WOLFBOX G840S 12-Inch 4K Mirror Dash Cam – Backup Camera, GPS, WiFi & 32GB Card Included

One of the most distinctive features of the WOLFBOX G840S is its large 12-inch digital mirror display.

Unlike a traditional dash camera that relies on a small integrated screen, the G840S uses a wide display positioned over the vehicle’s existing rearview mirror.

The manufacturer advertises approximately 1.5 times the viewing area of a standard mirror, although actual differences depend on the vehicle’s original mirror dimensions.

The larger display can make it easier to observe rear camera footage and navigate supported camera functions.

Its 2.5D curved screen design also helps the unit blend into the vehicle’s interior.

For drivers who prefer a cleaner dashboard layout, the mirror-mounted design eliminates the need for an additional freestanding display.

Digital Backup Camera for Improved Rearward Visibility

The G840S rear camera serves as both a recording camera and a digital rearview camera.

This can be especially useful for vehicles with limited rear visibility, large headrests, cargo obstructions, or reduced sightlines through the rear window.

When properly positioned, the rear camera provides a live view of the area behind the vehicle.

For SUVs, pickup trucks, and other vehicles with challenging rear visibility, a digital rearview mirror can offer a useful additional perspective.

However, the camera does not eliminate all blind spots and should not replace checking mirrors, looking around the vehicle, or following safe reversing practices.

The exact reverse-trigger behavior and available parking guidelines should be verified for the specific G840S package and installation configuration.

Smart Split-Screen Viewing for Front and Rear Cameras

The WOLFBOX G840S features split-screen functionality, allowing drivers to view both front and rear camera feeds simultaneously.

This provides additional situational awareness without switching manually between individual camera views.

Split-screen operation can be useful when navigating crowded parking lots, monitoring surrounding traffic, or reviewing camera positioning.

The large 12-inch display gives the G840S an advantage over smaller dash cameras when presenting multiple camera views.

170-Degree Front and 140-Degree Rear Wide-Angle Lenses

The WOLFBOX G840S uses wide-angle lenses designed to capture a broad field of view around the vehicle.

The front camera features a 170-degree viewing angle, while the rear camera provides 140-degree coverage.

These viewing angles help document activity across multiple lanes and provide additional visibility around the rear of the vehicle.

This can be particularly useful when reviewing lane changes, merging traffic, and parking-related incidents.

As with other wide-angle cameras, some edge distortion may occur, and distant objects can appear smaller than they would through a narrower lens.

HDR and WDR Night Vision for Challenging Lighting Conditions

The WOLFBOX G840S features Wide Dynamic Range (WDR) and High Dynamic Range (HDR) imaging technologies designed to improve video visibility in challenging lighting conditions.

These technologies help balance bright and dark areas of the recorded image.

This is particularly useful when driving at night, entering tunnels, or encountering strong sunlight and bright headlights.

The G840S also features a six-element glass lens and an upgraded image sensor intended to support detailed recording.

Potential benefits include improved visibility during:

• Nighttime highway driving.

• Early-morning commutes.

• Parking garage entry and exit.

• Roads with changing shadows.

• Bright sunlight.

• Encounters with approaching headlights.

Actual nighttime recording quality depends on available lighting, camera positioning, and environmental conditions.

Low-Reflectivity LCD for Better Daytime Viewing

Digital mirror displays can be difficult to see when strong sunlight reflects off the screen.

The WOLFBOX G840S features an upgraded low-reflectivity LCD designed to reduce distracting daytime reflections.

This helps improve screen visibility when driving in bright conditions.

Combined with the wide 12-inch display, the reduced-reflection design makes the G840S more practical for everyday use.

The result is a digital mirror system intended to remain useful in both bright daylight and lower-light driving environments.

Built-In 5.8GHz WiFi with WOLFBOX Smartphone App

The WOLFBOX G840S includes 5.8GHz WiFi connectivity for accessing camera footage through a compatible smartphone.

Using the WOLFBOX mobile application on iOS or Android, drivers can connect to the camera to review recordings and manage supported video functions.

App features include:

• Live video preview.

• Recorded video playback.

• Wireless video downloads.

• Sharing saved clips.

• Convenient access to recorded footage.

Wireless access makes it easier to retrieve important recordings without removing the memory card.

For automotive enthusiasts who enjoy documenting road trips or memorable drives, smartphone connectivity can also simplify saving and sharing footage.

Important: The camera’s 5.8GHz WiFi provides a local connection to a compatible smartphone. It does not provide cellular internet access or independent remote monitoring.

GPS Tracking with Included External Antenna

The WOLFBOX G840S includes an external GPS antenna designed to provide location and driving information.

GPS data can be displayed through the dash camera and used to add context to recorded journeys.

This can be helpful when reviewing driving routes, incident locations, and travel information.

Unlike dash cameras that require GPS accessories to be purchased separately, the supplied G840S package includes the external GPS antenna.

GPS performance depends on satellite reception, antenna placement, and environmental conditions.

Free 32GB Memory Card Included

The WOLFBOX G840S includes a 32GB memory card, allowing drivers to begin recording without purchasing a separate card immediately.

