---
product_id: 249698749
title: "G840S 12\" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS"
brand: "wolfbox"
price: "€ 249.28"
currency: EUR
in_stock: true
reviews_count: 13
category: "Wolfbox"
url: https://www.desertcart.be/products/249698749-g840s-12-4k-mirror-dash-cam-backup-camera-5-8ghz
store_origin: BE
region: Belgium
---

# Enhanced night vision tech 5.8GHz WiFi + GPS tracking 12" ultra-wide display G840S 12" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS

**Brand:** wolfbox
**Price:** € 249.28
**Availability:** ✅ In Stock

## Summary

> 🚗 See More, Drive Safer, Stay Connected — The Ultimate Smart Mirror Dash Cam

## Quick Answers

- **What is this?** G840S 12" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS by wolfbox
- **How much does it cost?** € 249.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/249698749-g840s-12-4k-mirror-dash-cam-backup-camera-5-8ghz)

## Best For

- wolfbox enthusiasts

## Why This Product

- Trusted wolfbox brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Dual-Camera Monitoring:** Simultaneously view front (170°) and rear (140°) angles on a massive 12" smart mirror display to eliminate blind spots.
- • **All-Weather Night Vision Mastery:** Advanced WDR, HDR, and 6-glass lens tech ensure sharp, glare-free images even in low light or harsh conditions.
- • **Crystal-Clear 4K UHD Front Camera:** Capture every detail with stunning 2160p resolution for unmatched clarity on the road.
- • **Real-Time GPS & WiFi Connectivity:** Track your route live and instantly share footage via the WOLFBOX app on your smartphone.
- • **24/7 Parking Surveillance with Power Efficiency:** Keep your vehicle protected around the clock with time-lapse parking mode and G-sensor triggered recording.

## Overview

The WOLFBOX G840S is a cutting-edge 12" 4K UHD mirror dash cam featuring dual front and rear cameras with wide-angle lenses, advanced night vision, and a large display that reduces blind spots. Equipped with 5.8GHz WiFi and GPS tracking, it offers real-time monitoring and easy video sharing via a dedicated app. Additional perks include 24-hour parking surveillance, loop recording, and a USB-C power port for stable performance, making it an essential smart accessory for cars and trucks.

## Description

Product description WOLFBOX,Witness every moment. 4k 12" Mirror Dash Cam 4k 10" Mirror Dash Cam 4k Mirror Dash Cam 12" Mirror Dash Cam 4K+2.5K Mirror Dash Cam 3 Channel Dash Cam

Review: Clear and nice - It’s big size I like it and very clear
Review: Quality, easy to install and very useful for tinted cars when driving during the night - Quality and easy to install. Not only for recording, useful for tinted cars specially when driving at night. Highly recommended.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | WOLFBOX |
| Connectivity technology | Wi-Fi |
| Model name | WOLFBOX G840S |
| Special features | Super Night Vision, GPS ,Time-lapse, Loop Recording, G-Sensor, 24hours Parking Monitor, WDR Technology, Flicker, Screen Saver, Time Zone Volumn Setting, Over Speed Mind, Speed Unit, Reversing Line, Rear Cam Mirror Image, Playback Mode, Multi Language, Rear Camera Flip(180°）, Brightness ,Wide Angle, 12-Month Reliable Warranty(Service@wolfbox.com) Special features Super Night Vision, GPS ,Time-lapse, Loop Recording, G-Sensor, 24hours Parking Monitor, WDR Technology, Flicker, Screen Saver, Time Zone Volumn Setting, Over Speed Mind, Speed Unit, Reversing Line, Rear Cam Mirror Image, Playback Mode, Multi Language, Rear Camera Flip(180°）, Brightness ,Wide Angle, 12-Month Reliable Warranty(Service@wolfbox.com) See more |
| Vehicle service type | Bus, Car, Minivan, Truck |
| Video capture resolution | 2160p |

## Product Details

- **Brand:** WOLFBOX
- **Connectivity technology:** Wi-Fi
- **Model name:** WOLFBOX G840S
- **Vehicle service type:** Bus, Car, Minivan, Truck

## Images

![G840S 12" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS - Image 1](https://m.media-amazon.com/images/I/71wmxQK011L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does the mirror dashcam only record front camera video?**
A: G840S saves front and rear videos. Click the [playback icon] to enter the playback interface. Then Click the [car-shaped icon] to switch the video interface of the front and rear cameras.

**Q: Why the rear camera glares at night?**
A: The fixed focal length of the rear camera is 2.5 meters, and the rear camera works best at this distance. The WDR camera(Asin: B09KRM9QQ5) does a better job of addressing the glare problem.Rear Camera not detected?

**Q: Rear Camera not detected?**
A: First, please check the AV connector and 4-pin connector (4-pin connector may be loose, you can tighten it and reconnect it) and reconnect the AV connector to check whether the rearview camera can be detected. If still doesn't work, please tell us.

**Q: How to filp/mirror the rear camera image?**
A: If you want to install the rear camera on a pickup, SUV, or even on the top roof more conveniently, please adjust the "Upside Down of Rear Camera" and "Mirror Flip of Rear Image" menus to adjust the rear image vertically or horizontally.

**Q: Why is GPS not working?**
A: The vehicle must be within a wide range to receive the signal. We will send a new one if it is still not received in a wide area.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Clear and nice
*by W***M on 29 January 2026*

It’s big size I like it and very clear

### ⭐⭐⭐⭐⭐ Quality, easy to install and very useful for tinted cars when driving during the night
*by J***O on 13 December 2025*

Quality and easy to install. Not only for recording, useful for tinted cars specially when driving at night. Highly recommended.

### ⭐⭐⭐⭐ Excellent Product
*by A***N on 26 January 2021*

The product was received as described. A 32GB Mini SD card included. Everything working as advertised and satisfied. Only thing not working is LDWS.

## Frequently Bought Together

- WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual Cameras, Night Vision, Parking Assistance, Included 32GB Card & GPS
- WOLFBOX USB C Hardwire Kit for G850PRO/G840S/G930/G850/G900/G840H/i07/i17/X5 Mirror Dash Cam, not Suitable for G890/G900 PRO/G900 Tripro, Parking Monitor with Multiple Size connectors
- WOLFBOX OEM Bracket for USB C G900 Tripro/G900PRO/G850PRO/G840S/G840H/G850/G900 Mirror Dash cam

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**Shop now:** [https://www.desertcart.be/products/249698749-g840s-12-4k-mirror-dash-cam-backup-camera-5-8ghz](https://www.desertcart.be/products/249698749-g840s-12-4k-mirror-dash-cam-backup-camera-5-8ghz)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-06-15*