English 
Tiếng Việt Should I choose buy a SIM card or rent WiFi for Korea is a question asked by many people preparing for their trip. Some say buying a SIM is better because it's cheaper, you can put it directly into your phone and don't have to carry an extra device... Others say a portable WiFi device has a higher speed, can be used by multiple people... So, should you choose a SIM or a travel WiFi device for your trip to South Korea? What is a reasonable price? Read the analysis below and you will know the choice that suits your needs.
Should I buy a SIM or rent a WiFi device for South Korea?
After using both South Korean 3G/4G SIM cards and international portable WiFi devices I have made a comparison table of features as shown below.
Comparison of features between portable WiFi devices and travel SIM cards
>>> South Korean travel WiFi rental service is highly rated by users: Rent a travel WiFi device for South Korea
When you travel alone and need to use the internet minimally, you should buy an international SIM card. You can install the SIM into your mobile phone for convenience and browse the internet freely. The cost of a SIM card for short trips is also much cheaper than renting a travel WiFi device.
However, when you travel with a large group, you should rent a travel WiFi device. Because if each person buys a SIM card, the total cost will be much higher than renting a WiFi device. Also, using a SIM card installed in a phone for multiple devices may result in unstable connections and drain the battery quickly.
When you rent a WiFi device, you can share the connection with everyone. If the whole group shares the rental cost, the expense will be significantly reduced. Furthermore, your phone will connect via WiFi instead of 3G/4G, which will save a lot of battery power.
Renting a WiFi device will give you more comfortable internet access than a 4G SIM card.
>>> If you are traveling alone and want to use 4G comfortably, you should: Buy a Korean SIM card
When you travel on an East Asia tour, an international WiFi device is the best choice for you. Because with just one device, you can use the Internet in Japan and Korea. You don't have to buy a SIM card when you arrive in each country like before.
In summary, you should buy a SIM card when traveling alone and using the internet sparingly. If you are traveling in a group, renting WiFi will be the best option. The whole group can comfortably use high-speed WiFi with unlimited data at a very cheap price.
Summary of the latest prices for travel SIM cards and WiFi rentals for Korea today
Currently, there are many places selling SIM cards or renting WiFi devices for travel in Korea. However, there are too many price ranges, causing customers to be confused and unsure how to choose. Therefore, I will share reasonable prices for buying SIM cards and renting WiFi.
A reasonable price for a Korean SIM card is about 400,000 - 700,000 VND. This is the price for Korean SIM cards in Vietnam. With this price, the SIM card will give you a few GB of 4G data, with unlimited 3G. SIM card prices at international airports in Korea will be more expensive.
Is buying a travel SIM card more convenient than renting WiFi?
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WiFi rental prices currently range from over one hundred thousand VND to two hundred thousand VND. This is the daily WiFi rental price. Depending on the limited or unlimited data package, there will be a certain difference in price. Furthermore, the WiFi hotspot devices from rental providers vary in price. Therefore, when looking at prices, you must also consider the features and rental service package.
After reading this analysis, you probably know whether tobuy a SIM card or rent WiFi for Koreanow. Please choose according to your usage needs for your trip. Please refer to the prices to rent WiFi or buy a SIM card at a reasonable price.
