WOLFBOX G840S 12" 4K Mirror Dash Cam Backup Camera, 5.8GHz WiFi Smart Rearview Mirror for Cars & Trucks, Front and Rear View Dual…
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Best for
Best mirror-replacement combo
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$104.97
Updated Jun 27, 2026 · 1 min read
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
The WOLFBOX G840S takes a different approach as a 12-inch mirror dash cam that pairs a front camera with a rear backup view, and it carries one of the largest review bases in the pool, more than 14,000 verified-purchase ratings at a 4.3 average. Reviewers favor it for buyers who want an all-in-one rearview-mirror replacement with parking assistance, GPS, and a wide rear field of view rather than a standalone backup camera. The consensus among customers is positive on the large display and dual front-and-rear recording, though the 4.3 average is slightly below several smaller-volume picks here, and mirror-style units periodically draw complaints about glare and reflection at night across this product class.
What reviewers liked
- Very large verified-purchase review base (14,000+)
- All-in-one mirror dash cam combines front and rear recording
- Includes 32GB card, GPS and parking assistance
Where it falls short
- Slightly lower star average (4.3) than several smaller-volume picks
- Mirror-style units in this class can suffer glare and night reflection
- No independent testing in the available signals; serves a narrower buyer than a dedicated backup camera
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The WOLFBOX G840S takes a different approach as a 12-inch mirror dash cam that pairs a front camera with a rear backup view, and it carries one of the largest review bases in the pool, more than 14,000 verified-purchase ratings at a 4.3 average. Reviewers favor it for buyers who want an all-in-one rearview-mirror replacement with parking assistance, GPS, and a wide rear field of view rather than a standalone backup camera.
The consensus among customers is positive on the large display and dual front-and-rear recording, though the 4.3 average is slightly below several smaller-volume picks here, and mirror-style units periodically draw complaints about glare and reflection at night across this product class. The included 32GB card and GPS add value for buyers wanting dash-cam functionality alongside backup viewing.
No independent lab testing or specialist-community threads appeared in the supplied data, so this verdict reflects verified-purchase sentiment only. The high volume lends credibility, but the dual-purpose mirror design serves a narrower buyer than a dedicated backup camera.
- 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 provides 1.5 times the viewing area of a standard mirror, significantly reducing blind spots for enhanced safety.
- 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 on iOS or Android devices to real-time viewing, playback recordings, and quick sharing of videos.
- 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 driving and reversing. The smart split-screen function allows simultaneous monitoring of both lenses, while the 2.5D curved screen seamlessly integrates with your vehicle’s interior.
- 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 technology for balanced lighting, and a professional-grade sensor paired with a 6-glass lens for superior image quality, nighttime driving or challenging lighting conditions are handled with ease.
- 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 conserve power and storage while ensuring continuous surveillance of your vehicle. (A hardwire kit is required for parking monitoring.)
- DEPENDABLE AFTER-SALES SUPPORT - WOLFBOX provides attentive customer service to help resolve any questions or problems you may encounter. The rearview mirror dash cam comes with a 12-month guarantee, ensuring consistent performance all year round. Please use only original brand accessories. Damage to the product, vehicle, or related losses caused by the use of non-original accessories, improper installation may not be covered by the guarantee or replacement service.
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