a practical balance between portability and information display. For operators requiring a more detailed viewing experience, higher resolution and brightness options are available depending on configuration requirements.
8-Inch IPS Display
The 8-inch 16:10 IPS display provides a compact viewing area suitable for mobile inspection, service applications and field data entry.
Sunlight-Readable Brightness
The standard 700 cd/m² display supports improved readability in bright environments where normal tablet brightness may be insufficient.
High-Resolution Display Option
An optional 1920 × 1200 resolution display configuration is available for projects requiring higher image detail.
Industrial Touch Operation
The G+G touch structure supports 10-point touch operation with 7H surface hardness.
01.
IP67 Protection
02.
1.22m Drop Rating
03.
Operating Temperature
04.
Rugged Glass Structure
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03
COMPACT FIELD PROTECTION

IP67 Rugged Structure for Mobile Deployment

R51A-5G combines compact 8-inch portability with an IP67-rated rugged enclosure designed for demanding field environments. The structure supports protection requirements involving dust and water exposure, while the documented drop rating and operating temperature range help buyers evaluate deployment suitability.
Field Handling Protection
The IP67-rated structure helps reduce concerns when deploying the tablet in environments where dust and water exposure are common considerations.
Compact Rugged Design
The 8-inch format balances mobility and protection, allowing operators to carry a connected Android tablet without moving to a larger device form factor.
Temperature Range Support
The operating temperature range of -20°C to 60°C supports a wider range of outdoor and industrial deployment environments.
Durable Touch Surface
The G+G touch structure with 7H hardness supports repeated operator interaction during field tasks.
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04
FIELD CONNECTIVITY OPTIONS

Flexible Interfaces for Industrial Integration

R51A-5G combines wireless communication with practical wired interfaces for field environments where users need both remote connectivity and local equipment integration. Along with 5G cellular communication, the tablet provides USB, Ethernet, POGO and expansion interfaces to support data transfer, charging and deployment accessories.

Core Interfaces

100M Ethernet (RJ45)
Provides wired network connectivity for environments requiring stable LAN access, equipment connection or fixed workstations.
USB Type-A
Supports connection with compatible USB peripherals and external devices.
USB Type-C
Provides a compact connection interface for charging and data transfer.
12-Pin POGO Connector
Supports connection with compatible docking and expansion accessories.
SIM / TF Card Interface
Supports cellular SIM installation and TF card expansion for mobile communication and local storage needs.

R51A-5G Interface Layout

Kcosit R51A-5G rugged Android tablet side interface diagram showing power and volume buttons, optional scan window, programmable function key, 12-pin interface, DC input, SIM and TF card slot, USB Type-C, RJ45 Ethernet, headphone jack, and USB-A port.

Expansion Support

Micro HDMI Interface
Micro HDMI is available for customized configurations requiring external display connection.
DC Power Input
Supports direct DC 5.3V/3A power input for device charging.
Docking Integration
The POGO interface provides a connection path for compatible docking solutions.
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05
REMOVABLE FIELD POWER

9400mAh Removable Battery with Charging Dock Support

R51A-5G is equipped with a 9400mAh removable battery designed for mobile teams that require a maintainable power solution in connected field environments. The removable battery architecture helps organizations plan battery replacement and long-term device servicing. For fixed deployment scenarios, the optional Charger Docking solution supports both tablet charging and spare battery charging, allowing operators to prepare additional batteries while keeping the tablet powered.
Rear view of Kcosit R51A-5G rugged Android tablet showing a removable battery and battery level indicator for quick replacement, extended operating time, and reliable field use.

Power Snapshot

Battery Capacity
9400mAh / 3.8V Removable Battery
Battery Architecture
Removable battery design for service and replacement planning
Standard Charging Input
DC 5.3V / 3A
Charging Dock Support
Optional Charger Docking supports charging one tablet and one spare battery simultaneously

Deployment Fit

Kcosit Tab-05 deployment fit unified icon for rugged tablet power and endurance support
Removable Battery Design
The removable battery structure allows organizations to manage battery replacement cycles and maintain device availability during long-term deployment.
Kcosit Tab-05 deployment fit unified icon for rugged tablet power and endurance support
Charger Docking Solution
The compatible Charger Docking accessory provides a practical charging workflow by supporting simultaneous charging of one R51A-5G tablet and one additional battery.
Kcosit Tab-05 deployment fit unified icon for rugged tablet power and endurance support
Field Battery Preparation
Teams can prepare spare batteries through the charging dock, helping simplify battery management for mobile operations.
Kcosit Tab-05 deployment fit unified icon for rugged tablet power and endurance support
Controlled Battery Replacement
The removable battery is designed for planned replacement and maintenance scenarios. It should not be described as a hot-swappable battery system.
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06
COMPACT MOUNTING FLEXIBILITY

