4G Dual Dash Cam: Continuous Front & Rear Monitoring for Fleet Intelligence

GreatWill provides professional-grade 4G dual dash cams with over 18 years of manufacturing experience. Featuring 2K+1080P dual recording, real-time live streaming, and cloud backup, our devices support multi-band global roaming. We offer flexible OEM/ODM services (custom branding from 100 units) and deliver an ISO9001 certified monthly capacity of 50,000 units to fleet operators and B2B buyers worldwide.

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Product Lineup

GreatWill 4G Dual Dash Cam Core Products

Addressing the core fleet dual-recording needs (front of vehicle + interior / rear), GreatWill has selected the following high-performance models that support dual-channel synchronous recording for buyers

Model	Resolution	Dual-Lens Features	Applications	Positioning
GD101N	2K 1440P + 1080P	Front 2K + interior 1080P, supports WiFi hotspot offline blind transfer and supercapacitor	Ride-hailing, taxi, passenger cars	Entry-level WiFi hotspot dual-recording model
GD301	2K 1440P + 1080P	4G dual-band transmission, split-type dual recording, AI algorithm enhancement, supercapacitor	Buses, school buses, special engineering vehicles	High-end AI algorithm dual-recording model

GreatWill 4G Dual Recording Selection Guide

If you value local high image quality and cost and do not need frequent remote live retrieval, choose GD101N (it relies on a WiFi hotspot to perform blind data transfer and positioning information recognition when offline or signal is poor).
For large commercial fleets, passenger/tourist buses and hazardous-goods vehicles, or those needing comprehensive AI risk defense, choose GD301 (supports dual external 4G antennas, real-time event second-level cloud backup, and supercapacitors, adapting to various harsh operating conditions).

Parameter Category	GD101N	GD301	Custom OEM
Front Resolution	2560×1440P (2K)	2560×1440P (2K)	Up to 2K
Rear/Interior Resolution	1920×1080P (FHD)	1920×1080P (FHD)	Up to 2K
Video Encoding	H.265	H.265	H.265/H.264
4G Network	4G supported	FDD-LTE/TDD-LTE (Global bands)	4G+2G
Live Streaming Latency	–	< 2 seconds	< 1.5 seconds
WiFi Function	2.4G	2.4G	2.4G
Local Storage	Micro SD (Max 512GB)	Micro SD (Max 512GB)	`Micro SD (Max 512GB)`
Cloud Storage	Customizable (event/scheduled upload)	Customizable (event/scheduled upload)	Customizable (real-time + event + scheduled)
GPS Positioning	GPS+BDS	GPS+BDS	GPS+BDS+LBS
Operating Temperature	-20℃ ~ 70℃	-20℃ ~ 70℃	-30℃ ~ 80℃
Protection Rating	IP65 (dust/waterproof)	IP65 (dust/waterproof)	IP67 (dust/waterproof)
Applicable Scenarios	Ride-hailing, passenger cars	Trucks, buses, school buses	Special vehicles, military

Analysis

4G Dual Dash Cam vs Single & Multi-Channel: B2B Channel Selection & TCO Benchmarking

Commercial fleet operators must evaluate the number of camera channels based on structural blind spots, legal compliance, and telematics data budgets.

Comparison Item	4G Single Dash Cam (1-CH)	4G Dual Dash Cam (2-CH)	4G Multi-Channel (4-CH/MDVR)
Monitoring Coverage	Front road only (130°)	Front road + interior/rear (no blind spots)	Front + interior + left blind spot + right blind spot (360° panoramic)
Data Bandwidth Consumption	Low (approx. 2-3GB/month)	Moderate (approx. 4-5GB/month, event-triggered)	High (requires large data plan or custom private protocol)
Typical Applicable Vehicle Types	Passenger cars, light delivery vehicles	Ride-hailing, taxis, medium-duty trucks	Heavy trailers, school buses, hazardous-material special vehicles
B2B Procurement Cost-Performance	Very low cost, lacks in-cabin evidence	Golden balance point for fleet management (best cost-performance)	Highest safety factor, high hardware and mold-modification costs

If your fleet belongs to the taxi, ride-hailing, or urban distribution logistics industry, the 4G Dual Dash Cam is the most cost-effective standard configuration. GreatWill supports flexible OEM branding customization starting from 100 units. Welcome to contact our solution experts for technical white papers and test samples.

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Capabilities

Key Features & Vertical Applications of 4G Dual Dash Cams

A professional 4G dual dash cam system combines synchronized front-and-rear recording with real-time cellular data transmission to eliminate blind spots, protect fleet assets, and provide centralized cloud management across diverse commercial vehicle industries.

Synchronized Dual Recording

Front and rear video timelines are strictly synchronized, leaving no time gap during accident review and making liability determination clearer.

