I have a Samsung Galaxy S5, model SM-G900F. This is a 4G/LTE phone which I purchased from a carrier in Singapore. It is unlocked. I would like to confirm that this phone can be used in South Korea by purchasing a SIM card there.
For those who don't know, Korea uses CDMA. Last time I went there with a GSM phone, it would not work, but that was some years ago and I am hopeful that some combination of 4G/LTE and the passing of time has changed things.
If it can work, I would also like to know if there is a particular telecom I should get the SIM from, and whether it's better to shop in the airport, in Incheon town, or somewhere else like at 7-Elevens or whatever. Please don't suggest Seoul, as I'm not going there.
I mostly need internet access on the phone, preferably 4G. I don't care much about voice and SMS, but would like to know if it will work or not.