Handheld Mobility with Integrated Rear Mounting Design

R51A-5G combines an 8-inch compact rugged tablet design with flexible deployment options for mobile and fixed-use environments. The rear housing includes dedicated mounting screw holes with a 176.0 × 122.0mm hole pitch and M3 × 4.5mm screw specification, providing a defined mechanical mounting interface for compatible installation solutions. Together with its compact size, removable battery design and wireless connectivity, R51A-5G can be adapted for handheld field operation or project-specific fixed deployment requirements
Handheld
Fixed Mount
Field Deployment

Mounting Options

Kcosit R51A-5G rugged Android tablet with an adjustable rear hand strap for secure grip, comfortable handheld operation, and mobile field use.
Handheld Field Operation
The compact 8-inch form factor supports mobile inspection, service tasks and connected field workflows where portability is required.
Kcosit R51A-5G rugged Android tablet showing the rear screw mounting interface and mounting plate for secure fixed installation on equipment, brackets, and industrial systems.
Rear Screw Mounting Interface
The rear housing provides mounting screw holes with: Hole Pitch: 176.0 × 122.0mm,Screw Specification: M3 × 4.5mm This provides a defined mechanical interface for compatible mounting structures.
Kcosit R51A-5G rugged Android tablet installed in a docking station for secure placement, charging, data connectivity, and industrial workstation use.
Docking Deployment
The POGO interface supports connection with compatible docking accessories for charging and deployment scenarios.
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07
DATA ACQUISITION

Flexible Data Capture Options for Connected Field Work

R51A-5G provides optional data capture configurations for projects requiring additional identification, scanning or positioning capabilities. The compact 8-inch 5G rugged Android tablet can be configured with different acquisition modules according to application requirements, while keeping the main device positioning focused on connected mobile computing.

Data Capture Capability

Barcode Scanning
Optional Scanner Module Supports barcode-based workflows where fast identification and data entry are required.
ID Card Reading
Optional ID Card Reader Provides an option for projects requiring identity-related data capture.
RFID Identification
Optional UHF RFID / LF RFID Supports different RFID application requirements depending on deployment needs.
RTK Positioning
Optional RTK GNSS Available for projects requiring higher-precision positioning capability.
Kcosit R51A-5G rugged Android tablet used for 2D barcode scanning, package identification, inventory tracking, and warehouse logistics data collection.
2D Barcode Scanning for Mobile Identification Workflows
Enable fast barcode-based data collection with an optional 2D scanner configuration. R51A-5G supports mobile identification tasks such as inventory checking, asset verification and field service operations where operators need quick and accurate code scanning directly from a rugged Android tablet.
Kcosit R51A-5G rugged Android tablet used for UHF RFID reading, long-range inventory identification, warehouse tracking, and logistics data collection.
UHF RFID Reading for Long-Range Asset Identification
Support extended-range identification workflows with an optional UHF RFID configuration. R51A-5G can be adapted for applications requiring efficient asset tracking, warehouse operations and equipment management with RFID-based data capture.
Kcosit R51A-5G rugged Android tablet used for LF RFID reading, access control, identity verification, and industrial data collection.
LF RFID Identification for Specialized Asset Tracking
An optional LF RFID configuration provides an additional identification method for projects requiring low-frequency RFID technology in equipment management, industrial tracking and field applications.
Kcosit R51A-5G rugged Android tablet used with an RTK GNSS receiver for high-precision positioning, surveying, mapping, and outdoor field data collection.
RTK GNSS Positioning for Precision Field Applications
Optional RTK GNSS configuration supports projects requiring enhanced positioning capability for surveying, mapping and location-sensitive field operations.
Application Scenarios

See how this rugged device supports real-world industrial workflows across different industries.

Connected Field Applications with Compact 5G Mobility

R51A-5G is designed for organizations requiring a compact small tablet with cellular capability for connected field operations. The combination of 8-inch portability, 5G connectivity, Wi-Fi 6, sunlight-readable display, IP67 protection and removable battery supports mobile workflows where operators need reliable access to applications and information outside traditional office environments.

Connected Field Service

Technicians working across multiple locations can use the compact 8-inch tablet to access applications, communicate through cellular networks and complete service tasks with portable computing support.

