Is it even possible to demand a phone with a specific set of components in such cases? How would a stockist/re-seller even know?
No. Even the seller wouldn't know which one is which. You gotta buy it and then find out. There's a app called Lirum Info Lite; this gives you complete (almost) information about your phone. Go to Menu > CPU and scroll to the end and you can discover your luck.
Have recently bought a 5S. Always rush to this thread to clarify my stupid doubts.
I want to know if my 5S can connect to VoLTE?
Someone told me that only 6 and beyond can do this. Hope he is not right.
iPhone 5S purchased in India does support LTE (available in India). you can use it if you're an Airtel customer as they're the only ones having 4G band (correct me if i'm wrong). i had a iPhone 5S before and have used LTE on it.