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					Originally Posted by zebradude  I thought I would jump in again and make things more confusing!     
In order for CDMA phones to use the LTE bands they DO need SIM cards. 
 
Ex: My iPhone 6+ (Sprint) has a SIM card. 
Ex: My Xoom Tablet LTE (verizon) has a SIM card. 
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 Aye... and to makes things still MORE confusing, before LTE was even a thing, some Verizon smartphones came with a Vodafone SIM card to provide international service.