Top picks for Ulsan Wi-Fi & SIM cards

Discover 25 Wi-Fi & SIM cards in Ulsan on Trip.com, updated January 14, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From EUR 0.08 per person, with an average total of EUR 2.25. Choose the option that suits your plan.

With 38.36k verified reviews, Wi-Fi & SIM cards Ulsan boast an average rating of 4.5.

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 12.49k reviews and a 4.4 rating.

The next available day tour departs on January 15, 2026. Book now to secure your spot!

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

January is the perfect time to visit Ulsan! 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.

Search attractions or local attractions & tours
Available Today
Available Tomorrow

25 results for Ulsan Wi-Fi & SIM cards

1
2

Frequently asked questions about Ulsan Wi-Fi & SIM cards

How many Wi-Fi & SIM cards are available in Ulsan on Trip.com?

What are the best Wi-Fi & SIM cards in Ulsan?

What are the top-rated Wi-Fi & SIM cards in Ulsan?

How can I contact Trip.com customer support?

Can I change or cancel my booking?

How can I get discounted prices?

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 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 | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-01-14
1. Add esim 2. Turn on mobile data 3. Turn on esim + data roaming 4. Network selection turn off and on until SKT is shown Bought a daily 2GB plan for a 4-day trip ($3.69) and used 5.47GB out of 8GB, which was sufficient for Naver Maps, Google Maps, Subway Korea, Papago, Instagram, WhatsApp, XHS, etc. Cons: I would prefer a total GB plan rather than a daily plan. I ran out of the 2GB on the first day when I got confused by subway directions involving express trains like KTX, ITX, AREX and metro trains. (2GB is not enough when you’re lost! 3GB is the least!) Next time, I’ll get a total 8GB plan instead.
Reviews: South Korea 5G eSIM | Dual Network Coverage | Daily/Data Package | 1-30 Days | Calendar Day Billing | QR Code
Guest User2025-12-15
Easy to install from the trip app and connectivity is excellent in Busan. I had also received a Very good discount
Reviews: South Korea 5G eSIM | Dual Network Coverage | ChatGPT | 1–30 Days | Instant QR
Guest User2026-01-07
I used it in Korea without any issues! Wi-Fi is so ubiquitous in buses, restaurants, cafes, public institutions, and more, I had a ton of data left over. I'll definitely be purchasing it again at a lower price!
Reviews: Asia 9 Destinations 5G eSIM | Japan, Thailand, Vietnam, Indonesia, Korea & More | 1–30 Days | Instant QR
Guest User2026-01-11
I used this in KL, Bangkok and Shanghai. Overall the signal was ok. Sometimes we do get a drop out but it’s not often. We managed to use all social media platforms with this eSIM at Shanghai. Only thing is if you want to hail a ride you’ll need a number for it in china.
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.