Guys im looking for upgrading from my budget lumia 535 to either a new lumia 830 or 930. Lumia 930 is a great phone but it lacked sd card (something i used to a lot to store my musics and videos), Lumia 830 is slightly cheaper but i feel snapdragon 400 might be outdated anytime soon and i want to have a better experience on gaming. The big problem is how both of these phones perform on official windows 10 mobile build 10586 (not redstone), are there any bugs in these phones? Any advice is appreciated. Thank you.