The camera supports automatic loop recording, which overwrites eligible older files when the card reaches its normal storage capacity.

Because 4K front recording generates relatively large video files, drivers who frequently record long journeys may benefit from a compatible higher-capacity memory card.

Before upgrading, verify the maximum supported storage capacity for the exact G840S hardware revision.

Use compatible high-endurance storage media and follow WOLFBOX’s formatting recommendations.

Automatic Loop Recording for Everyday Driving

Loop recording allows the G840S to continue capturing footage without requiring drivers to manually delete older video files.

When the memory card fills, the camera overwrites eligible unprotected recordings to make room for new footage.

This makes the system convenient for daily commuting, road trips, and regular vehicle use.

Important recordings should be transferred to a separate storage device promptly after an incident.

Optional 24-Hour Parking Monitoring

The WOLFBOX G840S supports optional parking monitoring through time-lapse recording.

When connected to a compatible hardwire kit, the camera can record at a reduced frame rate while the vehicle is parked.

This helps conserve storage capacity and reduce recording demands during extended monitoring periods.

Parking surveillance can be useful when leaving a vehicle in:

• Public parking garages.

• Shopping center parking lots.

• Apartment complexes.

• Workplace parking areas.

• Residential streets.

• Automotive event parking locations.

Installation requirement: A compatible WOLFBOX hardwire kit is required for parking monitoring and is sold separately.

Actual monitoring duration depends on power availability, camera settings, and storage capacity.

Clean Mirror Installation and Proper Wiring

Because the WOLFBOX G840S integrates a digital display with front and rear recording, proper installation is important for reliable operation.

The mirror unit must be securely mounted, and the rear camera cable should be routed carefully through the vehicle.

Avoid running wires through airbag deployment areas, and ensure that the rear camera is positioned where it has a clear view.

For drivers installing aftermarket electronics, understanding power connections and cable routing is essential.

Our automotive wiring and electrical troubleshooting guides provide useful technical background for vehicle owners working with aftermarket accessories.

Always use compatible WOLFBOX accessories and follow the manufacturer’s installation instructions.

Ideal for SUVs, Trucks, Daily Drivers and Modified Cars

The WOLFBOX G840S offers a practical upgrade for drivers who want the benefits of a digital rearview mirror alongside high-resolution dash camera recording.

For SUVs and pickup trucks, the rear camera can provide an additional perspective when cargo or vehicle design limits rearward visibility.

For daily commuters, the 4K front camera and 1080P rear recording help document unexpected incidents.

For automotive enthusiasts, the mirror-mounted design can be appealing because it combines multiple functions without adding a separate dashboard display.

Whether you’re maintaining a daily driver or improving a project vehicle, explore additional automotive DIY installation and vehicle technology guides from My Pro Street Online.

12-Month WOLFBOX Warranty and Customer Support

According to the supplied manufacturer information, the WOLFBOX G840S includes a 12-month warranty and customer support.

WOLFBOX recommends using original brand accessories and following the prescribed installation procedures.

Damage associated with incompatible accessories or improper installation may not be covered under the manufacturer’s warranty.

Review the current warranty terms before installation, particularly when adding hardwire kits or other electrical accessories.

Why Choose the WOLFBOX G840S 4K Mirror Dash Cam?

The WOLFBOX G840S combines a large digital rearview mirror display with high-resolution front and rear recording.

Its upgraded 4K front camera, 1080P rear camera, 12-inch screen, GPS antenna, WiFi connectivity, and HDR/WDR imaging make it a versatile vehicle electronics upgrade.

The included 32GB memory card and external GPS antenna add convenience, while optional parking surveillance expands its usefulness when the vehicle is parked.

For drivers who want a modern digital mirror system without installing a separate dashboard monitor, the G840S provides a practical combination of recording and rearward viewing features.

Because sometimes the best way to improve your rearview mirror is to stop relying on a tiny piece of reflective glass and start using a camera that can actually see past the back seat.

WOLFBOX G840S Technical Specifications

Frequently Asked Questions

Does the WOLFBOX G840S record in 4K?

Yes. The front camera records in 4K UHD, while the rear camera records in 1080P Full HD.

Does the WOLFBOX G840S replace the rearview mirror?

The G840S is designed to mount over a compatible existing rearview mirror, providing a large digital display for camera footage.

Can I view the front and rear cameras at the same time?

Yes. The G840S supports split-screen viewing.

Does the WOLFBOX G840S include GPS?

Yes. An external GPS antenna is included with the supplied package.

Does the WOLFBOX G840S include a memory card?

Yes. The supplied package includes a 32GB memory card.

Can I connect the WOLFBOX G840S to my phone?

Yes. The camera supports 5.8GHz WiFi connectivity through the WOLFBOX smartphone app.

Does the WOLFBOX G840S work at night?

Yes. Its HDR and WDR imaging technologies are designed to improve recording visibility in challenging lighting conditions.

Can the WOLFBOX G840S record while parked?

Yes. Optional time-lapse parking monitoring is supported with a compatible hardwire kit purchased separately.

Does the WOLFBOX G840S include a warranty?

The manufacturer advertises a 12-month warranty, subject to its current terms and conditions.