https://wccftech.com/dual-sim-support-coming-to-future-iphone-models-as-hinted-in-latest-ios-12-beta-5/

In less than two months, Apple will release its flagship for the year 2018 and we couldn’t be more excited. We’re expecting the Cupertino giant to release three variants of the iPhone. While one would be an upgraded version of the iPhone X, the other would be a beefed-up bigger version boasting a 6.5-inch display. Lastly, there will also be a 6.1-inch LCD variant of the device which will be comparatively cheap. We have previously heard that Apple might be working on a dual-SIM iPhone which will be released later this year. Now there is evidence found in iOS 12 beta 5. Let’s check it out.

Apple seeded iOS 12 beta 5 for developers yesterday which houses evidence that dual-SIM support is coming to the iPhone. A system component which is responsible for the creation of diagnostic reports adds new references to the “second SIM status” along with a “second SIM tray status”. Apart from this, the “dual sim device” reference was also found on another component.