If you can use a webbrowser on your device, you can use SLR webplayer. 1080p60+
If you download videos, it doesn't really matter as long it can do 4K60+
For mobile devices, you can find out about your device on gsmarena.com
Look up your phone, scroll down to Platform
Don't mind the GPU, look up the Chipset specs. ie Exynos, Qualcomm, ...
The Quest 2 ie has Qualcomm Snapdragon XR2
6K90 HDR
8K60 HDR
I don't think the display is HDR though.