Speaker is average. few issues I feel first it feels heavy to hold in the hand initially your hands will pain, second the battery is average although fast charging helps but battery drains very fast so if you use single phone it could be an issue. samsung should have provided better battery.i have good use of voice calls, mail and what's app hence have to keep two phones hence it's manageble but if you are a single phone users battery may be an issue please note.
Camera just average
Big negative as per current news Android 8 Oreo not coming on this which is a big negative. I came to know about this after buying.