Amazon.com: Kobo Sage | eReader | 8” HD Glare Free Touchscreen | Waterproof | Adjustable Brightness and Color Temperature | Blue Light Reduction | Bluetooth | WiFi | 32GB of Storage | Carta E Ink Technology : Electronics
Kobo Touch Tablet Memory Cards
The Kobo Glo HD Has a Hidden SD Card - Good e-Reader
KOBO - KOBO CLARA 2E-Ocean Blue | Euronics
The Kobo Libra H2O SD card is soldered onto the motherboard - Good e-Reader
I can confirm the kobo Nia has an internal SD card : r/kobo
Kobo Glo HD E-book Reader Review - Consumer Reports
The Kobo Glo HD Has a Hidden SD Card - Good e-Reader
Rakuten Kobo Nia lettore e-book Touch screen 8 GB Wi-Fi Nero | eBook Reader in offerta su Unieuro
Upgraded Clara HD to 256GB SD Card - MobileRead Forums
I can confirm the kobo Nia has an internal SD card : r/kobo