Top picks for Ulsan Wi-Fi & SIM cards

Discover 24 Wi-Fi & SIM cards in Ulsan on Trip.com, updated December 24, 2025, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From GBP 0.08 per person, with an average total of GBP 1.92. Choose the option that suits your plan.

With 33.579k verified reviews, Wi-Fi & SIM cards Ulsan 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 10.054k reviews and a 4.4 rating.

The next available day tour departs on December 25, 2025. Book now to secure your spot!

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

December is perfect for visiting Ulsan! Choose from Wi-Fi & SIM cards available day tours, including seasonal hits 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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24 results for Ulsan Wi-Fi & SIM cards

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Reviews/Trip Moments

Reviews: South Korea 5G eSIM | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code
Guest User2025-09-14
For the average traveler, a hotel's star rating is a crucial guide for choosing accommodations. There are multiple ratings, ranging from one to five stars, but what are the criteria for each rating, and how do they differ in terms of service and amenities? This article will provide the definitions and standards of hotel ratings from one to five stars (including domestic and international differences), the specific differences in service, facilities, and hospitality, typical hotel chains for each rating, market prices for accommodation (including domestic and international differences), how to choose a rating based on the intended use, and an analysis from a real estate developer's perspective. This article explains, in an accessible and commercial manner, the impact of hotel ratings on towns and regions.
Reviews: South Korea 5G eSIM | Dual Network Coverage | ChatGPT | 1–30 Days | Instant QR
Guest User2025-12-23
This was my first time using an eSIM to access the internet while overseas. Previously, I found purchasing and replacing physical SIM cards a hassle, but eSIMs eliminate that hassle entirely, making them incredibly convenient. 🍋 The entire process, from application to setup, was completed online, and I was able to start using it simply by scanning a QR code. The instructions were easy to understand, and even though it was my first time using an eSIM, I was able to set it up without any trouble. 📣 The data speed was very stable in urban areas, and I was able to use social media, map apps, and watch videos without any issues. Although there were some slight drops in speed in some locations, I felt it was sufficient for everyday use. 🪾 The fee was also relatively reasonable, significantly lower than international roaming. For this price and data quality, I think it's great value for money. 🍓 The fact that no physical SIM is required and that it can be set up before departure was particularly appealing. However, I was a little concerned about the limited compatible models and weak signal in some areas. 😔 Overall, I was very satisfied with the service. This eSIM is highly recommended for those who want to easily use the internet while traveling or staying abroad for a short period of time.
Reviews: South Korea | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2025-12-23
This is my second time to use this eSIM it work really well and I can watch TikTok also this was my main point ☺️
Reviews: South Korea SKT eSIM | Unlimited Data + 010 phone number | 1-90 days | 24-hour billing | QR code
Guest User2025-12-19
The SIM card is very easy to use, and the internet was very stable everywhere we went, including outside of Seoul! I'm so glad it was so easy and convenient; I highly recommend it! Installation was also easy, and while we were driving into the city, we used the link to register our passport and gain access to our number!
Reviews: South Korea SKT | 4G eSIM | Day Pass | Unlimited data + 010 phone number | 24H Billing | 1-90 days | QR code
Guest User2025-12-17
The eSIM interface is quite easy to use; even someone like me, who is not particularly tech-savvy, can manage it.
Reviews: South Korea | 4G eSIM | 1-30 Days | Daily Package / Total Package | Qecode
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.
Contact Center <br>of the year 2025
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