The 2026 BTS concert in Busan attracted approximately 220,000 visitors over two days, making it one of the city's largest live events.

The BTS World Tour concert was held at Busan Asiad Main Stadium. From early morning, fans from around the globe began gathering around the venue. As showtime approached, entrances, walkways, and surrounding streets became increasingly crowded.

"With this many people using mobile data at the same time, will the internet still work properly?"

At large-scale concerts or events, tens of thousands of people may use mobile data at the same time. This kind of environment is one of the most challenging conditions for checking mobile network quality. While wondering whether the data connection would work smoothly, we began the test from the narrow subway station area and continued all the way inside Asiad Stadium.

For this experiment, we tested four services under the same conditions.

The test was conducted across a total of 26 measurement points in seven areas, including the inside and outside of the main stadium, the inside and outside of the auxiliary stadium, and Busan World Cup Boulevard.
You can also watch the video below to see the actual test results.

In an environment where countless users connect at the same time, actual user experience and stability are more important than simple maximum speed.
In this test, LG U+ 5G recorded the fastest results in most locations.

At large-scale concerts or festivals, where many people use data at the same time, using a stable local 5G network is the best choice.

Especially if you frequently use real-time navigation, mobile payments, social media uploads, or livestreaming, a local eSIM can be more advantageous than global roaming.

Many international travelers preparing for a trip to Korea choose LG U+ eSIM for these reasons, and you can check various eSIM and SIM products on the official LG U+ Korea SIM page.

This BTS concert in Busan was a representative environment where countless people used data at the same time. In the actual comparison results, LG U+ 5G recorded the fastest speed in most measurement points and showed stable connectivity performance. If you plan to visit crowded places such as concerts or festivals during your trip to Korea, a fast and stable data environment can greatly improve the convenience of your trip.
From sharing the excitement of the concert in real time, to finding your way, to instantly recording the moments of your journey, choosing a stable local network is a great starting point for enjoying a more comfortable trip to Korea.