스타이라이프 [Foreigner] Are all services available by eSIM?
Pre-paid service and two-phone service are not supported.
스타이라이프 [Foreigner] Is it possible to use double eSIM?
It is possible only for MEP mobile devices. Other mobile devices are not allowed.
스타이라이프 [Foreigner] Is it possible to use another mobile operator, using Dual SIM?
Available. (You are able to use it abroad.)
스타이라이프 [Foreigner] How do I select the number if I use a Dual SIM?
You can select the number on the screen when you receive the text message or call.
스타이라이프 [Foreigner] Does eSIM also operate NFC service?
eSIM does not have NFC function. You have to use the Pay application to use the NFC function. (Paybook, Samsung Pay, etc.)
스타이라이프 [Foreigner] If I delete the eSIM from the device, will the mobile service be terminated?
Deleting eSIM in mobile device means only deleting data on the device, your mobile services will be maintained.
To cancel the mobile service completely, please call the customer service center.
스타이라이프 [Foreigner] Can a foreigner sign up?
Foreigners can sign up after foreign registration card application and credit card authentication done via Direct Shop. You can activate it by yourself at Direct Shop after confirmation of Alien Registration Card(ARC).
스타이라이프 [Foreigner] I am trying to make a mobile subscription, but I can not authenticate myself.
When signing up online, please fill out the registration application form after self-authentication process via credit card(app card or ARS).
※ Check card and AMAX card are unavailable.
스타이라이프 [Foreigner] How do I change my mobile plan?
Launch skylife app or visit skylife.co.kr and select MY SKY > Mobile > Mobile plan, after logging in.
You can also change it through our customer center.
스타이라이프 [Foreigner] How do I change my mobile supplementary service?
Launch skylife app or visit skylife.co.kr and select MY SKY > Mobile > Mobile Supplementary Service, after logging in.
You can also change it through our customer center. Please note that cancellation of supplementary services are only available via customer center.
출처: 스카이라이프 자주찾는 질문 : https://www.skylife.co.kr/center/consult/FAQ