Re: How is the camera
I used the iPhone 6 Plus as my primary device from September of last year through earlier this summer. The camera on that phone is terrific, with a simple interface and consistently good photo quality under most conditions. I never thought another Smartphone camera would give it a run for its money.
The Samsung S6 series definitely has! After using both phones, I can say without hesitation that the camera on the S6 (and now the Edge+ since it's basically the same) are a step above the iPhone camera. The most obvious notably step up is in sensor resolution. But we all know by now that megapixels aren't everything. In fact, a general rule of thumb has been that the higher the megapixel count, the lower the low light photo quality. And this is usually true if all other things are equal. But Samsung has managed to have a higher megapixel sensor AND still maintain very good low light capability. Part of this is due to image processing, another part is due to its very fast lens, and finally it's also a very good sensor. Having more megapixels means potentially more detail, and more leeway when cropping.
With its very fast lens, the S6 series is terrific in low light. One glaring example of the S6's superiority over the iPhone 6/6 Plus is in its low-light video recording. Try shooting an identical scene with both photos and notice that the S6 video is brighter - partly due to its faster lens, but perhaps also because of its image processing and sensitivity. Plus, I think the OIS is just better on the Samsung as well.
Furthermore, the camera app itself is much better on the S6 series than on the iPhone. SUre, the iPhone camera app is simple to use and very quick. But it lacks many of the features that the S6 series camera app has. Basically, you can just do a lot more, including a Pro mode. Plus now you can Live Stream to Youtube directly from the camera app. Did I mention the S6 series shoots in 4K video? Has a cool video collage mode?
How is the camera? It's superb! Is there room for improvement? Of course, we still have a long way to go to reach the level of a high end point and shoot. But it means having a very capable camera with me wherever I go.