Reliable tipster Ice Universe (@UniverseIce) claims Samsung’s mobile division (Samsung MX) has begun developing a commercial rollable phone, reportedly called the Galaxy Z Roll, that can switch between 16:9 and 21:9 aspect ratios.
If accurate, the toggleable format would let users change the screen layout depending on the app or the content they are viewing.
Previous rollable prototypes came from Samsung Display, but the new leak suggests Samsung MX may be working on a consumer device rather than a concept panel.
Samsung rollable: aspect ratio flexibility
A 16:9 aspect ratio is described as ideal for standard YouTube clips and videos recorded on phones, while 21:9 is said to suit movies, long documents and web browsing. In its 16:9 configuration the device should also be more compact and pocket-friendly when not in active use.
Engineering challenge: battery and mechanism
Ice Universe also notes a major engineering hurdle: the rolling mechanism’s motors and rails will occupy internal space, making it harder to fit a high-capacity battery. That constraint could leave less room inside the phone than in current standard foldables.
