Welcome to Republic of Korea! Your T-Mobile plan gives you unlimited data at up to 2G speeds and texts at no extra cost. Calls at 25 cents/min. Want our fastest data and unlimited calls? Get an International Pass for just $5/day. Check it out: t-mo.co/intl-pass1. Enjoy your stay!
I had to back to airport to rent wifi. coz, I bought iphone 15 in USA, unable to get sim care exchange. so next day I was entered to Korea, back to Incheon airport to rent wifi.