very disappointed

[xzpre86]

the speaker very bad, i recorded on video somthing on high volume  on my t.v send to my wife on whatsup, and the quality of the sound wow wow wow, very very bad, its like 80% less then the original volume.

thats one, tow, the 4k its not 4k, its maybe size like a 4k, but the quality its not 4k, its like regular video, even less.

the mic is very bad, alot of time i send voice speak on whatsup, and they cant hear me, and its not there phone have a problem cause when i press play its like i didnt say nothing.

the wifi wow wow wow, very bad, im near the router and he cant reconize it, sometimes he secceed but sometimes is not.

the brightness goes down auto, i didnt do nothing, every single time!!!

the focus realy bad, he cant lock on, on something, i need to press the screen over and over again!!!! its driving me crazy!!!

so for conculsion, the problems is speaker camera and mic.

i start to think that i should pay more and buy the s8

[najodleglejszy]

keep in mind that videos sent over Whatsapp always get compressed and lose some quality. same for voice recordings. you might record video in 4K but Whatsapp will degrade the quality for faster sending.

for screen brightness, have you tried going to Settings > Display and turning off Adaptive brightness if it isn't working well for you?