Apple has enabled the E-Sim functionality in all its latest iPhones and will continue with the future line-ups. The iPhone 12 is the first device from Apple that supports 5G, but it comes with a catch.
As reported by MacRumors, an internal training document from Apple’s Sales Web resources has been leaked, which states that the iPhone 12 in Dual SIM mode will throttle the speed down to 4G LTE instead of running the 5G Speed.

It’s still not sure if Apple will support the full mmWave 5G in its iPhone 12 line-up in other news.