Key facts
- COVERAGE
- Singapore
- NETWORKS
- Singtel
- PLAN TYPE
- Data only
- IP ADDRESS LOCATION
- Hong Kong, Asia
- DELIVERY
- QR code by email
How it works
- 1Choose a plan and pay.
- 2Scan the QR code we email you. You can install it before you fly.
- 3When you land in Singapore, turn on data roaming for the Spidot line.
Questions about the Singapore eSIM
Which networks does it use?
Do I get a local phone number?
Can I use it outside Singapore?
How do I install it?
Will my phone work with an eSIM?
Is an eSIM worth it for a one-day stopover?
Will my data work underground on the MRT?
Can I use Grab without a Singapore phone number?
Will my phone connect to a Malaysian network in the north?
Can I take a day trip to Johor Bahru on a Singapore plan?
Will WhatsApp still use my usual number?
Singapore eSIM guide: mobile data for travellers
Singapore is a compact city-state where almost everything runs through a phone. Visitors check MRT routes between Marina Bay, Chinatown and Orchard Road, order a Grab from Changi Airport, look up which hawker stall at Maxwell or Lau Pa Sat is open, book timed entry for Gardens by the Bay or Sentosa attractions, and pay with contactless cards on buses and trains. Many travellers pass through on a stopover of a day or two; others stay a week and add side trips to Malaysia or the Indonesian islands of Batam and Bintan.
A Spidot eSIM gives you mobile data in Singapore from the moment you land. You install it at home, switch it on when you arrive and keep your normal SIM for calls and texts. This guide covers how an eSIM compares with roaming and a local SIM, how much data a stopover or a longer stay needs, what to do at Changi, and some Singapore-specific points such as crossing the Causeway into Malaysia.
eSIM, roaming or a local SIM in Singapore
There are three common ways to stay connected in Singapore. Each has its place, depending on how long you stay and how you use your phone.
Roaming with your home SIM
Roaming is the simplest option: you do nothing and your phone connects on arrival. The catch is cost. Roaming charges and daily passes vary widely between operators, and a few hours of maps, messaging and photo uploads can use more than you expect. Check your operator's terms for Singapore before you fly, especially if you are on a long-haul itinerary that passes through several countries.
A Singapore prepaid SIM
Prepaid tourist SIMs are sold at Changi Airport and in convenience stores and phone shops around the city. Registration with your passport is required, and you need to find a counter, queue and swap out your home SIM unless your phone has a second slot. For a stay of several weeks that can be worthwhile; for a stopover it is often more effort than it is worth.
A Spidot eSIM
A Spidot eSIM adds a data line alongside your home SIM. You buy it online, receive the QR code by email straight after payment and install it before you travel, so there is nothing to do at the airport except switch it on. Plans start from $5.90. Most plans are data-only without a Singapore number. If you need a local number, for example to receive calls from a restaurant or a delivery driver, look at our Data + calls plans.
How much data to plan for
Singapore is a city where you are rarely far from Wi-Fi, but in practice most travellers rely on mobile data while out exploring, because public Wi-Fi often requires sign-up and drops as you move. These rough figures can help you estimate your usage:
- Maps and transport apps: a few megabytes per hour of walking or riding the MRT.
- Ride-hailing and food delivery: light; each booking uses very little.
- Messaging and email: light, though sending photos and videos adds up.
- Social media: moderate to heavy, especially with video reels and stories from Marina Bay or the Supertree Grove.
- Video calls: typically several hundred megabytes per hour.
- Streaming video: heavy, often over a gigabyte per hour in high definition.
Stopovers and short stays
A 24- to 72-hour stopover is one of the most common ways to visit Singapore. A small fixed data plan is usually enough to get from Changi to your hotel, find your way around and book rides. If you are flying on to another country, remember that a Singapore plan is for use in Singapore; you will need a separate eSIM for your next stop.
A week or longer
For a week or more, especially if you work remotely, make regular video calls or share a lot of content, a larger plan or an unlimited plan is more comfortable, though speed may slow after heavy use. If you visit Singapore often on business or as a transit hub, a no-expiry plan keeps unused data for your next trip. You can check how much data is left and add more data whenever you need it.
Before you travel
Installing an eSIM needs an internet connection, so do it at home on Wi-Fi rather than at the gate. First check your phone supports eSIM and is carrier-unlocked.
Then follow the install guide for iPhone, Samsung or Pixel. Label the line "Travel" or "Singapore", keep your home SIM for calls and texts, and set the Spidot line for mobile data.
- Install a day or two before departure, so any questions can be sorted out calmly.
- Keep the QR code email somewhere safe.
- Download the apps you plan to use, such as a ride-hailing app and a transport app, before you leave, and sign in while you still have home Wi-Fi.
- If your airline or hotel uses a mobile check-in or arrival form, complete it before you fly where possible.
Arriving at Changi Airport
Most visitors arrive at Changi Airport, one of Asia's major hubs, with several terminals linked by Skytrain and the Jewel complex with its indoor waterfall. Others arrive overland across the Causeway or the Second Link from Johor in Malaysia, by ferry from Batam or Bintan in Indonesia, or on a cruise ship at Marina Bay Cruise Centre or HarbourFront.
When you land, choose the Spidot line for mobile data and turn on data roaming for it, as explained in our data roaming guide. Allow a minute or two for the phone to connect. If it does not, switch flight mode on and off, or restart the phone.
