Q1. Do you know if T-Mobile International pass works well in Korea?
A1. I never heard anyone using t-mobile plan here but i think it should fine.
For phone number, you need a local Korea number so that people can call you with that number. If you think you will not be using calls that much, then you should be okay with your own number.
Q2. I’d like to ask which specific area in Incheon airpot I can purchase a pocket wi-fi?
A2. You can rent a pocket wi-fi at Incheon Airport. But just to be safe, try to book one online so that they don't run out.
Q3. Where do I find a trazy sim card?
A3. You can find the trazy sim card on its website.
https://www.trazy.com/experience/detail/korea-sim-card-international-shipping-service
Q4. Can I buy a SIM card at the airrport, if I am under 18 years old (International age) ?
A4. Yes, you can buy SIM card at the airport even if you are under 18. You don't have to show your passport. Also, you don't need to make any reservation. Other option, you can rent a pocket wifi.
Q5. Does the internet work with ESIM?
A5. Yes, it works. Esim is a sim card that you download to your phone instead of physical sim card.
Q6. Can I rent one Wi-Fi egg for my family of 4? Can it support 4 phones whe we travel together?
A6. Most of the egg can connect up to 3 devices at the same time. You could rotate using the wifi or borrow 2 eggs might help.
I’m solo traveling from Seoul on my way to Busan and want to take a tour of Gyeongju on November 10th. I noticed that you accept tour for two. Would i be able to join others? Please advise.