eSIM for Singapore & Malaysia & Thailand 
Viasimo's Singapore & Malaysia & Thailand eSIM starts at $2.59 for 1 GB over 7 days, running on local 5G networks where available. Plans last 3 to 180 days, arrive by email in minutes and install from your phone's settings, with no app.
Plans cover up to 3 countries
Duration
Unlimited data · 3 Days ×1
$10.99
Does my phone take an eSIM? Check now
Dial *#06# on your phone. If you see an EID number, your phone takes an eSIM. Most phones sold since 2019 do.
Not sure it works on your phone? Check compatibilityWhich networks does the Singapore & Malaysia & Thailand eSIM use?
The host network is chosen automatically when you arrive.
- Data
- 1 GB – 20 GB or unlimited
- Validity
- 3–180 days
- Speed
- 4G LTE / 5G
- Hotspot / tethering
- Supported on most devices
- Activation
- Starts when you first connect in your destination
- Speed management
- Roughly 2-3 GB per day at full speed, sometimes less depending on the local carrier, then reduced
- Top-ups
- Add more data from your account, before the plan expires
- Text messages (SMS)
- Data only: use an app for verification codes
- Connects via
- Hong Kong
- Unused validity
- 180 days before it must be installed
How much data do you need?
The allowances below are our sizing recommendations, not measurements. The plan beside each one is the cheapest option on this page that covers it.
| You are | Plan for | Cheapest plan that covers it |
|---|---|---|
| LightMaps, messaging and the occasional lookup | About 1 GB a week | $2.591 GB, 7 days |
| TypicalMaps, social, photos and some browsing | About 3 to 7 GB a week | $8.005 GB, 30 days |
| HeavyVideo streaming, video calls and uploads | 10 GB a week or more | $13.9910 GB, 30 days |
| Working or sharingTethering a laptop, calls and cloud sync | 20 GB a week or more | $21.9920 GB, 30 days |
eSIM, local SIM or roaming?
Charged per day
Your carrier roaming
Queue and plastic
A SIM at the airport
$2.59
Viasimo, one bundle
Only the Viasimo figure is a price: it comes from today’s live catalog. The other two rows are directional, not quoted rates.
Important to know
- This is a data-only eSIM. It carries no calls or SMS on its own number.
- Your existing number stays on your primary SIM, so calls and verification texts keep working.
- Your phone must support eSIM, and some carrier-locked phones cannot install one.
- Signal varies with location, terrain, congestion and your handset. Dense urban areas are consistently better served than remote ones.
- 5G only works where the host network has deployed it and your phone supports it. Everywhere else it falls back to 4G LTE.
- Unlimited plans run at full speed up to a fair-use limit, then continue at a reduced speed. Read the fair usage policy
Frequently asked questions
Does an eSIM work in Singapore & Malaysia & Thailand?
Yes. Your Singapore & Malaysia & Thailand eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. Coverage runs on 4G LTE and 5G where the network has rolled it out, and falls back to 4G elsewhere.
Do I get 5G in Singapore & Malaysia & Thailand?
Yes, where it has been deployed. 5G runs on The local networks we use in Singapore & Malaysia & Thailand, and your eSIM uses it automatically on a 5G-capable phone, dropping back to 4G LTE outside covered areas. No country is covered everywhere, so 5G availability varies by location.
Can I travel overland from Malaysia to Bangkok with this eSIM?
The eSIM works in all three countries, so data continues across the border. Check the route, though: the UK Foreign Office advises against all but essential travel to parts of Thailand's deep south, including Pattani, Yala, Narathiwat and some Songkhla districts, and its advice mentions the Hat Yai to Padang Besar railway. Many travellers fly from Kuala Lumpur or Penang instead.
Do I need arrival cards for Singapore, Malaysia and Thailand?
Yes, most visitors do. Singapore requires the free SG Arrival Card within three days before arrival, Malaysia uses the Malaysia Digital Arrival Card (MDAC), and Thailand has the Thailand Digital Arrival Card (TDAC), which its official site says is free. Use the official government websites and keep the confirmations on your phone.
Which Thai networks does this eSIM use?
TrueMove H and DTAC, which are now part of the same company. They have strong coverage in Bangkok, Chiang Mai and the main islands such as Phuket, Koh Samui and Koh Phangan. AIS, Thailand's other large operator, is not one of this plan's partners, so in a few remote spots locals on AIS may have signal where you do not.
Will I have signal on the ferry from Langkawi to Koh Lipe?
Near each island, yes, but expect a gap in the middle of the crossing. Langkawi is covered as part of Malaysia, and Koh Lipe as part of Thailand. Your phone will switch from a Malaysian to a Thai network as you approach Koh Lipe. Save your ferry ticket and TDAC confirmation before boarding.
