Sorry, the iPhone X is not eSIM compatible. At first glance, this phone appears to be like the rest of Apple's eSIM compatible phones, like the iPhone XS, XS Max, XR, 11 and 12. However, the iPhone X was launched in 2017, a year before eSIM compatible phones.

The iPhone X was Apple’s first model to incorporate the notch and Face ID technology, which can cause confusion if you don't examine it closely.