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게시:
When choosing a mobile phone plan in Korea, consider not only data capacity but also whether calls, text messages, and identity verification are required. Data products for short trips and number-based products for long-term residents may offer different features. You should use the Seoul Metropolitan Government's telecommunication information as a starting point and check with the telecommunication company whether actual activation is possible and the necessary identification and payment documents.
Conditions to write down first
Organize your planned length of stay, whether you need to receive domestic calls, how much you plan to use for school and bank verification, and your monthly data usage. Also check the SIM card size of your phone and whether it supports eSIM. If the device was used overseas, it is best to inquire with the seller about the model to see if the product can be used on a domestic network.
What to ask before signing a contract
Check how long the advertised amount will be applied, what the regular fee will be thereafter, and whether VAT and activation costs are included. Also look at the contract period, early termination costs, automatic renewal, and speed after data exhaustion. The question, “Is my number available for identity verification on Korean sites?” is especially useful for long-term residents.
Inspection after opening
Check if calls, texts, and data are available and save the customer service center and cancellation method. If you only use dorm Wi-Fi and then go out, your data may suddenly run out, so check your initial usage. Before leaving the country, check automatic payment and cancellation terms again. If you leave the benefits explained by the salesperson on the contract screen or on paper, it will be easier to compare billing amounts later.
Sources · Checked: 2026-09-09
서울시 · 통신·인터넷
https://global.seoul.go.kr/hmpg/finf/elsi/comm/contPageDetail.do?conts_no=D6067AA192E8432180EDF96112A7C241