How much data do I need for 7 days in Singapore & Malaysia & Thailand?
For 7 days in Singapore & Malaysia & Thailand, Viasimo sells 1 GB for $2.59 and unlimited data for $21.99. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone.
Installing, keeping your number, topping up and hotspot work the same everywhere: see how it works →
Singapore & Malaysia & Thailand: what to know before you land
This plan covers Singapore, Malaysia and Thailand on one eSIM, suiting the classic Singapore to Bangkok route by train, bus, ferry or short flights. It uses Singtel and M1 in Singapore, Maxis, CelcomDigi and U Mobile in Malaysia, and TrueMove H and DTAC in Thailand. Cities and resort islands are well covered; open-sea ferry crossings and the jungle interiors are not.
- Emergency
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- 191 police
- 1669 ambulance
- Plugs
- GABCO 220–240V
- Currency
- Singapore dollar (SGD), Malaysian ringgit (MYR), Thai baht (THB)
Main airports
- SIN Singapore Changi Airport
- KUL Kuala Lumpur International Airport
- PEN Penang International Airport
- BKK Suvarnabhumi Airport, Bangkok
Crossing from Malaysia into southern Thailand
If you travel overland from Malaysia to Thailand, the main routes are the train via Padang Besar, the road crossing at Bukit Kayu Hitam to Sadao, or the ferry from Langkawi to Koh Lipe. All three countries are on this plan, so your data continues as you cross.
Before choosing a route, check the latest travel advice. The UK Foreign Office advises against all but essential travel to Pattani, Yala and Narathiwat provinces, and to the Chana, Thepa, Na Thawi and Saba Yoi districts of Songkhla, because of ongoing violence in Thailand's deep south. Its advice also covers the Hat Yai to Padang Besar railway line, which passes through the region, so read the details carefully before you book.
Many travellers avoid this area by flying from Kuala Lumpur or Penang to Phuket, Krabi, Hat Yai or Bangkok instead. Short flights between the three countries are frequent, and the eSIM usually connects within a minute or two of landing.
To the east, the UK Foreign Office reports that land crossings between Thailand and Cambodia are suspended, which matters if you planned to continue overland to Siem Reap. Cambodia is not on this plan.
Island hopping in Phuket, Krabi, Koh Lipe and the Gulf
Thailand's islands are a highlight of this route. On the Andaman side, Phuket and Krabi have strong coverage in towns and beach areas, and boat trips to Phi Phi, Phang Nga Bay and the Similan Islands keep signal near the coast but lose it further out. Koh Lipe, reached by ferry from Langkawi in Malaysia or from Pak Bara on the Thai mainland, has coverage around the main beaches but gaps on the crossing.
In the Gulf of Thailand, Koh Samui, Koh Phangan and Koh Tao are well covered on land. The ferries between them and from the mainland at Surat Thani or Chumphon lose signal for part of the journey.
In Malaysia, Langkawi and Penang are similar: good coverage in the main towns and beaches, with gaps in mangrove parks and at sea.
Save your ferry tickets offline, as you may need to show a QR code at the pier. Boat schedules can change with the weather, especially during the monsoon months, and operators often send updates by WhatsApp or LINE.
From Singapore across the Johor Causeway
Most overland trips start in Singapore and cross the Causeway from Woodlands to Johor Bahru by bus, car or the shuttle train. Your phone switches from Singtel or M1 to a Malaysian partner network as you cross, without you needing to change anything.
A new rail link will make this crossing quicker. The Johor Bahru–Singapore RTS Link runs 4 km between Woodlands North in Singapore and Bukit Chagar in Johor Bahru, in about five minutes, and is planned to open in January 2027. Both countries' customs and immigration checks will be done at the departure station.
From Johor Bahru, buses and trains continue north to Malacca and Kuala Lumpur. If you are heading on from Kuala Lumpur, the ETS trains to Ipoh and Butterworth, for Penang, are fast and comfortable but sell out at weekends, so book ahead.
In Singapore, also remember that ferries to Batam and Bintan go to Indonesia, which is not on this plan.
Researched October 2026 · 6 sources
- gov.uk Thailand travel advice: regional risks (GOV.UK)
- ica.gov.sg SG Arrival Card (Immigration and Checkpoints Authority, Singapore)
- imigresen-online.imi.gov.my Malaysia Digital Arrival Card (Immigration Department of Malaysia)
- tdac.immigration.go.th Thailand Digital Arrival Card (Thai Immigration Bureau)
- en.wikipedia.org Johor Bahru–Singapore Rapid Transit System (Wikipedia)
- gov.uk Malaysia travel advice: safety and security (GOV.UK)
Fourteen days from Singapore to Bangkok via Kuala Lumpur, Penang, Langkawi and the Andaman islands
A high-season route from Singapore up through Malaysia that crosses into Thailand by sea, Langkawi to Koh Lipe, then island-hops north to Koh Lanta before flying from Krabi to Bangkok, avoiding the overland route through Thailand's deep south.
