Can you elaborate on the feature you're referencing? I'm currently looking at getting a new e-reader and am specifically debating between the Kindle Paperwhite and the Kobo Libra 2.
Kobo has direct integration with Pocket, so as long as you sign into your Pocket account from your Kobo, you can download, read, or archive articles directly on the Kobo. You don't need to do the wonky workaround like emailing the Pocket article to your Kindle to get it to show up.
See below:
https://help.kobo.com/hc/en-us/articles/360017763753-Use-the...
Kobo also has first-class integration with Overdrive/Libby for borrowing digital library books.