The last three, maybe four years I have always been going back and forth between iOS and Android, mainly because of HTC devices (I love their design). Last November I switched to the Nexus 6P and started using it, thus replacing my iPhone. I am not going to talk about what OS is better (both OSes are very good, so it really depends on your needs). I am sure everyone has his/her opinion about that. I will try to write about my subjective experience. First let me say that if you do not want to start customizing and searching for the best apps, Android is still lacking in the out of the box experience. The difference is not big, but it is the small things that add up to the total experience. I was really in love with my Nexus. I loved customizing it, love the widgets. I started using Google Now and was sometimes amazed by its capabilities (which come at the expense of our privacy though - if you care about that..). At some point I came to the realization, that everything is really a matter of perspective. People are complaining that iOS is not customizable enough. That might be true, but in Android this capability comes with a cost. Everyone is talking about widgets, for example. I had one calendar widget on my main screen, and then one widget for Google Keep, some folders with apps and a background picture widget, and the weather. Most of the times and in order to glance at these widgets, I had to go out of the app I was in and then scroll to the page that had the widget I wanted to look. Anyway, widgets are really nice, but when you start using iOS and Android, the difference is not so big. Actually, in iOS you can just have a glance of all information from anywhere. So, iOS is actually more efficient und utilitarian than Android. The share sheets on Android is another interesting area. iOS has made a lot of progress, but this is where Android really shines. What made me return to iOS though? I was at a concert with my wife and I started making videos. My Nexus saved these videos, but it was running low on battery. When I returned home, my Nexus had shutdown and when I charged it, I had a very bad surprise. All of my videos were gone! I guess, the Google camera app had only temporarily saved these videos and since the Nexus had no battery charge left, all videos were deleted..I was so angry. The first and most important thing for a smartphone is reliability. After that, I could not trust my Nexus anymore. I am now back to an iPhone 6S Plus, and yes, some things are not working as I got used to in Android, but the overall user experience is still better, especially for people that have Macs too. The main points where Android is still lagging are: UI in iOS is more fluid and smooth. I never have lags. With the Nexus, this was unfortunately not the case.. Tap on the top bar to scroll up. This is really great and I don't know why Google hasn't implemented it yet. Hey Siri works more reliable than "Ok, Google". I can reliable set my timers and alarms. The quality of apps on iOS is really better. Skype, OneNote, DKB (internet banking - German). The difference is quite big. The Android UI looks more "geeky". I like it, but iOS looks more beautiful (of course this is subjective). The display on iOS is amazing and text rendering much better. I know, most people would say that the Nexus (and other Android flagships) have 2K AMOLED displays, but look at the iPhone 6S Plus: The screen looks like painted on the glass. It looks amazing. The 1080p resolution is good enough. Yes, text might look better on Android, if text rendering was on par with iOS. It is similar to the text rendering on MacOS and Windows.. The hardware quality. I believe that only HTC can match the quality of the iPhone. Updates. Need to say more? Messaging. Hangouts is not on par with iMessage. Of course, Android is a very capable OS and I will continue following it. I also had the chance to use the Dev Beta 4 of Android N. It is looking very promising, but still, I decided to go back to Apple. Now I can use Things and my other Mac apps, and have a better integration between my devices. I am losing in some functionality (especially the extensibility of Android and the keyboards, which are better), but overall I believe that Apple is still the best for me. I also like where iOS 10 is going. I believe that Android will always be like Windows. Very capable, but not as polished as iOS (which is more limited though).