South Korea eSIM for 10 days: a multi-city route

How much data 10 days in South Korea takes

A ten-day Korea trip is usually a three-stop route

Ten days is enough for three stops. A typical version is four nights in Seoul, three in Busan and two more in Gyeongju or Daegu, or five in Seoul and four on Jeju. Two hotel changes mean more data for check-ins, station-to-hotel routes and rail bookings than a five-day trip.

High and low data moments on this route

• Gyeongju is an old town you walk for the day, with map and camera always on, but evenings at the guesthouse are quiet and Wi-Fi works.
• Jeju by car burns continuous navigation data, but less video streaming because you are outdoors.
• The mid-trip rest day for laundry, repacking and uploading photos from the last cities belongs on Wi-Fi.

Why 7-day and 15-day plans do not suit ten days

Our fixed Korea plans run 7, 15 and 30 days. A 7-day plan cannot cover ten days because it ends on day eight, and the 15-day plan is only 3 GB, below even the 5 GB light figure for this length. The real options are the 10 GB or 20 GB plans valid 30 days, or a daily plan.

10 GB over ten days is about 1 GB a day, fine if Wi-Fi helps out. 20 GB leaves room for video and tethering. Daily plans win when you know some days will use almost nothing, since you pay for the days you switch on.

Network and app facts on a multi-city route

• The Korea plans use SKTelecom / LG Uplus, covering big cities and the main rail lines; remote mountain and coastal areas can be weaker.
• In smaller towns like Gyeongju, bus stops and menus are often Korean only; a camera translation app such as Papago helps when you have data.
• City transit cards work in many cities, but check top-up and refund terms with the issuer.

Check before buying: three questions for a ten-day trip

First, where do you sleep and is the hotel Wi-Fi stable? If three nights in four have good Wi-Fi, 10 GB usually holds. Second, do you film and upload video on the road? If so, step up to 20 GB. Third, are you alone or in a group? Tethering a hotspot for travel companions can nearly double the use you estimated. Answering these before you buy beats guessing from an average.

Bottom line for ten days

Our estimates are 5 GB light, 11 GB normal and 22 GB heavy. The 10 GB plan works if you sit between light and normal and use Wi-Fi; 20 GB spares you from watching the allowance.