When to go Run this route between November and April, when the Langkawi–Koh Lipe and Andaman Sea speedboats sail regularly and seas are calm; from May to October the south-west monsoon reduces or stops many boats, so fly Penang to Bangkok or Krabi instead.
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Day 1 Singapore
Singapore: Marina Bay and Chinatown
Walk the Marina Bay waterfront from the Merlion to the Helix Bridge, then spend the afternoon in Chinatown at the Buddha Tooth Relic Temple and Maxwell Food Centre. In the evening, see the Supertree light show at Gardens by the Bay and the Cloud Forest dome if you have time.
Signal Excellent 5G on Singtel or M1 across the city and the MRT.
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Day 2 Singapore
Singapore: Little India, Kampong Glam and the Botanic Gardens
Start at the Singapore Botanic Gardens and the National Orchid Garden, then take the MRT to Little India for Tekka Centre and the Sri Veeramakaliamman Temple. Walk on to Kampong Glam for the Sultan Mosque and Haji Lane, and finish at Clarke Quay by the river.
Signal Full coverage throughout; complete the Malaysia Digital Arrival Card tonight while you have fast data.
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Day 3 Kuala Lumpur
To Kuala Lumpur: Merdeka Square and Chinatown
Flight Singapore to Kuala Lumpur, about 1 hour, or coach about 5 to 6 hours via the Causeway.
Fly or take a coach north to Kuala Lumpur. In the afternoon, visit Merdeka Square and the Sultan Abdul Samad Building, the National Mosque and the Islamic Arts Museum, then walk Petaling Street. End at KLCC Park for the Petronas Twin Towers after dark.
Signal On a coach, your phone switches to Maxis, CelcomDigi or U Mobile around the Causeway. Strong 4G and 5G in central KL.
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Day 4 Kuala Lumpur
Batu Caves and Bukit Bintang
Take the KTM Komuter to Batu Caves early and climb the 272 steps to the Temple Cave before the heat builds. Back in the city, go up the Petronas Towers skybridge or KL Tower for the view, then spend the evening on Jalan Alor's food street in Bukit Bintang.
Signal Good at the Batu Caves entrance, weaker deep inside the caverns; excellent in Bukit Bintang.
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Day 5 George Town
Penang: George Town heritage
KTM ETS from KL Sentral to Butterworth, about 4 hours, then the ferry to George Town, about 15 minutes.
Take the ETS train north to Butterworth and the ferry across to George Town. Walk the UNESCO core in the afternoon: Armenian Street murals, the Khoo Kongsi clan house, the Chew Jetty and the Cheong Fatt Tze Blue Mansion. Eat at a hawker centre such as Gurney Drive in the evening.
Signal Good 4G along the main rail line with short gaps; strong in George Town.
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Day 6 George Town
Penang Hill and Kek Lok Si
Ride the funicular up Penang Hill for the view over the strait, then visit Kek Lok Si temple and its pagoda in Air Itam. In the afternoon, visit Fort Cornwallis and walk the Esplanade, or take a bus to the beach at Batu Ferringhi.
Signal Good on the hill and at Kek Lok Si; brief drops in the funicular's tunnel section.
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Day 7 Langkawi
Langkawi: the cable car and Kilim
Flight Penang to Langkawi, about 30 minutes.
Fly to Langkawi in the morning. Ride the SkyCab cable car up Gunung Mat Cinchang to the SkyBridge, then in the afternoon take a boat trip through the mangroves of the Kilim Karst Geoforest Park. Book tomorrow's speedboat to Koh Lipe and complete your Thailand Digital Arrival Card.
Signal Good across Kuah and Pantai Cenang and at the SkyBridge; mangrove channels in Kilim are patchy.
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Day 8 Koh Lipe
Across the border to Koh Lipe
Speedboat from Telaga or Kuah to Koh Lipe, about 1 to 1.5 hours, in high season only.
Take the morning speedboat from Langkawi to Koh Lipe, clearing Thai immigration on arrival. Spend the afternoon on Sunrise Beach and walk Walking Street, then watch the sunset from Pattaya Beach or the Sunset Beach viewpoint on the west side.
Signal Malaysian signal fades in open water; your phone picks up TrueMove H or DTAC as you approach Koh Lipe. Good 4G on the main beaches.
