What’s the difference? | 1080P vs 2k vs 4k | Review | BlackboxMyCar

As you can see, some dash cam videos look really unclear and grainy… while some look as if they’re part of a Nature Documentary on the everyday life of cars. At the end of the day, a dash cam’s main usage is to make sure you can rely on it for reading those license plates when you need it most!
So for today’s video, let’s make things clearer for you, as we’ll be putting these resolutions head-to-head, providing a single source of truth so you aren’t hopping between sample footage videos, trying to compare.
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[ SKIP FORWARD ]
00:00 Introduction
01:45 1080P vs. 2K vs. 4K Video Resolution
02:17 What is 1080P Resolution
03:54 2K QHD Resolution
04:44 4K UHD Resolution
05:54 Things To Consider
07:12 Same Numbers Different Views
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[@MiroBG359]

the comparisons aren't run at the same time of day

[@billsmith1846]

Thank you. This was extremely helpful on choosing a dash cam

[@blackboxmycar]

Glad it was helpful!

[@CaptainCJ97]

Doing the lords work

[@blackboxmycar]

🙏Thank you Captain

[@gbedford]

I think that 2k QHD seems to be the sweet spot. As alluded to in other comments, but not really touched up in the video, is storage. The higher resolution, the faster your storage will fill up. And while storage seems cheap, there are a lot of cards out there that either can't keep up with the writing demands as far as speed goes, or the writing demands as far as longevity goes. There will be a point where the camera will either write over previous video, or stop recording to the card entirely ( usually you can select which behaviour you prefer). In regards to brands of cards, my goto for the longest time was Sandisk, however, many manufacturers are starting to recommend Samsung for dashcams. Pay close attention to the recommended card by the camera manufacturer for best results. I'd also throw in there remember to reformat your cards every once in a while as well. This seems to keep them healthier.

[@blackboxmycar]

All very valid information, and all very true! Higher resolutions will take up more space on the cards, and those are some very solid SD card recommendations.

[@TheHealthLife]

I agree, they should work on improving and refining 2k. The 4k tech is just not there yet. They also run hotter etc..

[@cnpc24]

May I ask if how long will a 64gb can record a 2k video, front and rear?

[@blackboxmycar]

That depends on other factors, like the specific bitrate. Using an average 2k bitrate of 25Mbps, that will get you almost 6 hours of footage. You can calculate recording time here: dashcamtalk.com/recording-time-calculator/

[@AHMET_AYDINLI]

👍👍

[@TheUnknown-mg8fv]

1080p helps in memory storage for long video time I use 2k instead of 4k cause to much memory not enough storage now if you use a low end phone watching on 4k your phone slows lol it's like give and take lol

[@blackboxmycar]

It totally is give and take, and higher quality recordings do take up more space. Do keep in mind that the format type of the file does also play a role, so newer models with H.265 for example can condense files even more. Thanks for your perspective!