ok no specs just facts.
1. everything the iphone can do the s6 can do. but you can't say that in reverse.
2. nfc just works when applepay doesn't
3. androind version of the handoff feature just works and works on all platforms as long as your using chrome as your browser even on macs. apples handoff only works with apple stuff. not good if your work computers are using windows.
4. multi-color LED notifier so you don't have to have your smartphone in your hand 24/7
5. file sharing with micro sd-cards works with the s6. they don't work on iphone.
6. the notifier system on android works and works better. for example if you have a gmail and you happen to check on your computer vs your phone. the notifier will be cleared on the phone once it's been read.
not so with the iphone you have physically clear from the phone. not smart.
i could go on forever but im short on time.
no specs just facts.
1. Wrong. I could go into specifics, but they are just that - specific to my use case. I find it generally harder to communicate and share when I'm using my Android devices primarily. AirDrop, Shared PhotoStreams, iMessage, FaceTime - all features I use DAILY. All far easier than any work around I've found on Android (mainly because I can't be bothered to get my friends and family to move off awesome stock ways to share/communicate for 3rd party options).
2. ApplePay works just fine for me....not sure what you're getting at? NFC has more functionality on Android perhaps? Like for sharing files (AirDrop)? Another swing and miss.
3. What exactly is the Android version of Handoff? If I have to have a web browser open, that isn't the same. Handoff lets me move seamlessly from ANYTHING - typing a document, spreadsheet, presentation, reading, viewing a webpage, responding to a text, answering a phone call, etc - from one device to another. Yes it's specific to Apple products....it's an Apple feature. There isn't a 3rd party option that works as seamlessly and flawlessly because you're dealing with numerous software and hardware developers. I happen to use all Apple products so this is a killer feature for me that can't be beat.
4. I don't have my smartphone in my hand 24/7....if I miss a notification, I can just check my lock screen for a run down of what I missed....fairly simple. I've never understood where this idea that unless you have a blinking LED light, you'll be tied to your smartphone, staring at the screen all the time. Never found it to be true.
5. Good luck keeping up with those cards. I'd rather do my file transferring wirelessly. One less thing to keep track of. Plus, 128 GB is plenty storage for my iPad and iPhone.
6. Thank God Android FINALLY natively supports actionable lock screen notifications. The whole notifications not syncing thing isn't true. If I read an email on my iPad it goes away on my iPhone. But even so, Notification Center is far more organized on iOS - at least in my opinion. I'm not a fan of all the little icons that clutter my status bar, and Android doesn't seem to group notifications from similar apps very well. I also can't clear a certain group by itself. Of course, I'm sure there is some 3rd party alternative for these things....but I don't care to search and test to find one that works as well as iOS out of the box.
These are all my opinions based on my own use case. YMMV.