Nexus 5x here, that headset is the same exact one I bought only with a different branding and a higher price. Overall it's a great headset with adjustable lenses and a head strap, mine came with a screen cleaner as well. It's fairly comfortable but does press on your nose a bit. Only complaints is that you have to take the headset off to adjust the lenses, and that theres no button for you to click. I purchased a ps4 controller which takes a bit of fiddling to connect but works great with all the games I've tried that have controller support. However there are some apps that don't have controller support and require a 'tap', so a cheap bluetooth controller might come in handy, i purchased one thinking it would work for games but aside from using it to simulate a tap it's actually pretty laggy(why i got the ps4 controller).

Here's a link to the headset($24.99): https://www.amazon.com/dp/B01C5IXFI8/ref=cm_sw_r_cp_apa_AvI4xbPAHN26G

And a link to the controller i bought: https://www.amazon.com/dp/B01ELDVFVY/ref=cm_sw_r_cp_apa_qDI4xbVWFG02D

I'm on my phone so sorry for shitty formatting, hope this helps.

EDIT: Not sure how big an S5 is but this headset will benefit from a larger screen, almost made me wish I got a 6p instead.