The signal is 4G+ and i really loved it.. When my friend are keep looking for the public wifi, i can keep calm because this sim card really useful.. Furthermore, its more affordable than rental the portable wifi if you are travelling alone for a long time..

Always an excellent choice to buy and use this SIM card for my Korea trips. Fast data service and very convenient collection.

Quick replies. Friendly. Speaks English! Fixed a problem right away.

In terms of data speed, this would definitely be a 5! : ) Network is very much reliable.

However, the ease of pick-up can still be improved. The lines are long, and is rather confusing because the booth is rather difficult to find in the departures area.

Otherwise, I would very much recommend getting this sim!

我第一次来韩国了，原因就是去陌生的地方，所以对旅游又紧张又期待。韩国很有名的旅游国家吗，化妆品、衣服都是很时尚的。韩国人挺喜欢打扮，男生帅女生美。我在网上热情地搜索过韩国旅游时注意事项，韩国旅游时必须去过的地方等等。那时我发现了这个网站，感觉很老号的。百度搜索哪儿都能看这个网站。其实商品也挺好用的，有值得商品。能拨电话！这个是本商品的最强点，而且不限流量！！！我才知道这个公司的产品为什么韩国旅游时必备品。

They were very polite and patient when I missed my pick up for the SIM card. Helped me through the process, gave me several options, and checked to make sure everything went well!

Stanley has been exceptionally helpful and very responsive on FB messenger and he answered all my questions very promptly and even went out of his way to find the contact centre number and plan for me. I am very impressed with the quality of service given by krsim and would definitely purchase a sim from them! Thank you Stanley! :)

The sim card was very convenient as I was able to find my way through and hotspot my data to my traveling companions.

the man is very kind，language is very good，quite helpful.

If you’re in need of fast and reliable 4G LTE + 100 minutes of outgoing calls and 100 outgoing texts (incoming is free), make sure to purchase in advance on their website or just find a booth at the airport terminal. Receiving and activating my SIM took only a couple minutes without any hiccups. I had the 10 day SIM Blue plan, which was cheaper than any of the competitors because of the online discount. I travelled mostly in Seoul and Busan but also went out into the countryside and I still had strong signal no matter where I went.Also, whenever I had a question or issue, the Facebook messenger customer service agent was very helpful.

I highly recommend this service when visiting Korea.