Should I get an iPhone 7 or 6s plus?

I'm getting a new phone on Black Friday tommorow, will be a 32GB both the 7 and the 6s plus cost about the same, I kinda want the 6s plus more because of the size but what features does the 7 have over the 6s or 6s plus seeing as the 7 is a year newer? Is it much faster or anything like that? Any features worth noting? I currently have an iPhone 16, 16gb so I kind of know what the 6 is like

I'm not a phone expert but from what I've seen the only difference between phones is the amount of onboard memory which most of them can be expanded with a chip anyway and the camera quality other than that you're not getting much more than a $70 smartphone. Just bragging rights to the latest ripoff.
.

I personally would get the 7.

Newer, faster, stereo speakers, IP67 water/dust resistance, iOS updates longer later on, easier one handed use, etc