Singapore eSIM: Stay Connected From the Moment You Land
Skip the airport SIM queues. A Singapore eSIM gets you fast 4G/5G data the second you touch down at Changi — here's everything you need to know.
Touching down at Changi Airport and wanting to order a Grab, message home, or pull up your hotel address without hunting for Wi-Fi? A Singapore eSIM has you online before you even reach baggage claim.
Why use an eSIM in Singapore
Singapore is one of the most connected places on Earth, but airport SIM kiosks still mean queues, passport scans, and overpaying. An eSIM is a digital SIM you install before you fly. No plastic, no swapping, no roaming shock on your home bill.
Singapore runs on three excellent operators: Singtel, StarHub, and M1. All three offer dense 4G and nationwide 5G, among the fastest in the world.
Expect strong signal across the city-state, including the Marina Bay waterfront, the shopping belt of Orchard Road, and the heritage lanes of Chinatown. Even the MRT tunnels and Sentosa island stay well covered.
How to get connected
1. Buy your Singapore eSIM here and check your email for the QR code.
2. Scan the QR under your phone's cellular or eSIM settings (do this on Wi-Fi before you fly).
3. Land in Singapore, turn on data roaming for the eSIM line, and you're online.
How much data do you need
Light trip (3-5 days): 1-3 GB for maps, chat, and the occasional post
Typical traveler (1 week): 5-10 GB for daily browsing, navigation, and social
Heavy user or remote work: 15-20 GB or an unlimited plan for streaming and video calls
Singapore has plenty of free Wi-Fi, so most visitors find a mid-size plan is plenty.
Good to know
Currency: Singapore Dollar (SGD)
Capital: Singapore (a city-state)
Languages: English, Malay, Mandarin, Tamil
Time zone: SGT (UTC+8)
Must-see: Gardens by the Bay, Marina Bay Sands, Sentosa Island
FAQ
Is my phone compatible? Most phones from the last few years support eSIM, including recent iPhones, Samsung Galaxy, and Google Pixel models. Check your settings for an "Add eSIM" option.
When should I install it? Install before you leave home while on Wi-Fi, then simply enable the line when you land. Your plan's validity usually starts on first use in Singapore.
Can I keep WhatsApp on my own number? Yes. WhatsApp is tied to your original number, not the eSIM data line, so it keeps working as normal.
Yes. A HelloSIM eSIM connects to Singapore's mobile networks the moment you land, giving you fast data across the city-state without buying a local SIM at Changi.
Is my phone compatible with a Singapore eSIM?
Most phones from 2018 onward support eSIM, including iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy S, Note, and Z models. Dial *#06# and look for an EID to confirm.
How do I buy a HelloSIM eSIM for Singapore?
Select a Singapore plan on the HelloSIM website or app, pay online, and receive a QR code by email within minutes. There's nothing physical to ship or collect.
How do I install the Singapore eSIM QR code?
On iPhone go to Settings > Cellular > Add eSIM > Use QR Code and scan it; on Android open Settings > Network & Internet > SIMs > Add eSIM. You can also enter details manually if needed.
Should I install the eSIM before flying to Singapore?
Yes, install it while you still have reliable Wi-Fi at home, but wait to enable data roaming until you land. That way you're ready to connect right after touching down at Changi.
When should I activate my Singapore eSIM?
Most HelloSIM plans begin their validity at first network connection, so activate when you arrive in Singapore. Check your plan details, as some start counting from installation.
Which networks does HelloSIM use in Singapore?
HelloSIM connects to major Singaporean operators such as Singtel, StarHub, and M1, automatically choosing the strongest available signal for reliable, fast coverage.
Is there 5G in Singapore?
Yes. Singapore has one of the world's most extensive 5G networks, with near nationwide coverage. If your phone and plan support it, you'll often enjoy very fast 5G speeds.
Is 4G still available in Singapore?
Yes, 4G LTE blankets the entire island and delivers excellent speeds. Your eSIM will use 4G where 5G isn't available, and it's more than enough for everyday use.
How good is mobile coverage in Singapore?
Coverage is outstanding across the whole city-state, including the MRT subway, malls, Marina Bay, Sentosa, and Changi Airport. Dead spots are rare given Singapore's compact, dense network.
How much data do I need for a week in Singapore?
For a week of maps, messaging, ride-hailing, and social media, roughly 3-5 GB suits most travelers. Choose more if you stream video heavily or use your phone as a hotspot.
How much does a Singapore eSIM cost?
Prices depend on data amount and validity, but short travel plans typically fall in the low single-digit to low double-digit euro range. Check HelloSIM for current Singapore pricing.
How long are Singapore eSIM plans valid?
Validity varies by plan, commonly from a few days up to 30 days. Pick a window that comfortably covers the length of your stay.
Can I use my phone as a hotspot in Singapore?
Yes, HelloSIM data supports tethering, so you can share your connection with a laptop or tablet. Hotspot usage draws from your plan's data allowance.
Can I keep my home number while in Singapore?
