The iPhone 12 lineup supports 5G, but there's a limitation with one of the previous features Apple introduced some time ago: Dual SIM mode.
Apple reportedly plans to enable 5G in Dual SIM mode with iPhone 12 lineup later this year

The iPhone 12 lineup supports 5G, but there's a limitation with one of the previous features Apple introduced some time ago: Dual SIM mode.
Did you know that there are smartphones out there that support 5G, and they were on the market before the iPhone 12 lineup was announced? Well, Samsung's not afraid to remind you.
During Apple's announcement of the iPhone 12 and iPhone 12 Pro, the company took some time to let Verizon hype up 5G. Why? Well, obviously, the new iPhones support 5G.
Just a few days ahead of Apple's October 13 online media presentation to unveil the iPhone 12 family and other new gizmos, unconfirmed details about Apple's upcoming lineup have leaked.
The next Apple event unveiling the iPhone 12 family is rumored to take place on Tuesday, October 13, with preorders starting the following Friday, October 16.
Apple confirmed earlier this year that the iPhone 12 lineup would see a slight delay. And, indeed, we're expecting to see the newest smartphone lineup arrive in October. But we may be just days away from a launch, according to one CEO.
In the near future, Apple is going to announce new iPhones. It will more than likely be the iPhone 12 lineup. And those handsets will probably support 5G.
Volume production of upcoming iPhone 12 models is slated to start later this month while AirTags, an upcoming item-tracking accessory from Apple, has already gone into production.
5G is the next big thing for wireless networks, but it's only worthwhile if phones support it. And while, technically, all four new iPhone models are said to support it, there may be limits.
Future iPhone cameras may be able to transfer high-resolution image data from the CMOS sensor to the main Apple chip at higher speeds, boosting live streaming and augmented reality apps over high-speed 5G cellular data networks (based on the mmWave standard).
Apple's upcoming iPhone 12 models launching later this year are expected to adopt cheaper, less complex battery technology in order to offset a pretty costly upgrade to 5G.
Like the other major wireless networks in the United States, 5G is the next major milestone that needs to be reached, and as quickly as possible. AT&T has now reached the big one: nationwide coverage.