New video camera suggestions

[SHRED]

Looking to upgrade my video camera.

I have been using a Go Pro Hero 2 with a BacPac battery extension for years now.

I mount it behind me on a pole about 3 feet long, turn it on, set a timer on my phone when to change the batteries and sdcard.

I'm looking for suggestions for a camera that gives me least hassle changing up batteries and cards for my approximate 4 hour fishing adventures.

I have an older desktop that I fear will choke on 4K processing. (Win10 64bit, Quad Core 6600 CPU, 8 g ram, a good video card).

I do have a 4K OLED television that I'm sure a 4K video would look great on though.

I'm looking at the Hero 6 or 7 lineup now.

Thanks and tight lines!