It has 8 GB how is that not enough in between charges?
Kobo and Amazon don't contain *SD options but other e-readers do [1].
As insinuated, I find it is overrated. You can even run Calibre in Docker [2] to serve it over HTTP(S). And as you know, Kobo have a web browser. So you could put the books you're likely to read on your Kobo (8 GB is a lot) and serve the rest via that way. You could also serve the content over your phone via USB OTG.
If you're off the grid for a long time, I actually recommend something else instead: put your smartphone off, e-reader on, and keep a (at your option relatively, to <3 your battery) charged powerbank with you. Not necessarily for your smartphone, but for your e-reader!
Kobo and Amazon don't contain *SD options but other e-readers do [1].
As insinuated, I find it is overrated. You can even run Calibre in Docker [2] to serve it over HTTP(S). And as you know, Kobo have a web browser. So you could put the books you're likely to read on your Kobo (8 GB is a lot) and serve the rest via that way. You could also serve the content over your phone via USB OTG.
If you're off the grid for a long time, I actually recommend something else instead: put your smartphone off, e-reader on, and keep a (at your option relatively, to <3 your battery) charged powerbank with you. Not necessarily for your smartphone, but for your e-reader!
[1] https://tweakers.net/categorie/804/e-readers/producten/ and select all options at the left at "Geheugenkaart Type (E-reader)"
[2] https://hub.docker.com/search/?isAutomated=0&isOfficial=0&pa...