Well, I like being able to just move the sim card between my phones (I have multiple for development purposes)... so while you can "easily" call and have the ac

Well, I like being able to just move the sim card between my phones (I have multiple for development purposes)... so while you can "easily" call and have the account switched between sim cards - if all your phones are Micro, then you can just move the card... if, on the other hand, you have a Micro and the new phone is a Nano... then you'll have to go through extra steps to move between phones. This, of course, assumes you want to do that more than once when you upgrade to the new phone. I like switching between my Android and my Windows phone and that becomes more difficult if the SIMs don't match. Granted, I did find a converter I hadn't thought of looking for before until typing this reply so it's even less needed: https://www.amazon.com/iPhone-Nano-SIM-Card-Adapter/dp/B009GB6DBO/ref=pd_sim_147_5?_encoding=UTF8&psc=1&refRID=TVDGJEA5BYSQHDKDQCMK https://www.amazon.com/iPhone-Nano-SIM-Card-Adapter/dp/B009G...