I have friends with Galaxy phones and it pains me to watch them when they want to show me a photo or an app. I wonder how they can be happy with such a laggy experience, but they seem blissfully unaware that it's a problem. Maybe they think that's how mobile devices are supposed to work. I was recently asked to take a picture of a family using their Galaxy 6. There was no shutter button to be found. They told me to just tap the center of the screen. So I did. The phone clicked and I handed it back to them. It turned out that I took a picture of my leg as I handed the phone back. I didn't know that after I pressed the shutter, I had to stand stock still for several seconds before it actually took the picture. I guess I'm spoiled by how quickly the shutter on my iPhone works.
You know, now that you mention it: my friend upgraded his Galaxy S4 for an S6 not so long ago. He did experience a speed bump. But what he didn't tell me, and what I did notice myself when he was playing a game I have too on my iPhone (Simcity Buildit) it was utterly slow. It lagged the whole time. Now, I don't mind a bit of stutter if it doesn't occur too often. But I saw constant stutter on his S6. That's bad. I feel bad for him, since he payed a lot for that phone of course. But I didn't tell him, because he didn't seem to mind it at all.
Guess that because he's gotten used to it or something. He had the same with his S4, so I don't think he notices. Although he has seen how it performs on my iPhone 6s, but maybe he just doesn't want that fight about what's better and what not. I know he's the kind of guy who always says "both Apple and Samsung make great phones", so I'm gonna give this one to him because he doesn't dislike iPhones at all.
But that still makes me feel bad for him. If you buy a phone that's less than a year old, you expect it deliver world-class performance, right? Or am I saying something stupid now? Of course, iPhones get slower too. But not after one year. At least, I haven't seen that so far. iPad 3/4 maybe, but that's all.
By the way, it's not just in terms of 'smoothness'. I also noticed how the S6 of my friend constantly reloads apps after short usage of one or two other apps. And that S6 has 1 GB RAM more than my iPhone 6s. Just shows how badly Android, or more specifically TouchWiz, handles memory management. Can't get over how bad it is.
Before anyone is going to say: "but you haven't used an Android phone yourself, so your argument is invalid", I do have a Nexus 5X. Great device, not going to deny that. But even with stock Android its RAM management is bad. It has the same amount of RAM as my iPhone, but there is such a major difference in how quickly apps reload. That's one of the reasons why I stopped using the Nexus. Stock Android is nice, but there's so much work to do in order to make it truly competitive to iOS in terms of performance.