One Inbox feature I'd love to be pulled into Gmail is attachment previews. It looks like Gmail has quick links to attachments from your inbox, but that doesn't give nearly as much information as a preview - image/video thumbnail, calendar appointment details, shipped order info, etc.

In terms of Gmail achieving the same clean interface as Inbox, for me there are two key reasons I think Inbox's interface is much "cleaner" than Gmail:

Inbox: - Most of the screen is whitespace - Most features are / can be hidden unless I want them

Gmail: - There's text/icons covering nearly every inch of the screen - Most features are always shown on the screen whether or not I want them

Here are some changes that I think would give Gmail Inbox's "clean" look: - Add a big margin to the left/right of emails on the desktop (whitespace) - Give me the option to hide: 1. The left bar (unread count / red dots, chat - I don't use those things 99% of the time I use email) 2. The three icons at the left of messages (I never use those)

Other (probably less important) things I think make Inbox cleaner than Gmail: - Infinite scroll vs. page turner - Showing sender icons to quickly identify who an email's from - This one might just be me being used to Inbox, but the white background behind emails in the inbox vs. the gray background