niether of those will do well although the Kobo's pan would help.
Onyx M90
9.7" Pearl Eink Display
1600 mAh battery
WiFI , Browser
Digitizer Stylus
SDHC (32GB max)
2GB on board storage
330grams
Handwriting Recognition, Text to Speech, Dictionary
Supported Formats
ADE EPUB and PDF , EPUB PDF DOC DOCx XLS PPT PPTX CHM PDB MOBIPOCKT FB2 DJVU TXT HTML
MP3 WAV JPEG PNG BMP TIFF GIF
same price as Kindle DX. Available in a week or two.
https://www.mobileread.com/forums/sho...&highlight=m90
also
https://www.mobileread.com/forums/sho...d.php?t=127120