I'm trying to understand the differences between the iPhone 6 models. https://www.apple.com/iphone/LTE/ -1- Is it correct that there is an iPhone 6 model A1586, A1586 (GSM), and an A1586 (CDMA)? Three separate models all with basically the same model number? This sounds a bit silly. -2- Looking at the lists of LTE bands, can someone please explain why the top two models would not work with any UK carriers? For example, the "3" network inside the UK: this company uses LTE bands 3 and 20. Given these two bands are listed in the top section, why would only the bottom model work for this network? Thank you.