As is tradition, iFixit has torn open the latest iPhone and laid its parts bare on a table. It found some interesting details about how Apple might be hiding the crease on the Duo's folding screen and gave it a 5/10 repairability score.
Source: [The Verge](https://www.theverge.com/tech/1018233/ifixit-iphone-duo-teardown-repairability-hinge)