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Day 9 Koh Lipe
Koh Lipe: snorkelling in Tarutao National Park
Join a longtail snorkelling trip to the islands of the Tarutao marine park, such as Koh Adang, Koh Rawi and Koh Hin Ngam with its striped stones. In the afternoon, hike up to the Chado Cliff viewpoint on Koh Adang if your trip allows. Leave the stones where you find them; it is park law.
Signal Good on Koh Lipe itself; Koh Adang and the outer islands have weak or no signal, so let someone know your plans.
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Day 10 Koh Lanta
North to Koh Lanta
Speedboat from Koh Lipe to Koh Lanta, about 3 to 4 hours with stops at Koh Bulone, Koh Muk and Koh Ngai, high season only.
Take the island-hopping speedboat north to Koh Lanta. In the afternoon, settle on one of the west-coast beaches, Long Beach or Kantiang Bay, and catch the sunset. If you arrive early enough, visit Lanta Old Town on the east coast with its wooden stilt houses.
Signal Expect long offline stretches between islands. Good 4G on Koh Lanta's west coast.
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Day 11 Koh Lanta
Koh Lanta: Mu Ko Lanta National Park
Ride to the southern tip for Mu Ko Lanta National Park, with its lighthouse headland and short nature trail. In the afternoon, either join a boat trip to Koh Rok or the Four Islands for snorkelling, or rest on a quieter beach such as Bamboo Bay.
Signal Good on the main west-coast beaches; weaker around the national park headland and none on the open-sea snorkelling trips.
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Day 12 Bangkok
Krabi and the flight to Bangkok
Minivan from Koh Lanta to Krabi Airport, about 2 to 2.5 hours, then a flight to Bangkok, about 1 hour 20 minutes.
Take the minivan and car ferries to Krabi. If your flight allows, stop at Ao Nang to see the limestone cliffs, then fly to Bangkok. In the evening, head to the riverside at Asiatique or a night market such as Jodd Fairs.
Signal Good on the mainland roads; full 4G and 5G in Bangkok.
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Day 13 Bangkok
Bangkok: the Grand Palace and Wat Pho
Be at the Grand Palace and Wat Phra Kaew when they open, dressed with shoulders and knees covered. Walk to Wat Pho and its reclining Buddha, then take the cross-river ferry to Wat Arun. In the evening, explore Chinatown along Yaowarat Road.
Signal Strong 5G on TrueMove H or DTAC throughout Rattanakosin and Chinatown, and on the river ferries.
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Day 14 Bangkok
Bangkok: markets and canals
If it is a weekend, go to Chatuchak Weekend Market by BTS or MRT early; otherwise, take a longtail boat through the Thonburi canals. In the afternoon, visit Jim Thompson House, then go up to a rooftop or walk through Lumphini Park before heading to Suvarnabhumi Airport.
Signal Excellent across Bangkok and on the Airport Rail Link.
Staying connected on this route
- Complete the Malaysia Digital Arrival Card and the Thailand Digital Arrival Card online before each crossing, and save the confirmations offline.
- Download offline maps and your boat tickets before leaving Langkawi and Koh Lipe; open-sea legs have no land signal.
- Avoid the Hat Yai to Padang Besar overland route: the UK Foreign Office advises against all but essential travel to parts of Thailand's deep south, including that railway.
Itinerary sources · 6
- gov.uk GOV.UK: Thailand warnings and insurance
- en.wikivoyage.org Wikivoyage: Ko Lipe
- malaysia.travel Tourism Malaysia
- tourismthailand.org Tourism Authority of Thailand
- ktmb.com.my KTM Berhad: ETS intercity trains
- whc.unesco.org UNESCO World Heritage: Melaka and George Town, Historic Cities of the Straits of Malacca
Information and verification
Each block below says what was checked and when. Anything we cannot date, we do not claim.
- Prices and plans
- Every price and allowance on this page is read from the live catalog, not typed in.
Singapore & Malaysia & Thailand eSIM prices
| Data | Price | Per day |
|---|---|---|
| Unlimited | $10.99 | $3.66/day |
| Data | Price | Per day |
|---|---|---|
| Unlimited | $16.00 | $3.20/day |
| Data | Price | Per day |
|---|---|---|
| Unlimited | $29.99 | $3.00/day |
| Data | Price | Per day |
|---|---|---|
| 3 GBBest value | $5.99 | $0.20/day |
| 5 GB | $8.00 | $0.27/day |
| 10 GB | $13.99 | $0.47/day |
| 20 GB | $21.99 | $0.73/day |
| Unlimited | $81.99 | $2.73/day |
| Data | Price | Per day |
|---|---|---|
| Unlimited | $169.99 | $2.83/day |
| Data | Price | Per day |
|---|---|---|
| Unlimited | $249.99 | $2.78/day |
| Data | Price | Per day |
|---|---|---|
| Unlimited | $489.99 | $2.72/day |
Destinations
