iPhone X sports dual SIM card slots, allowing users to have two different phone numbers and two different providers without having to switch devices. This is a great feature for people who travel a lot and need to keep their personal and work lives separate.
Additionally, iPhone X supports VoLTE, so calls will be clear even over degraded networks. Finally, the Face ID system on the phone is incredibly secure, making it difficult for anyone other than the owner of the phone to unlock it.
