That's too vague. There are dashcams and professional video camera's (if you're talking about video) and that's quite a difference.
And, assuming, there are 200 new cameras introduced each year, there's a new one every 2 days. So what whould be the latest one today, wouldn't be the latest one at the end of the week.
And why do need the latest one? What's wrong with one that is introduced in December 2018?
I need to know the specifications