I did some research and I am currently deciding between the Onyx Boox Poke Pro and the Kindle Oasis. Regarding the criteria which are important to me:
NEUTRAL:
1. Making and Syncing annotations / highlights: With the Android based Poke I would mainly read PDFs and annotate them. With the Kindle I would use Kindle's native AZW format.
1.1 Kindle Oasis allows to...
- make annotations/highlights/bookmarks in AZW ebooks (but NOT in PDFs)
- export annotations/highlights/bookmarks including the page numbers
- read the ebook including it's annotations via the the cloud reader (browser) on Linux Desktop.
- I'm not sure whether I can make annotations via the cloud reader and have that synced to the Kindle erader.
- the amazon cloud reader also allows for reading content (up to 50mb) offline.
1.2 Onyx Poke Pro allows to...
- making annotations/highlights/bookmarks in Epubs and PDFs
- export annotations/highlights/bookmarks including the page numbers (epub and pdf)
- read the PDF formated ebook including it's annotations via a pdf reader on Linux Desktop (most pdf readers display the annotations/highlights but not all, especially the annotations are not display with some. The following have worked well: Firefox, Okular).
- add annotations on a Linux Desktop via a PDF editor (Okular works on Linux) and sync those via any cloud service to the ereader device.
- offline reading is of course possible on Linux as the files are stored locally.
1.3 The Oasis and the Poke are capable of adjusting color temperature
1.4 The Poke has a capacitive touchscreen. I read on review sites that the Oasis has a capacitive touchscren as well but I couldn't find any information on this on the official Amazon website.
PRO OASIS
2.1 The Oasis has a bigger screen (7" vs 6").
2.2 The Oasis' battery probabaly lasts quite a bit longer (my guess would be 50%?)
2.3 The syncing of annotations is probably a bit smoother with the Oasis (the Poke requires setting up a drop box (or something similar) account and a Desktop pdf viewer/editor).
2,4 AZW files are about 2-3 times smaller (based on
https://ebooks.stackexchange.com/que...ats-is-smaller + I assume mobi files about the same size as AZW files (azw is based on mobi)) if I download directly from Amazon as AZW. But if I convert from epub to AZW, AZW might be the same or even bigger than pdf (based on
https://help.vellum.pub/file-size/).
PRO POKE
3.1 All annotations, highlights (exported and viewed as part of an ebook) taken with the Oasis will always require a Kindle device to view and further edit them. This is not the case when editing PDFs with the Poke.
3.2 The Poke has the ability to take (ebook independent) notes and sync them. I would do this via android apps like Dropbox and a markdown editor app. I'm not sure if the Oasis can do this.
3.3 Poke has A2 mode which is better for browsing the web and reading PDFs.
3.4 The Poke is ~50$ less expensive (in Europe).
3.5 The Poke is 20g lighter (194g vs 175g).
3.6 The Poke Pro seems to have a plastic based Mobius screen (acc to
https://medium.com/@OnyxBoox/how-muc...g-9a7a76b30e2c) while the Oasis has a glass based screen (acc to
https://goodereader.com/blog/reviews...the-kobo-forma). Glass based screens are much more fragile than plastic based screens.
Reason why I don't consider the following devices: Paperwhite: no color temperature regulation. Kobo devices: No annotations in PDFs. Pocketbook devices: Surface seems rubbery which I don't like. Tolino (shine 3): Bad PDF reading experience (switching between reflow and normal pdf mode takes long).
Options which I haven't explored enough yet: There might be other ebook formats besides PDF which store the annotations as part of the ebook file (and not in a seperate file): mobi? epub3? others? This would have the advantage that I don't have to switch from pdf-reflow to pdf-normal mode to make an annotation (but this is pretty easy with the moon+ reader) and mobi/epub3 file sizes are much smaller than pdfs I guess. Does anyone know whether there is ANY format, besides pdf, which stores annotations "in-book"?