Real-Time 4G Transmission

Both lenses live-stream simultaneously with latency under 2 seconds, so the dispatch center can check vehicle status at any time.

Industrial-Grade Durability

IP65 protection + wide-temperature operation from -35°C to 80°C, adapting to harsh conditions such as heavy rain, dust, and high temperatures.

H.264/H.265 Dual Encoding

Both video streams are recorded simultaneously, saving 50% storage space and reducing SD card replacement frequency.

Rear Cross-Traffic Alert

Targets reversing blind spots, providing warnings for moving objects behind the vehicle to reduce scrape accidents.

Centralized Cloud Management

One platform manages thousands of dual-recording devices simultaneously, handling video, tracks, and alarms in one place.

Industry Application Scenarios

Yellow delivery van parked outside a warehouse loading area

Logistics Trucks & Semi-Trailers

Pain points: Large blind spots and easy scrapes when reversing.
Solution: Front camera records road conditions, rear camera records cargo area; reversing automatically triggers rear-camera live stream to prevent cargo damage disputes.

Two men exchange a car key fob beside an open car door

School Buses & Public Buses

Pain points: Passenger boarding/alighting safety and rear-end collisions.
Solution: Front camera monitors driver behavior, rear camera monitors rear area and passenger movement, meeting national standard requirements.

Worker in a safety vest checks a tablet in front of construction equipment at a work yard

Construction Machinery & Dump Trucks

Pain points: Complex operating environments and high risks when driving at night.
Solution: F1.8 large-aperture rear camera + infrared fill light ensures clear reversing images at night.

OEM/ODM Customization Services

One-Stop Solution from Hardware Reconfiguration to Software Enablement

Appearance & Brand Customization (Logo & Housing)

Pain Point Solution: “How do I make the device look like our own brand? How can it adapt to different vehicle installation environments?”
Silk-Screen/Laser Engraving: Supports brand logo silk-screening or laser engraving on the front and side of the device, with precise font and color matching.
Minimum Order Quantity (MOQ): Custom branding services start at 100 units, supporting small and medium trial orders.
Housing Material: Can customize flame-retardant ABS, PC alloy, or metal housing according to needs, improving product texture and durability.
Color Customization: Supports full color-range customization (e.g., fleet-exclusive colors, corporate standard colors), ensuring the device matches vehicle interiors or brand image.
Mold Modification: For specific installation spaces (e.g., streaming rearview mirror integration), supports partial mold modification or new mold development to ensure perfect fit.

Hardware Function Customization (Hardware Functionality)

Pain Point Solution: “The standard product has too many or too few features; how can it match our specific vehicle models?”
Extra-Long Cable Customization: For special vehicles such as long-nose trucks, semi-trailers, and buses, high-temperature-resistant shielded cables of 5m, 10m or even longer can be customized to solve rear-camera wiring problems.
Interface Expansion: Can add or remove specific interfaces (e.g., RS232, CAN bus interface) to realize data docking with the vehicle ECU (e.g., vehicle speed, fuel consumption).
Lens Specifications: Can customize different wide-angle lenses based on blind spot size (e.g., 170° ultra-wide-angle rear camera), or upgrade to higher-sensitivity image sensors to adapt to extremely low-light environments.
Night Vision Enhancement: For fleets operating frequently at night (e.g., dump trucks), can increase infrared fill-light power or customize starlight-level low-light modules.
Supercapacitor Power Management: For new-energy vehicles with different voltage platforms, wide-voltage input modules can be customized (e.g., 9-36V or 48V system adaptation).

Software & Platform Customization (Software & Platform)

Pain Point Solution: “We need our own management platform; we don’t want to use a generic app.”
Feature Trimming/Adding: Based on customer needs, trim unnecessary functions (to reduce cost) or add specific algorithms (e.g., loading/unloading recognition for specific cargo).
Default Parameter Locking: Factory presets for resolution, loop recording duration, G-sensor sensitivity, etc., ensure all devices meet management standards upon delivery.
Full-Platform Brand Replacement: Provides white-label services for web management platforms and mobile apps. Customers can fully integrate their brand logo, name, and color scheme into the software interface.
API/SDK Open Integration: Provides complete RESTful API interfaces and SDK development kits, supporting seamless integration with customers’ existing TMS (Transportation Management System), ERP, or proprietary monitoring platforms for data interoperability.
Private Deployment: For government or large enterprise customers with extremely high data security requirements, supports on-premise deployment to ensure data is fully autonomous and controllable.

Certification & Compliance Support (Certification & Compliance)

Global Market Access Support:

Certification Agency Service: GreatWill has a professional certification laboratory and team that can assist customers in completing mandatory certifications for mainstream global markets such as CE/ISO/ECE, etc. (Tell us your requirements and we will certify accordingly.)
Testing & Rectification: Provides pre-testing services to identify and resolve potential radio-frequency interference and electromagnetic compatibility (EMC) issues in advance, ensuring a first-pass rate and reducing customer time costs.
Data Privacy: The software supports GDPR (EU General Data Protection Regulation) compliance settings such as data anonymization and user authorization mechanisms.

