The current iPhone models sold everywhere but the United States that have a SIM card slot do not have 5G mmWave. The only models to have 5G mmWave are the US SIM-less versions. The United States is not the only country to have 5G mmWave. These systems also exist in Australia, Croatia, Japan, Malaysia, Peru, Singapore, South Africa, the Republic of China "Taiwan," and Uruguay. Right now, not even iPhone customers in those countries can use 5G mmWave, so is there any sign of any country getting a version that has both a SIM card slot AND 5G mmWave? Also, have any of you with a US iPhone from back when they did have SIM card slots been able to use the 5G mmWave systems in any of these countries using a plan from that country?