This model will hold a large sized cellphone horizontally on top of a PM5 performance monitor similarly to the official PM5 phone holder (https://shop-uk.concept2.com/parts/353-smartphone-cradle-for-pm3-pm4-and-pm5.html).
I like this type of design as it can fit different phone sizes and very easy to mount.
The 3mf file is already oriented for easiest printing. I recommend using brim to be on the safe side and avoid failed prints.
The author remixed this model.
This is a remix of the original to be fully printable without supports, by adding slight chamfers and making the arms thicker