Customization Process & Delivery Assurance (Process & Assurance)

Pain Point Solution: “Will customization be slow? How is quality guaranteed?”
Requirement Confirmation: Sign an NDA (Non-Disclosure Agreement) and clarify the technical specification (Spec).
Solution Design: Provide 3D structural drawings and circuit schematics for confirmation.
Sample Production: Prototyping cycle is 7-15 days (depending on complexity), providing 2-3 engineering samples for testing.
Small-Batch Pilot Run: Verify production processes and yield rates.
Mass Delivery: Full inspection before shipment.
Production Capacity Assurance: Automated production line with a monthly capacity of 50,000 units, supporting JIT (Just-In-Time) delivery to handle sudden order demands.
Warranty Policy: Provides after-sales quality warranty (for product issues, use under the guidance of our professional technicians), and provides dedicated technical support channels for custom projects.

GreatWill Product Customization Advantages

Flexible: Minimum order starts at 100 units, supporting full-tier customization from logo to functions.
Professional: 30+ software and hardware engineers, providing full-chain support from design to certification.
Secure: Sign an NDA to strictly protect customer brand and data security.
GreatWill provides you with full-chain OEM/ODM customization services from hardware to software. Choose GreatWill, and you gain not just a device, but an exclusive fleet management terminal deeply aligned with your business scenarios and imprinted with your brand genes.

Support

Frequently Asked Questions

A 4G dual dash cam features two cameras – a front-facing lens for road recording and a rear/interior-facing lens for monitoring the driver or rear of the vehicle – combined with 4G LTE cellular connectivity for real-time video streaming. Unlike a single-lens 4G dash cam, a dual dash cam simultaneously captures both road conditions and in-cabin activity, making it ideal for fleet management, ride-hailing, and commercial vehicles where driver behavior monitoring is essential. Explore our full 4G dash cam lineup for single-channel options.

Consider your fleet type, monitoring needs, and budget. For ride-hailing and taxi fleets requiring in-cabin monitoring, the GreatWill GD301 Dual offers the best balance of features and cost. For large vehicles like buses needing multi-channel coverage and AI analytics, the GD14 flagship model is recommended. For specialized needs, contact our sales team for a tailored recommendation.

Yes. GreatWill 4G dual dash cams support dual-channel simultaneous 4G streaming. Both front and interior/rear video feeds are transmitted in real-time to the cloud management platform with latency under 2 seconds per channel. You can view both feeds side-by-side in split-screen mode.

Dual-channel streaming uses approximately 3-7GB per month per device under normal usage (event-triggered upload + 1hr daily live view per channel). GreatWill dual dash cams support local SIM card integration, so you use your preferred carrier plan. Our devices are compatible with major global 4G bands.

Yes. The interior/rear camera of GreatWill dual dash cams is equipped with IR infrared LEDs for night vision compensation. This ensures clear in-cabin footage even in complete darkness, making it suitable for nighttime taxi and ride-hailing operations.

Installation takes 45-90 minutes per vehicle with standard wiring (slightly longer than single-cam due to second lens cable routing). GreatWill provides detailed installation manuals and video tutorials. For large fleet deployments (50+ units), we can arrange online installation guidance or local car dealership professional technicians.

Yes, GreatWill 4G dual dash cams support multi-band global frequencies (FDD-LTE: B1/B3/B5/B7/B8/B20/B28; TDD-LTE: B34/B38/B39/B40/B41). They work with most 4G networks worldwide. Simply insert a local SIM card and configure the APN settings for both channels.

Both channels are stored locally on SD card (up to 512GB, dual-channel loop recording) and optionally backed up to GreatWill cloud platform. We use AES-256 encryption for data transmission and storage, with role-based access control. Event-triggered recordings from both cameras are automatically uploaded to the cloud simultaneously.

Yes, GreatWill provides comprehensive OEM/ODM services for dual dash cams including custom logo printing (MOQ 100), packaging design, firmware customization, independent lens specification selection, API integration, and hardware modifications. MOQ for custom projects starts at 500 units, with lead times of 30-45 days.

GreatWill offers a 1-year manufacturer warranty and lifetime technical support for all 4G dual dash cam models. For quality issues within the warranty period, we provide free replacement or repair. Enterprise clients get dedicated account managers and priority support.

Get a Custom Quote for GreatWill 4G Dual Dash Cams

Request GreatWill 4G Dual Dash Cam Samples

Tell us about your fleet size, vehicle type, dual-channel requirements (front + interior or front + rear), and specific monitoring needs. Our GreatWill solution expert will respond within 24 hours with a customized proposal and pricing for 4G dual dash cam solutions.