Remote Infrastructure Inspection

Inspection teams can use the sunlight-readable display and IP67-rated structure for outdoor environments where visibility and device protection are important.

Utility Field Operations

Utility operators can deploy the tablet for connected workflows requiring wireless communication, location information and optional data capture functions.

Mobile Equipment Diagnostics

Maintenance personnel can use the tablet as a portable computing terminal for equipment-related applications and service workflows.

Transport Field Operations

Transport teams can use the connected rugged tablet for mobile applications requiring communication, positioning and operational data access.

Asset Management with Optional Readers

Organizations can configure optional barcode, RFID or ID modules for asset-related workflows requiring additional identification capability.
Optional Modules & Accessories

Select optional data capture modules, expansion features, and compatible accessories to match your deployment needs.

Accessories for Flexible R51A-5G Deployment

R51A-5G supports a range of optional accessories designed to improve portability, charging convenience, device mounting and screen protection. These accessories allow organizations to adapt the rugged Android tablet to different field environments, including handheld operation, desktop charging, vehicle deployment and fixed installation scenarios.
R51A-5G-Adjustable-Tablet-Mounting-Bracket
Optional

Back-Clip Mount

Provides a mounting solution for applications requiring hands-free device positioning. The back-clip mount helps integrate the tablet into specific operational setups while keeping the device accessible.
R51A-5G-Tempered-Glass-Screen-Protector
Optional

Tempered Glass Screen Protector

Provides additional protection for the touchscreen surface during daily field operation. The screen protector helps reduce concerns related to scratches and repeated user interaction.
R51A-5G-Tablet-Charging-Dock
Optional

Charging Dock

Provides a dedicated charging solution for desktop or fixed working environments. The charging dock helps simplify device placement and charging management during regular operation.
R51A-5G-Four-Point-Hand-Strap-Shoulder-Strap-Carry-Handle-Set
Optional

4-Point Hand Strap / Hand Carrier / Shoulder Strap

Designed for mobile operators who need additional carrying flexibility during field activities. The carrying accessories help improve device handling and portability for inspection, service and outdoor workflows.
R51A-5G-Vehicle-Charger
Optional

Vehicle Charger

Provides a power solution for mobile deployment scenarios where charging is required inside vehicles. The vehicle charger supports field teams operating across transportation and mobile service environments.
R51A-5G-Capacitive-Touch-Stylus
Optional

Capacitive Stylus

Provides an alternative input method for applications requiring more precise touchscreen interaction. The capacitive stylus can support detailed operation tasks while maintaining compatibility with the tablet touchscreen interface.

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Technical Specifications

Review key hardware, display, connectivity, power, and environmental specifications for project evaluation.

Procurement-Ready Technical Specifications

Review the key technical specifications of this device, including system performance, display, connectivity, wireless communication, power, and rugged protection, to support project evaluation and procurement decision

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System & Computing

Product Model
R51A-5G
Product Type
8-inch Rugged Android 5G Tablet
Operating System
Android 15.0
Processor / Chipset
MediaTek MT6877 Octa-Core, 2 × Cortex-A78 @ 2.4GHz + 6 × Cortex-A55 @ 2.0GHz
Memory
8GB RAM
Storage
128GB ROM (Optional: 256GB ROM)
KCOSIT Tab11 display touch and input icon for rugged tablet screen and touch specifications

Display, Touch & User Input

Display Size
8-inch, 16:10
Screen Resolution
1280 × 800 IPS (Optional: 1920 × 1200 IPS)
Screen Brightness
700 nits, Sunlight-Readable (Optional: 1000 nits High-Brightness Display)
Touch Panel
G+G 10-Point Capacitive Touchscreen, Supports Medical Rubber Glove Touch (Optional: Wet-Hand Touch)
Glass / Protection
AF Anti-Fingerprint Coating, ≥7H Surface Hardness
Input Modes
Finger Touch, Medical Rubber Gloves (Optional: Wet-Hand Touch, Capacitive Stylus)
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Interfaces & Expansion

USB / Type-C
1 × USB Type-C 2.0 with OTG; 1 × USB Type-A 2.0; 1 × TF Card Slot, Supports up to 1TB Expansion
LAN / Ethernet
1 × RJ45 Ethernet Port, 100Mbps
Video Output
1 × Micro HDMI (Customizable)
Dock / Pogo Connector
1 × 12-Pin POGO Connector, USB + Charging
Industrial / Vehicle Interfaces
1 × 3.5mm Audio Jack; 1 × Micro SIM Slot; Micro HDMI (Customizable)
KCOSIT Tab11 wireless GPS and data capture icon for rugged device communication and scanning specifications

