Simple...performance. The efficiency of hardware and software design in the Apple ecosystem blows away Android. This is a perfect example of the sum being more than the parts. Specs are meaningless if the performance of the device doesn't follow. The Geekbench numbers on the A11 chip alone (both on single and multi-core) leaves the Android devices in the dust. Add in the implementation of true facial recognition (not the half-assed Android implementation) the AR capabilities and the advanced lensing and processing of images...and there's no contest. Android people love getting hung up in specs that do not translate into real life performance. One example is megapixel count.... Any photographer or videographer will tell you that pixel count alone is not an indicator of image quality. In short....the new iPhone X will be the device to beat for some time to come.