Reddit reviews inkBOOK Lumos 6 Inch eReader Frontlight 4GB Color Temperature Management
We found 1 Reddit comments about inkBOOK Lumos 6 Inch eReader Frontlight 4GB Color Temperature Management. Here are the top ones, ranked by their Reddit score.
Glare free - paperlike 6" E Ink screenFront light with temperature color management*4GB Storage for over 5000 ebooksDual-core CPU and up to 3 weeks of battery lifeinkBOOK OS based on Android*
Backlighting is common enough among e-readers at this point, but adding an SD card slot narrows the field a lot. You're basically looking at something like an Inkbook Lumos (I'm not sure if that's a per se upgrade from the Kobo) at the low end and the Boyue Likebook Mars or so on in the midrange.
That said, alternately, at that point you'd also have the Kindle Paperwhite 32GB as an option (no SD card slot, but more storage than anything else in its price range).