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…
Price as of 2026-08-11. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$26–$48
- Mid-range:$48–$117
- Premium:$117+← You are here
Is This Right For You?
- •Buyers who prioritize quality over price in Backup Cameras
- •Risk-averse buyers — 14,527+ reviews give a highly reliable picture
- •You're on a tight budget — $42 above the category average of $98
- •pemacom 1080P HD Wireless Backup Camera: 1-Min Magnetic offers a better rating (4.5/5) at a similar or lower price ($110)
- •LeeKooLuu HD 1080P 7 Inch Wireless Backup Camera — 43% cheaper at $80 (Score B+)
- •pemacom 1080P HD Wireless Backup Camera: 1-Min Magnetic — higher rated at 4.5/5 ($110)
📊 Based on data analysis of 8 products in this category.
Mubboo Score: B
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Backup Cameras
Computed from live Amazon rating, review count, and price across 8 Backup Cameras available to US consumers · last refreshed 2026-08-11.
How It Compares
This Product WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera | Most Popular Furrion Vision S Wireless RV Backup Camera System | Best Rated pemacom 1080P HD Wireless Backup Camera: 1-Min Magnetic | Best Value LeeKooLuu HD 1080P 7 Inch Wireless Backup Camera | |
|---|---|---|---|---|
| Price | $139.99 | $236 | $109.99 | $79.98 |
| Rating | 4.3/5 | 4.4/5 | 4.5/5 | 4.2/5 |
| Reviews | 14,527 | 6,419 | 2,366 | 4,505 |
| Mubboo Score | B | B | B | B+ |
Quick Specs
- Color
- Black
- Frame Rate
- 30 FPS
- Unit Count
- 1.0 Count
- Item Weight
- 830 Grams
- Screen Size
- 12
- Display Type
- LCD
- Manufacturer
- WOLFBOX
- Model Number
- G840
What buyers say about Backup Cameras
Themes from buyer reviews across this category — not review data for this specific model.
Test the camera immediately upon receipt, as defect rates can be high; also, verify your vehicle's compatibility and be prepared to add extra sealing or wiring extensions for a reliable install.
- Excellent image clarity
- Simple installation process
- Great value for the price
- Effective night vision performance
- Reliable and durable construction
- High defect rate or early failure
- Lower-than-expected image resolution
- Flimsy build quality and cheap materials
Expert Picks in Backup Cameras
- Viofo A229 Pro — Overall best dash cam
- Miofive S1 — Budget single-camera
- Miofive S1 Ultra — Budget dual-camera
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
Key Features
- ✦UPGRADED 4K UHD CLARITY - Experience stunning detail with the front camera's upgrade to 4K UHD (2160p) resolution, paired with a 1080p rear camera. The extra-large 12" display prov…
- ✦5.8GHz WiFi&GPS TRACKING - The included external GPS antenna enables real-time GPS data display directly on the dash cam. Connect to your phone via Wi-Fi and use the "WOLFBOX" app …
- ✦LARGER SCREEN & WIDER VIEW - The WOLFBOX G840S mirror camera features a 170° front lens and a 140° rear lens, offering a broader field of view to minimize blind spots during drivin…
- ✦SUPERIOR NIGHT VISION & IMAGE QUALITY - The G840S mirror dash camera is equipped with an upgraded low-reflectivity LCD to reduce daytime reflections. With incorporated WDR & HDR te…
- ✦24-HOUR PARKING MONITOR - Beyond on-the-road safety with loop recording, the WOLFBOX camera also features a 24-hour parking monitor. Time-lapse mode records at a low frame rate to …
Source: product listing on Amazon.
If not the G840S 12" 4K Mirror Dash Cam Backup Camera, consider these
Featured in Our Reviews
Bottom Line
WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera earns Mubboo Score B. Priced at $140 — a premium option, above the category average of $98. Rated 4.3/5 from 14,527+ reviews. Strong buy if: buyers who prioritize quality over price in backup cameras, risk-averse buyers. Skip if: you're on a tight budget — Furrion Vision S Wireless RV Backup Camera System (Score B, $236) may fit better.
Frequently Asked Questions
Is the WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera worth buying in 2026?
It earns a Mubboo Score of B, with a 4.3/5 rating from 14,527 reviews — better than 50% of Backup Cameras we track.
How much does the WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera cost?
It is currently $139.99 — premium-tier pricing for Backup Cameras.
How does the G840S 12" 4K Mirror Dash Cam Backup Camera compare to other Backup Cameras?
The category's most-reviewed alternative is the Furrion Vision S Wireless RV Backup Camera System (4.4/5, 6,419 reviews, $236). The G840S 12" 4K Mirror Dash Cam Backup Camera carries a Mubboo Score of B vs B.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-08-11) and may change.