Wireless & Data Functions

Wi-Fi / Bluetooth
Wi-Fi 802.11 a/b/g/n/ac/ax, Dual-Band 2.4GHz + 5.8GHz, Wi-Fi 6; Bluetooth 5.2 BLE, Class 1, up to 10m
Cellular Network
5G NR: n1/n3/n5/n38/n41/n77/n78/n79; 4G LTE-TDD: B34/B38/B39/B40/B41; LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B17/B20/B28A/B28B; 3G WCDMA: B1/B2/B5/B8; 2G GSM: B2/B3/B5/B8
GNSS / GPS
GPS + BeiDou + Galileo + GLONASS (Optional: Single-System BeiDou Positioning; RTK High-Precision GNSS)
Data Capture
1D/2D Barcode Scanner (Optional: N1 Standard Scanner Engine or N670 High-End Scanner Engine with OCR-A/OCR-B Support)
RFID / NFC
13.56MHz NFC, Supports ISO 14443A / 14443B / 15693; Rear NFC by Default (Optional: UHF RFID ≤3m or ≤5m; LF RFID 125kHz, 1–3cm)
Camera / Identity Modules
Front: 8MP Fixed Focus (Optional: 16MP); Rear: 16MP Auto Focus with Flash (Optional: 48MP); ID Card Reader (Optional)
KCOSIT Tab11 power battery and installation icon for rugged device charging and mounting specifications

Power, Battery & Installation

Battery / Power Source
9400mAh, 3.8V Removable Battery
Runtime / Power Consumption
Up to 9 hours under the stated video playback test
Power Input
5.3V / 3A DC Input
Charging / Adapter
5.3V / 3A DC Power Adapter (Standard)
Mounting / Carrying
2-Point Hand Strap (Standard) (Optional: 4-Point Hand Strap, Hand Carrier, Shoulder Strap, Back-Clip Mount, Charging Dock, Vehicle Charger)
KCOSIT Tab11 rugged mechanical and compliance icon for industrial tablet protection and certification specifications

Ruggedness & Mechanical Specifications

IP Rating
IP67 Waterproof
Drop / Shock / Vibration Resistance
1.22m Drop Resistance; Compliant with GJB 150.18A-2009 / GJB 150.1A-2009 / MIL-STD-810H
Operating / Storage Temperature
Operating: −20°C to 60°C; Storage: −30°C to 70°C
Humidity
Up to 95% RH, Non-Condensing
Dimensions / Weight
Tablet: 232.2 × 151.3 × 30.4 mm, 850g; Packaged: 335 × 175 × 68 mm, 1381g
Materials & Certifications
Material: ABS+PC+TPU; Compliance: CCC / CE / RoHS / FCC / UL / Energy Conservation Certification; MIL-STD-810
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Frequently Asked Questions

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Answers Before You Request A Quote

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What is R51A-5G 8 inch 5G rugged Android tablet?

R51A-5G is an 8 inch 5G rugged Android tablet designed for mobile field operations that require compact computing, wireless connectivity and rugged protection. It combines Android 15, MTK6877 octa-core processing, 5G cellular connection, Wi-Fi 6, IP67 protection and a 9400mAh removable battery for connected outdoor and industrial applications.
Yes. R51A-5G is a tablet with cellular connection supporting 5G NR together with 4G/3G/2G cellular communication. It also provides Wi-Fi 6, Bluetooth 5.2 and multi-system GNSS support, helping field teams maintain connectivity when working across different locations.
An 8 inch Android tablet provides a practical balance between portability and screen visibility for users who need a compact device for daily field tasks. R51A-5G combines an 8-inch IPS display, rugged protection, wireless connectivity and optional data capture configurations for inspection, service and mobile workflow applications.
Yes. R51A-5G features a 700 cd/m² sunlight-readable display designed to improve screen visibility in bright outdoor environments. The 8-inch IPS panel provides a compact viewing area, while optional display configurations are available for projects requiring higher resolution or brightness options.
R51A-5G uses a 9400mAh removable battery designed for flexible maintenance and replacement planning in mobile deployments. The optional Charger Docking solution can charge one R51A-5G tablet and one additional removable battery at the same time, helping organizations prepare spare batteries for field operations.
Yes. R51A-5G provides a 100M RJ45 Ethernet interface for wired network requirements and an IP67 rugged design for demanding field environments. The tablet also supports optional configurations including barcode scanner, ID card reader, UHF RFID, LF RFID and RTK GNSS modules to meet different data collection requirements.

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