There is a community build for the M5Stack Paper S3, which costs the same but has a touchscreen and a microSD card reader (theoretically limited to 32GB but my

There is a community build for the M5Stack Paper S3, which costs the same but has a touchscreen and a microSD card reader (theoretically limited to 32GB but my 128GB card with my entire eBook collection seems to work fine). Only drawback, the magnets are not in the right position to piggyback on an iPhone's MagSafe.