>"But even worse, CDMA is slow compared to GSM (HSDPA)" You can't compare CMDA and HSDPA. GSM and CDMA are 2G/3G technologies that support both voice and data.

>"But even worse, CDMA is slow compared to GSM (HSDPA)" You can't compare CMDA and HSDPA. GSM and CDMA are 2G/3G technologies that support both voice and data. HSDPA is data only and commonly known as 3.5G. It was a stop gap until 4G. CDMA had EV-DO rev B as its 3.5G although most CDMA carriers skipped it in favor of just rolling out LTE. Lastly LTE(also a standard) phones all have SIM cards. And with Voice Over LTE the "GSM is superior CDMA" discussion is just plain silly. Case in point Verizon is retiring its CDMA network at the end of this year.[1] [1] https://www.verizonwireless.com/support/knowledge-base-218813/ https://www.verizonwireless.com/support/knowledge-base-21881...