I don't own iPhone 5 or 5S but I own a Lumia 920 and can say that it produces very good low light photos. Certainly, iPhone 5S can be better at daytimes, cause I've read an article here on WPC that it beats even 925, but still I think 920 has better overall camera. No need to forget OIS and HAAC audio recording. iPhone might be a bit better in daylight shots, but not even the 5S compare tha OIS video recording of 920, it's steady as hell even with held in just one hand. It's just awesomely impressive and HAAC rich audio recordings is really a bonus. Plus with Nokia pro cam you can play with settings. For example, I use ISO 100 or 200 and shutter speed 1/4 sec or 0.5 sec and I can produce images with literally no noise in artificial light. That's not possible with iPhone. And the supersteady videos, I'm just fan of my 920..