Top picks for Ulsan Wi-Fi & SIM cards

Discover 22 Wi-Fi & SIM cards in Ulsan on Trip.com, updated February 9, 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From GBP 0.11 per person, with an average total of GBP 2.02. Choose the option that suits your plan.

With 27.784k 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 7.195k reviews and a 4.4 rating.

The next available day tour departs on February 10, 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 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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22 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 User2026-01-26
Great prices compared to other providers. I bought this for my upcoming trip and received the QR code immediately. Looking forward to testing the speed soon.
Reviews: South Korea | 5G eSIM | Day Pass/Total Package | 24H Billing | 1-30 days | QR code
Guest User2026-01-25
I usually use an unlimited eSIM with a number, but I purchased this for the first time for my two-day stay. I haven't used it in crowded situations like concerts, so I'm not sure, but I didn't have any problems with the signal for normal use. It's not suitable if you need a Korean phone number, but if you don't need a phone number, it's good value for money and I don't think you'll have any problems! I haven't used customer support, so I don't know.
Reviews: South Korea SKT eSIM | Unlimited Data + 010 phone number | 1-90 days | 24-hour billing | QR code
Guest User2026-01-25
This is my second time visiting Korea. I also used this service on my previous visit. Unlimited data is something no other carrier offers, so it's very useful. However, the signal strength can be poor from 2:00 PM to 4:00 PM, but as long as you can tolerate that, it's an eSIM that works without any issues.
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 User2026-01-25
Good signal strength in Jeju, although LTE so far and no 5G, however this may be more for mainland. Price is excellent.
Reviews: South Korea 5G eSIM | Daily package/Total package | 1-30 days | 24-hour billing | QR code
Guest User2026-01-25
Everything was great, it's very convenient, the internet always worked without interruptions everywhere. TikTok also loaded fine. It's a wonderful service and I will continue to use it!
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