Just heard from some friends that they bought used phone from him and they say its s*it, it was like awful condition but it was good outside (screen, back, ports, etc) and they used his/her warrianty couple times because of phone condition. I will ask to do water test (he will accept it if S8+ wasnt opened because i dont think if it was opened, he didnt installed back water/dust protection). I saw some dirt in charging port and in speakers (its silver so I can easy see it). I saw some test and of course S8+ is better, its flagship but in my case its used. Dont know what to do. He said that "Phone comes with everything (charger, headphones, USB adapters) but no box" but I know box can be used for IMEI to track phone by police. Also he told my dad "S8+ is better than S8 in every way, better processor, faster phone, etc." but I know only difference is size of screen and battery. Also I dont know condition of battery, previoua owner could destroy battery life for those "2 MONTHS OF USAGE" although ports are telling me that phone was in some dirt/mud. And I dont know how will battery be after 2 years because S8+ is old phone with old software and A50 is phone from 2/2019. Never bought used phone, thats why i am sceptical.