Case for Samsung Galaxy S6 phone, i needed mount it to wall.
Xiaomy Redmi Note 5A version here:
There is some tolerances inside of case to hold the phone, if will not fit perfectly,
you can edit Fusion360 file(included) or use some double tape or even few papers
as i did:)
I did not use inner holder at all, just put some double sided tape on the lid(from inside) to hold the phone.
There is some small holes as well so you can push power/volume button even if phone is inside of case(with tiny stick, toothpick for example), but no hole for home button(i do not want to let users push it).
I am using it with custom app what i have developed, but you can use it with any app (as some weather or clock etc.) of course.
So if you have some extra Galaxy S6 and is useless for you now...you can use it again on the wall:)
Prusa i3 MK3