Does doppel come with a warranty? November 15, 2018 16:45 Updated Twelve-month warranty doppel comes with a twelve-month warranty. For more information view our Terms of Service. Related articles Is doppel water resistant? What comes in the box? Does doppel monitor heart rate? Do I need a smartphone to use doppel? I am sensitive to nickel. Can I wear doppel? Comments 0 comments Please sign in to leave a comment.