I have friends with both. They are also both very comfortable with their current phones, like them enough, but are curious if all the new features are "worth it" or gimmicks. What are your thoughts? I think the dust and water resistant factors are probably good, but I have never had those problems myself. I think the HDR real-time is SWEET, 4K is a bit a head of its time, and the fingerprint sensor makes me nervous. Heh. I do prefer larger screens so that is a little too small for me, but I know it's a great screen! If battery life is anything like the Note 2/3 - I know anyone who upgrades will be happy. My life changed drastically when I went from charging here and there a couple times a day, to charging every other night!