There are many 3D model viewers for Android (for example Emb3D is quite nice) which can open .obj files that can contain large number of objects. I did not search a lot, but couldn’t find one that can easily show/hide individual objects in the model (of a specific material in an .obj file).
You can view the Slicer scene on Android phone in virtual reality, but it requires a running desktop computer and currently you cannot interact with the models just view them.
There could be web-browser-based solutions as well. There are several websites that allows you to view 3D models on your phone, see for example https://sketchfab.com/.