CarCareTruth Score
Decent.
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Prices may varyThis product ranks #16 of 29 in Dash Cam.Three above it ↓
Last reviewed June 22, 2026
TL;DR Daytime plate legibility unconfirmed via independent community footage comparison · community notes plates are generally readable, but no footage shootout found for this 4K variant at time of review. Night vision: independent footage comparison not available at time of review; f/2.8 aperture is below category average for low-light collection. Parking mode is vibration trigger-only (no buffer), 20-second clip; smart hardwire kit sold separately. Supercapacitor design · no lithium battery. FCC-only, no UL/ETL electrical safety certification.
The Rexing V1 4K is a single-channel front dash cam with a 170° wide-angle lens, built-in GPS, and 2.4GHz Wi-Fi. It records at 2160p, though the 4K label reflects upscaled output rather than capture from a native 4K sensor · independent reviewers note the distinction. The f/2.8 aperture is below the f/1.8·f/2.0 found on category-leading cameras, limiting low-light collection.
Parking mode is vibration trigger-only: when motion is detected, the camera saves a 20-second clip. There is no buffered pre-event recording. A smart hardwire kit is required to enable parking mode and is sold separately.
The supercapacitor design is a genuine differentiator at this price point · no lithium battery means no thermal-degradation risk in a parked hot car. Community reports include users running this camera 2.5 to 4 years in hot climates without hardware failure. App and Wi-Fi connectivity are a documented weak spot: the Wi-Fi defaults off on every power cycle, and the Rexing Connect app has community-reported usability complaints that Rexing has acknowledged with a published troubleshooting guide.
Best match for budget-conscious drivers who prioritize heat durability over night-vision performance · the supercapacitor design delivers reliable hot-car operation that lithium-ion alternatives at this price cannot match. Skip it if nighttime footage quality or a functional parking-mode buffer are priorities: the f/2.8 aperture limits low-light performance, and the trigger-only parking mode misses the moments before an impact. Drivers who want buffered parking and stronger night vision should look at the Vantrue N4 Pro or Vantrue E3.
Supercapacitor design · no lithium battery, no lithium thermal-runaway risk, and no lithium battery disposal requirement. At end of life, the unit qualifies for Best Buy electronics recycling drop-off or any municipal e-waste program. No Rexing manufacturer take-back program has been documented. No California Prop 65 warning applies to this product. FCC-only certification · no independent UL or ETL electrical safety listing confirmed.
No. It uses a built-in supercapacitor instead of a lithium-ion battery. Supercapacitors handle extreme temperatures from -20 to 176°F without the battery-degradation risk that affects lithium-ion dash cams in hot climates.
No. The parking mode is trigger-only · when vibration is detected, the camera records a 20-second clip. There is no buffered pre-event recording capturing footage before the trigger. A smart hardwire kit (sold separately) is required to enable parking mode.
The camera records at 2160p (the 4K label), but independent reviewers including TechGearLab and DashCamTalk note the resolution is upscaled rather than captured by a native 4K sensor. Daytime footage is adequate for plate legibility per community reports, but it is not in the same class as cameras with confirmed Sony STARVIS 2 or equivalent native 4K sensors.
Yes, via Wi-Fi. However, multiple community sources note the Wi-Fi defaults off on every power cycle and requires manual re-enabling. The Rexing Connect app has documented usability complaints; Rexing USA has published a troubleshooting guide acknowledging connectivity issues.
Marketing copy from Rexing, via Amazon. Not editorial.
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