From Changi to the city
The MRT connects Changi with the city, with a change of train on the way to most central areas. Taxis and ride-hailing pick-up points are clearly signposted at each terminal. With data, you can compare the journey time by train and by car, share your live location with whoever is meeting you, and find your hotel entrance once you arrive, which can be harder than expected in the large mixed-use developments around Marina Bay and Orchard Road.
Long layovers
If you have a long layover and are staying airside, Changi has free Wi-Fi, but your eSIM is handy if you leave the terminal to visit Jewel or head into the city for a few hours. Keep an eye on the time and your gate information in the airline's app.
Coverage across the island
Singapore is small and densely built, and mobile coverage is generally strong across the main island, including the city centre, residential estates, shopping malls and the MRT network, much of which runs underground. Mobile data in Singapore is provided via Singtel.
There are still a few places where signal can be weaker:
- Deep inside buildings: basements, lower car-park levels and the inner parts of large malls and hawker centres sometimes have weaker reception.
- Nature reserves: trails in Bukit Timah Nature Reserve, MacRitchie Reservoir and along the Southern Ridges are well used but can have patchy spots in dense forest.
- Offshore islands: Pulau Ubin and the Southern Islands such as St John's and Kusu are reached by bumboat or ferry. Coverage is usually fine near the jetties but may be weaker in quieter corners.
- Near the border: in the north around Woodlands and Kranji, and in the west near Tuas, your phone may sometimes pick up a Malaysian network.
The Causeway and Johor Bahru
Many visitors cross into Johor Bahru for a day by bus, train or car. As you approach the checkpoints, your phone may switch to a Malaysian network. A Singapore plan is for use in Singapore, so if you plan to spend time in Malaysia, consider a separate Malaysia eSIM. If your data stops working near the border, check the network name and select a Singapore network manually if you are still on the Singapore side.
Data on the MRT, buses and taxis
Singapore's public transport is efficient and easy to use with a phone. The MRT lines link Changi, the central business district, Marina Bay, Chinatown, Little India, Bugis, Orchard and Harbourfront for Sentosa, and buses fill in the gaps. Journey planners in Google Maps, Citymapper and local transport apps show routes, transfers and arrival times.
Contactless bank cards and mobile wallets can generally be used to pay fares directly at MRT gates and on buses, so many visitors do not need a separate transport card. Check whether your card charges foreign transaction fees.
Ride-hailing and taxis
Grab is the most widely used ride-hailing app in Singapore, and Gojek and other local apps also operate. Street taxis can be hailed or booked through apps too. Ride-hailing needs data to request a car, track it and pay, so it is one of the main reasons to have a working connection from the moment you land. Pick-up points at malls, hotels and attractions are often in a specific drop-off bay, so check the map before you head out.
Walking in the heat
Singapore is hot and humid all year, with frequent heavy showers. Covered walkways and underground links connect many MRT stations with malls and offices, and a map app helps you find the sheltered route. Heat also drains batteries quickly, so carry a power bank on long days out.
Hotspot for laptops and travel companions
Personal hotspot lets you share your eSIM data with a laptop, tablet or a travel companion's phone. It uses whichever line is set for mobile data, so make sure that is the Spidot line. This is useful for business travellers working between meetings, families sharing one connection, or anyone whose hotel Wi-Fi is slow.
Laptops download a lot in the background. Pause cloud sync, automatic updates and photo backups before connecting, and consider a larger or unlimited plan if several devices will share your data.
Staying safe on public Wi-Fi
Singapore has free Wi-Fi in many public places, malls, cafés and hotels. It is convenient for big downloads, but open networks are not always secure, and fake hotspots with official-sounding names can appear anywhere.
- Use your eSIM data for banking, payments and logins.
- Check the exact network name with staff before connecting.
- Turn off automatic connection to open networks.
- Keep your phone's software up to date before you travel.
- Be wary of messages or calls claiming to be from banks, couriers or officials asking for codes or payments; scams of this kind target travellers in many countries.
Practical tips for Singapore
Some local knowledge that makes your data connection more useful:
- Payments: cards and contactless payments, including Apple Pay and Google Pay, are widely accepted. Some hawker stalls and small shops prefer cash or local payment apps, so carry a little cash in Singapore dollars.
- Hawker centres: many stalls have their own opening hours and rest days. Map and review apps help you check before you go.
- Attraction bookings: popular attractions often sell timed tickets online. Booking on your phone avoids queues, and saving tickets offline helps where signal is weak.
- Rules and fines: Singapore is known for strict rules, for example on eating and drinking on the MRT. Signs explain them clearly.
- Weather: sudden tropical downpours are common. A weather app with rain radar helps you plan when to head outdoors.
- Language: English is widely used, alongside Mandarin, Malay and Tamil, so signs and apps are easy to follow.
Combining Singapore with other countries
Singapore is a natural starting point for trips around Southeast Asia. Popular combinations include Singapore with Kuala Lumpur, Malacca or Penang in Malaysia, a ferry to Batam or Bintan or a flight to Bali in Indonesia, and onward flights to Thailand, Vietnam or the Philippines. Many long-haul travellers also stop in Singapore on the way to or from Australia and New Zealand.
For trips through several countries, buy one eSIM per country. You can install them all before you leave and switch the active data line as you cross each border. For a stay in Singapore only, a Singapore plan keeps things simple.