Top picks for Ulsan Wi-Fi & SIM cards

Discover 25 Wi-Fi & SIM cards in Ulsan on Trip.com, updated February 12, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From USD 0.09 per person, with an average total of USD 3.97. Choose the option that suits your plan.

With 25.358k verified reviews, Wi-Fi & SIM cards Ulsan boast an average rating of 4.6.

This week's most popular Wi-Fi & SIM cards: "South Korea 5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | QR Code", with 6.462k reviews and a 4.6 rating.

The next available day tour departs on February 13, 2026. Book now to secure your spot!

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

February is the perfect time to visit Ulsan! Choose from Wi-Fi & SIM cards available day tours, including seasonal favorites like South Korea 5G eSIM | TikTok & ChatGPT Available | Day Pass/Total Data Package | 24-Hour Billing | 1-30 Days | 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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25 results for Ulsan 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 User2026-01-23
I was able to use it comfortably, so I recommend it. I got the 100GB per day plan, but I only used LINE, maps, and store search, so I didn't actually use even 1GB per day (lol). It's also helpful that you can check your current usage. I'll use it again next time.
Reviews: South Korea | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-01-22
We had some problems with installing the e-sim, but trip.com customer service came to rescue and everything is good and well. Signal is good too.
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 5G eSIM | Dual Network Coverage | ChatGPT | 1–30 Days | Instant QR
Guest User2026-01-17
I was able to use PayPay even in Korea! Amazing! ⭐︎I installed it according to the instructions after arriving at the airport. I couldn't connect properly, so I contacted customer service through the app and they told me that data roaming wasn't turned on. I quickly turned data roaming on in the settings and it started working again! Customer service lists various ways to contact you, such as email and LINE, but LINE wasn't working, so I think it's best to contact customer service through the app. It was resolved in 2-3 minutes! It's definitely best to resolve this while connected to the airport's Wi-Fi.◎ I went to Myeongdong and there were no problems with the signal. There are very few eSIMs in Korea that accept PayPay. I recommend this!
Reviews: South Korea SKT eSIM | Unlimited Data + 010 phone number | 1-90 days | 24-hour billing | QR code
Guest User2026-01-23
Easy setup process. Great signal overall. Plus you get a korean local number for receiving phone calls or text messege.
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
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