"I could have a bodycam record everything that happens to me for a whole month, 24/7, in high-definition and store it on something smaller than my fingernail."
2TB / 149MB = 13,422 minutes == 223.7 hours == 9.32 days
I'm being facetious of course but I was surprised by just how much storage space I needed to record security cameras. I have a mix of 4k & HD, and 10tb doesn't even get me a month of 24/7.
So 2TB lasts 37 days, meaning blowski is right.
Of course powering that bodycam will be a different matter.
Take the Axon Body 2 as an example, the gold standard for police bodycams. According to its specs [0] it'll record 12 hours of 1080p video on its 64GB internal storage.
So using H.264 it produces 64gb/12hr == 5.333 (repeating of course) GB/hr, making 2TB / 5.333GB == 375 hours, or about 15.625 days
[0] https://s3-us-west-2.amazonaws.com/cms-nppgov.resources/app/...
Not sure what security cameras you’re using, but mine all use H.264 1080p compressed streams. I get about 15 days worth on a 2TB spinning rust across 6 cameras.
Even going by your own numbers, you almost certainly are using compression too. 9.32 days on 2TB does not get you a month on 10TB if you “have a mix of 4K & HD”.