Now that I’ve seen the mockup side by side with j1 I am kinda curious about the TOH (at least the visual part).
On J1 the design of the back cover feels like it’s another part as it should. On j2 the top and bottom parts of the phone are not inside the back cover.
J1 looks like TOH is another part of the phone while on J2 it might look like an extension that can protrude only from the back.
Let me give a bad example to get my point across.
Let’s assume I want to make a huge home speaker as a TOH for my J1 picture something like this:
Here there can be a slot/cutout where J1 can sink halfway through, making it feel like it’s the other half of the phone.
With J2 since TOH will start from the edge of the device:
with the same example J2 will look like it’s floating or glued on top of the speaker.
I am not sure if I managed to get my point across, but maybe we can get more information from Jolla regarding the thinking process behind this design for TOH?
That would make things clear maybe 