My father using s9 256gb for quite some time and I can say that its a good phone but not the best. Everything looks good but the battery is little disappointing. it has got 6.2 inch screen hange and I don’t know why this happens in almost every samsung smart phone. maybe it only happens with me I don’t know . I only think about it’s battery which is 3500 MAH which is small in comparioson to it’s big size and advance feature. so it’s only good not the best.nut this phone features is the best but on;ly battery is less.