Samsung Pay has added support for Discover cards and you can now add your cards to the popular mobile wallet app. They haven’t yet added Discover to the official list of supported cards so I suspect there will be a more official announcement sometime next week. Discover cards still do not work with Android Pay so that will likely be the next mobile wallet that Discover will want to be added to (Update: as the comments correctly point out Discover cards do work with Android Pay).
Hat tip to Porkylicious on /r/churning
