iPhone 6s and 6s plus brought 2 great features for iPhones; Live Photos and 3D touch. Live Photos allow to capture animated images. When you capture any image using official camera app, just make sure Live Option is enabled. It looks like a still photo, but when you press on the image, it comes to life. So you can remember, when or on what occasion you captured the image. It may make you feel nostalgia sometimes.
Related; Did you know you can download beautify Live Wallpapers for iPhone 6s and 6s Plus
3D touch in iPhone 6s and 6s plus recognizes the difference between a simple tap, lighter tap and harder tap, and then act accordingly. For example : You can peak at your emails in inbox without opening them with a lighter tap, when a you press it harder while peaking, it will open. In the same way, you can also do it with photos and videos. 3D touch also works with many applications, like you can write a post or upload a photo on FaceBook without opening FaceBook app in full screen. Just press on FaceBook App iCon on home screen, and it gives you some options, that works like a shortcut.
We already know about such features, don’t we? However, Apple has shared 2 videos on YouTube that you can watch below.