I have both of them. And unless you’re planning to do POTA (which is why I got the 891) would actually chose the IC7100 for more power and better ECOMs. Also the IC7100 is a lot easier to use than the 891.
I had to Google for “HAM POTA”. :) Not familiar with those kinds of events. I’m using HAM for off-roading and over-landing, most of my buddies are running 2M and they monitor two channels. Which is why I bought the FTR-400DX.
As i get closer to retirement I’m growing more interested in reaching out around the world. My first assignment in the US Army was a hear in Izmit, Turkey. The idea that I can cover most if not all bands with one radio is appealing.