I still have the old Nook Simple Touch with a mini-SD card slot. You can load your ebooks via the SD card, either through connecting it via USB or loading the S

I still have the old Nook Simple Touch with a mini-SD card slot. You can load your ebooks via the SD card, either through connecting it via USB or loading the SD card manually. It doesn't require WiFi and I doubt there is any sort of tracking. It's an old and discontinued version and I am hoping that it keeps going. It also has physical page buttons and great interface.