Community prompt: Which phone setup worked best after landing in Korea?

Experience

This is a settlykorea operations-team community question, not a submitted customer story. If you recently arrived in Korea, what phone setup actually worked for your first days: eSIM, prepaid SIM, roaming, or a later postpaid plan? Please share your city, stay type, whether you needed calls or only data, whether SMS worked, what blocked app verification, how much it cost, and what you would choose next time. Do not include phone numbers, passport numbers, account details, OTP codes, screenshots with private data, or provider account IDs. Provider rules can change, so readers should confirm the latest plan details before paying.