Does the eSIM connect the moment I reach Changi Airport?

Yes. If you install your Yeohaengyusim eSIM before departure, it connects to the Singtel network automatically right after landing at Changi Airport. You don't need to buy a separate SIM at the airport or hunt for a Wi-Fi zone; you can call a Grab or open Google Maps as you walk out of arrivals.

Singapore is small, but I am worried about coverage.

Because Singapore's territory is small, its telecom infrastructure is built very densely. Through the Singtel and StarHub networks it boasts 99% coverage, not only in the city centre but across Sentosa Island, Jurong and the Changi area. You will hardly ever experience the internet dropping out while travelling in Singapore.

Do I need data to use Grab in Singapore?

Yes. Grab is one of the most widely used ways of getting around in Singapore. It is cheaper and more convenient than a taxi, but it can only be booked through the app, so a real-time data connection is essential. You will find yourself using it often even for short distances, such as getting to a hawker centre or between shopping malls, so prepare a stable data connection in advance.

Is the plug type in Singapore different from Korea's?

Yes. Singapore uses type G, the British-style 3-pin socket. It differs from Korea's type C or type F plugs, so be sure to pack a type G adapter before your trip. Most hotels will lend you an adapter, but it is more convenient to have one ready.

Can I use a hotspot with the Singapore eSIM to share data with other devices?

Yes. Most Yeohaengyusim Singapore plans support the hotspot (tethering) function. If you are bringing a tablet or laptop on your trip, you can share the internet with several devices from a single smartphone eSIM. Check whether hotspot is supported when choosing your plan.

Does eSIM work in Singapore?

Singapore supports eSIM, and plans start from ₩2,999. Install it with the QR code you receive after buying, then just turn on data roaming after you arrive and you are connected straight away. There is no need to swap your SIM.

Travel eSIM or carrier roaming: which is cheaper for a trip to Singapore?

For a short trip or light data use, a travel eSIM is usually cheaper. Unlimited roaming from Korean carriers costs about ₩11,000–₩15,000 a day, but with an eSIM you can buy just the days of data you need in advance. For a short trip for one or two people, an eSIM has a big advantage; for a family or very heavy data use, compare carrier unlimited roaming too.

Can I keep using my Korean number while travelling in Singapore?

Yes. The eSIM works as a data-only second line, so your Korean SIM and number stay as they are. Use the Yeohaengyusim eSIM for data only, and keep receiving calls, texts and KakaoTalk on your Korean number.

Can I add to or extend my Singapore eSIM plan?

Yes. When you use up your data or the plan period ends, you can buy a new plan at any time. Keep using the eSIM profile you already installed; there is no need to install it again, so you carry on without interruption.

Do I set up the eSIM before I leave or after I arrive?

We recommend installing it (registering the QR code) before you leave, while you have Wi-Fi. Data starts when you turn on data roaming after you arrive in Singapore. Just remember "set up before you leave, switch on when you arrive" and you can use the internet as soon as you land.

How many GB of data do I need for a trip to Singapore?

For mostly maps and messaging, we recommend about 1 GB a day; to use plenty of social media and photo uploads, about 2 GB a day. If you stream a lot of video or tether a lot, an unlimited plan is better. You can always buy more if you run short, so it is fine to choose a little extra at first.

Does my smartphone support eSIM?

You can use it if your phone supports eSIM. iPhone supports it from the XS and XR onwards; Galaxy phones sold in Korea from the S23, Z Flip4 and Z Fold4 onwards. Dial *#06# in the phone app: if an EID number appears, your phone supports eSIM. If it is SIM-locked, it needs to be unlocked.

Singapore eSIM plans

Instant delivery

A travel eSIM for Singapore starts from ₩2,999 and works as soon as you buy it. In Singapore it connects automatically to local networks such as Singtel · StarHub · M1 (4G/LTE, 5G where supported), with population coverage of about 99%. Install it with the QR code before you leave and you can use the internet as soon as you land, with no roaming setup.

