Top picks for Seongnam Wi-Fi & SIM cards

Discover 26 Wi-Fi & SIM cards in Seongnam on Trip.com, updated February 10, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From PLN 0.43 per person, with an average total of PLN 4.93. Choose the option that suits your plan.

With 43.632k verified reviews, Wi-Fi & SIM cards Seongnam boast an average rating of 4.6.

This week's most popular Wi-Fi & SIM cards: "Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code", with 15.022k reviews and a 4.4 rating.

The next available day tour departs on February 11, 2026. Book now to secure your spot!

Seongnam Wi-Fi & SIM cards usually take about 1 hours — perfect for a relaxed, immersive experience!

February is the perfect time to visit Seongnam! Choose from Wi-Fi & SIM cards available day tours, including seasonal favorites like Global (66 countries) | 4G/5G eSIM | Total Package | 1-7 days | 24H Billing | Real-Name Auth Required (Hong Kong & Taiwan) | QR code.

Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.

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26 results for Seongnam Wi-Fi & SIM cards

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Reviews/Trip Moments

Reviews: South Korea 5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code
Guest User2026-02-09
Great value and easy to install. I've had no problems. I now always use trip.com for eSIM cards.
Reviews: South Korea | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-02-09
It's very convenient and affordable. You can order it on your computer and scan the QR code to pre-download it to your phone. There's no need for complicated SIM card returns and resets. After boarding the plane, select your E-SIM account for your phone's network and deactivate your original account. Once you arrive in your destination country, remember to select mobile data first, then activate roaming. That's it!
Reviews: South Korea SKT eSIM | Unlimited Data + 010 phone number | 1-90 days | 24-hour billing | QR code
Guest User2026-02-10
I definitely would recommend buying this if you don't care about having a functioning phone number. It was nice and I got the chance to use data exclusively despite wifi being everywhere in Seoul and Busan!
Reviews: South Korea 5G eSIM | 1-30 days | Daily Package / Total Package | QR code
Guest User2025-10-09
I’m totally obsessed with this Korean eSIM! Before, when I carried a Wi-Fi egg, it would always lose signal when I was squeezed into the subway in Myeong-dong. I even lost a SIM ejector tool once when switching to a physical SIM card—such a hassle. But this time, I chose KT Telecom’s eSIM, and it totally unlocked a seamless internet experience. I received the email with the QR code just 3 minutes after placing the order. After scanning the code on my iPhone, the activation was done in 1 minute.
Reviews: South Korea 5G eSIM | Dual Network Coverage | Daily/Data Package | 1–30 Days | Calendar Day Billing | QR Code
Guest User2026-02-06
I travelled so many countries as i am a seafarer and i recommend trip.com to purchase esim it's very fast process and good esim
Reviews: South Korea SKT | 4G eSIM | Day Pass | Unlimited data + 010 phone number | 24H Billing | 1-90 days | QR code
Guest User2026-01-26
The SIM card worked perfectly from the moment I inserted it. Fast and stable internet, good coverage both in cities and during trips. I had no issues with connection or speed, even when using maps, social media, and video calls. Very easy to activate, no additional setup required. Definitely recommend for travelers visiting Korea.