This dash cam takes very good 4K UHD video, but it’s not cheap and the capacitor is short-lived

The VanTrue X4 is one of the first 4K UHD dash cams available, but you should definitely expect more to follow–it’s the thing with vendors right now. This bleeding-edge model shows some of the challenges of said high-res trend: It’s a bit pricey and while there’s a noticeable increase in detail in its 2160p captures, it might not be worth the four-fold increase in storage requirements. Beyond that, Vantrue still does a whole lot right.
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https://www.pcworld.com/article/3490460/vantrue-x4-dash-cam-sharp-4k-uhd-captures-come-at-a-price.html