Best eSIM for South Korea
Compare 1989+ data plans from 39 providers. Sort by price per GB, coverage, and features. Activate in minutes.
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20/1989 eSIM plan(s)
Last updated: September 9, 2026
Data
20 GB
Validity30 day(s)
South Korea
Data only
Network(s) : SK (5G, 5G), KT (5G, 5G)
Special Offer: 30% OFF
$7.31
$10.44
$0.37/GB
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Data
30 GB
Validity7 day(s)
South Korea
Data only
Special Offer: 15% OFF
$11.73
$13.80
$0.39/GB
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Data
10 GB
Validity7 day(s)
South Korea
Data only
Special Offer: 15% OFF
$4.08
$4.80
$0.41/GB
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Data
20 GB
Validity7 day(s)
South Korea
Data only
Special Offer: 15% OFF
$8.50
$10.00
$0.42/GB
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Data
10 GB
Validity1 day(s)
South Korea
Data only
Special Offer: $3 CREDIT
$4.50
$0.45/GB
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Data
30 GB
Validity30 day(s)
South Korea
Data only
Special Offer: 15% OFF
$14.28
$16.80
$0.48/GB
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Data
10 GB
Validity30 day(s)
South Korea
Data only
Network(s) : SK (5G, 5G), KT (5G, 5G)
Special Offer: 30% OFF
$4.87
$6.96
$0.49/GB
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Data
20 GB
Validity30 day(s)
South Korea
Data only
Special Offer: 15% OFF
$10.03
$11.80
$0.50/GB
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Data
8 GB
Validity1 day(s)
South Korea
Data only
$4.07
$0.51/GB
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Data
20 GB
Validity30 day(s)
18 countries
Data only
$10.99
$0.55/GB
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Data
20 GB
Validity90 day(s)
South Korea
Data only
Special Offer: $3 CREDIT
$11.10
$0.55/GB
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Data
5 GB
Validity30 day(s)
South Korea
Data only
Network(s) : SK (5G, 5G), KT (5G, 5G)
Special Offer: 30% OFF
$2.84
$4.06
$0.57/GB
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Data
10 GB
Validity30 day(s)
South Korea
Data only
Special Offer: 15% OFF
$5.78
$6.80
$0.58/GB
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Data
20 GB
Validity30 day(s)
South Korea
Data only
Network(s) : SKTelecom (5G), LG Uplus (5G)
$11.73
$0.59/GB
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Data
10 GB
Validity1 day(s)
12 countries
Data only
Special Offer: $3 CREDIT
$5.90
$0.59/GB
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Data
20 GB
Validity30 day(s)
South Korea
Data only
Network(s) : LG U+ (5G), SKTelecom (5G)
$12.00
$0.60/GB
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Data
20 GB
Validity30 day(s)
South Korea
Data only
Network(s) : LG U+ (5G), SKTelecom (5G)
$12.00
$0.60/GB
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Data
20 GB
Validity30 day(s)
South Korea
Data only
Network(s) : SKTelecom (5G), LG Uplus (5G)
$12.30
$0.61/GB
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Data
24 GB
Validity8 day(s)
South Korea
Data only
$15.50
$0.65/GB
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Frequently Asked Questions about eSIM for South Korea
We compare 1989+ eSIM plans from 39 providers for South Korea. Our #1 pick is a top provider, selected for offering the best balance of price, network quality, and features among plans with at least 10GB of data. For budget travelers, a budget provider offers plans starting from $3.00, the most affordable option with at least 5GB of data. For best network quality, a network provider delivers exceptional reliability with 5G speeds and a network quality score of 8/10 or higher.
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Mobile networks in South Korea
Here are the main telecom operators in South Korea:
✓ SK Telecom: Established in 1984, SK Telecom is the largest telecom operator in South Korea and has over 26 million subscribers. It has the best mobile coverage and speed in the country, with the highest 4G LTE download speeds of up to 75 Mbps. According to Opensignal, it has the highest 4G availability and the fastest 4G download speed. It also offers various internet and mobile plans, including prepaid plans, postpaid plans, and family plans.
✓ KT Corporation: Founded in 1981, KT Corporation is the second-largest telecom operator in South Korea. It has a subscriber base of over 20 million and offers 4G LTE download speeds of up to 100 Mbps. According to Opensignal, it has the highest 4G download speed and the highest 4G latency. It also offers various services, such as broadband internet, fixed-line phone services, and mobile services.
✓ LG U+: LG U+ is the third-largest telecom operator in South Korea, established in 1995. It has a subscriber base of over 12 million and offers 4G LTE download speeds of up to 60 Mbps. According to Opensignal, it has the highest 3G download speed, but is behind SK Telecom and KT Corporation in terms of 4G availability and download speeds. It also offers a variety of services, such as broadband internet, fixed-line phone services, television services, and mobile services.