Sent instantly by email
30-day refund
Customer support in Korean
Credit card · Apple Pay

Singapore eSIM at a glance

Price: From ₩2,999
Local networks: Singtel · StarHub · M1
Network: 4G/LTE & 5G
Activation: QR code — install before you leave
Recommended data: Maps and messaging 1 GB a day · more room 2 GB a day · video: unlimited

eSIM plans you can use in Singapore

Data	Validity	Price
Unlimited	1 day	₩2,999
Unlimited	3 days	₩7,519
Unlimited	5 days	₩12,039
Unlimited	7 days	₩15,806
Unlimited	10 days	₩21,834
Unlimited	15 days	₩31,628
Unlimited	30 days	₩61,764
1 GB	7 days	₩4,505
2 GB	15 days	₩6,766
3 GB	30 days	₩9,026
5 GB	30 days	₩12,039
10 GB	30 days	₩21,080
20 GB	30 days	₩33,135
50 GB	30 days	₩49,709

Singapore, Asia's leading city-state, is a place where world-class infrastructure and a rich mix of cultures live side by side. The dazzling night view of Marina Bay Sands, the mysterious Supertrees of Gardens by the Bay, the colourful street art of Haji Lane, and the delicious food of chilli crab and the hawker centres. It is a destination that Korean travellers have loved consistently too. Singapore is small in area but has endless things to enjoy, so to make the most of even a short itinerary, Google Maps and real-time transport apps are a must. On the MRT from the airport to the city centre, and while exploring every corner of Sentosa Island, a stable data connection makes the trip far easier. Install your Yeohaengyusim eSIM before departure and you will be online right after landing at Changi Airport. Enjoy Singapore to the full with just your smartphone, no SIM card swap needed.

Flight time from Korea

About 6 hours 30 minutes (direct flight from Incheon)

Time difference

1 hour behind Korea (UTC+8, KST -1)

Best season to go

February to April (dry season, relatively little rainfall)

Plug type

Type G (British-style 3-pin, adapter needed)

Why an eSIM really helps in Singapore

Singapore is one of the countries with the best digital infrastructure in the world. A dense 5G network covers the whole city, so with just an eSIM you can enjoy fast internet anywhere. In Singapore especially, ride-hailing apps like Grab, food delivery apps like foodpanda, and bookings for all kinds of attractions are all done online, so without a data connection the trip itself can become inconvenient. You need data when ordering at a hawker centre and when showing your Night Safari ticket on your smartphone. Install your Yeohaengyusim eSIM in Korea in advance and it connects to the Singtel network automatically the moment you arrive at Changi Airport. You don't need to look for a SIM shop or stand in a long line locally. It is far cheaper than carrier roaming, and since you keep your existing Korean SIM in place and simply add the eSIM, you can still receive calls and texts on your Korean number. The shorter the trip, the more it matters that the internet never drops for a single moment from arrival to departure, so you can enjoy Singapore without regrets.

Network coverage in Singapore

Carrier

Singtel

+ StarHub

Network

4G/LTE & 5G

Coverage

99%

How do I install a Singapore eSIM?

1
Buy a plan
Choose a data plan for Singapore and complete payment.
2
Scan the QR code
Open the email we sent and point your phone camera at its QR code.
3
Install the eSIM
Complete the eSIM installation as prompted. Doing it before you leave is simplest.
4
Connect on arrival
Once you land in Singapore, switch data roaming on and you're online.

1
Buy a plan
Choose a data plan for Singapore and complete payment.
2
Scan the QR code
Open the email we sent and point your phone camera at its QR code.
3
Install the eSIM
Complete the eSIM installation as prompted. Doing it before you leave is simplest.
4
Connect on arrival
Once you land in Singapore, switch data roaming on and you're online.

Which plan is right for me?

Short trip

For a short 3–7 day trip, an unlimited data plan is ideal.

Business trip

We recommend a high-data plan with plenty for video calls and email.

Long stay

Staying a month or more? A large-data plan gives the best value.

Family trip

Families sharing a connection across multiple devices should pick a tethering-enabled plan with a generous data allowance.

eSIM, local SIM or pocket Wi-Fi: what suits a trip to Singapore best?

	eSIM	Local SIM	Pocket Wi-Fi
Activation	Instant (QR code)	Buy locally	Pick up / delivery
Setup	2 minutes	SIM swap needed	Separate device
Price	From ₩2,999	₩10,000~50,000	₩5,000~15,000/day
Network	Local 4G/LTE	Local 4G/LTE	Local 4G/LTE
Devices	1 smartphone	1 smartphone	Up to 5
Flexibility	Top up any time	Fixed data	Daily rental
Best for	Ideal for travellers	Long stays	Families / groups

How about these destinations?

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Brunei

Cambodia

Indonesia

Laos

Malaysia

Philippines

Vietnam

China

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Italy

Japan

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Singapore eSIM FAQ

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