Yes. Your main SIM or eSIM stays active for calls and texts on your home number, while the HelloSIM eSIM handles data. This dual-SIM setup is ideal for travelers.
Will I still receive my regular calls and texts?
Yes, if you keep your home line switched on for voice. Turn off data roaming on that line to avoid charges and let the HelloSIM eSIM handle all your internet.
Do I need to set an APN in Singapore?
Usually not, since HelloSIM eSIMs configure the APN automatically. If data doesn't work, check your plan's instructions and enter the provided APN under mobile data settings.
Do I need to enable data roaming?
Yes. Because the eSIM uses a local partner network, turn on data roaming for that eSIM line. This won't cause extra charges as your data is prepaid through HelloSIM.
Does the Singapore eSIM include calls and SMS?
HelloSIM Singapore plans are typically data-only. You can call and message over the internet using apps like WhatsApp, Telegram, FaceTime, or Signal, all widely used in Singapore.
Can I make regular phone calls with the Singapore eSIM?
The eSIM provides data rather than a local phone number, so use VoIP apps such as WhatsApp for calls. This covers most travelers' needs for staying in touch.
What happens when I run out of data in Singapore?
You can buy another HelloSIM plan or add-on to keep going without switching eSIMs. Given Singapore's abundant Wi-Fi, you can easily top up even if your data runs out.
How do I top up my Singapore eSIM?
Log in to your HelloSIM account or app, choose a top-up or new Singapore plan, and it applies to your existing eSIM. Use Wi-Fi to do this if your data has run out.
Can I use the Singapore eSIM in Malaysia or nearby countries?
A Singapore-only plan works within Singapore. If you're also visiting Malaysia, Indonesia, or elsewhere in the region, look for a HelloSIM Asia regional plan covering multiple countries.
Is there an Asia regional plan that includes Singapore?
HelloSIM may offer regional Asia plans covering several countries including Singapore. If your trip spans borders, a regional plan can be more convenient than separate eSIMs.
Will I have internet at Changi Airport when I land?
Yes, if your eSIM is installed and data roaming is on, it connects quickly after you land at Changi. Changi also has free Wi-Fi as a backup while you get set up.
How do I get connected right after landing in Singapore?
Install the eSIM and set it as your data line before your flight. On arrival, switch on data roaming for the HelloSIM line and it should register on a network within a minute or two.
What download speeds can I expect in Singapore?
Singapore consistently ranks among the fastest mobile markets worldwide, so on 5G you can see very high speeds, and even 4G comfortably handles HD streaming and video calls.
What is the emergency number in Singapore?
In Singapore, dial 999 for police and 995 for fire or ambulance. The international number 112 also works from mobile phones, and these calls go through without a data plan.
My Singapore eSIM shows no service, what should I do?
Confirm data roaming is on for the eSIM line, toggle Airplane Mode on and off, and try manually selecting an operator like Singtel. Restarting the phone usually fixes registration issues.
The eSIM won't register on a network, how do I fix it?
Wait a couple of minutes after landing, then manually select a Singaporean network in Settings. Make sure the HelloSIM line is enabled and set as your data source, and reboot if needed.
Can I use the eSIM for Grab and Google Maps in Singapore?
Yes, the data works well with Grab, Google Maps, and other apps you'll rely on. Booking rides and navigating are smooth given Singapore's strong, fast network coverage.
Should I download offline maps before visiting Singapore?
It's optional, since coverage is excellent almost everywhere, but offline maps are a handy backup and let you plan routes without using data if you prefer.
Can I install the Singapore eSIM on two phones?
No. Each eSIM QR code works on only one device. If you need data on a second phone, buy another plan or share your connection via hotspot.
What happens to the eSIM after my plan expires?
When the validity ends or the data is used up, the eSIM stops working but remains stored on your phone. You can top it up to reactivate it or delete it in settings.
Can I get a refund on a Singapore eSIM?
Refunds usually apply to eSIMs that haven't been installed or activated. Review HelloSIM's refund policy and contact support if you had an issue before activating.
Is a HelloSIM eSIM cheaper than roaming in Singapore?
Usually yes. Standard roaming from a home carrier can be costly, while a prepaid HelloSIM plan gives you a clear, lower cost and predictable spending during your trip.
Do I need to register or show my passport for the eSIM?
No. Unlike a local physical SIM, which requires passport registration in Singapore, your HelloSIM eSIM is bought and set up online with no in-country paperwork.
Can I use the eSIM on the Singapore MRT and underground?
Yes. Singapore's networks provide coverage on the MRT and in most underground stations and malls, so you can stay connected while getting around the city.
Can I buy the Singapore eSIM after I've already arrived?
Yes. As long as you have some internet, such as Changi's free Wi-Fi or your hotel connection, you can purchase and install a HelloSIM eSIM once you're already in Singapore.
Is the Singapore eSIM good for a stopover or short layover?
Yes. For a brief layover, a small data plan keeps you online for maps, messaging, and updates. Install it before you fly so it's ready the instant you land at Changi.
