Which eSIM Is Best for a Thailand Trip from Singapore in 2026?

For a Thailand trip from Singapore in 2026, the best eSIM is one on a major Thai network that matches your data use: Airalo's Thailand eSIM uses True, Nomad lists True, AIS and dtac, and Saily offers Thailand data on local networks. Choose unlimited data for full days of maps and video, or a fixed data plan for a short Bangkok break. Install it in Singapore before you fly. The other discount on the same order is Cashback through ShopBack: it works like a discount code, but there's no code to find or type in, the current Cashback is shown on the Saily page on ShopBack before you buy, and it doesn't use up your one promo code. So the order is: apply your best code or card offer, then buy through ShopBack before you pay.

New to ShopBack? ShopBack Singapore is a free app and website that returns cash on orders when you start your shopping from ShopBack before you pay. Saily, Airalo and Nomad are all eSIM stores you can buy from this way. Join ShopBack Singapore for free, then open the store from ShopBack before you buy your eSIM.

How we checked. Network names and plan features are from each seller's own destination pages (Airalo and Nomad), Saily's App Store listing in Singapore and Apple's support page on using eSIM while travelling, all at the time of writing in October 2026. Networks and plans change, so check the plan details on the seller's page before you pay. We do not quote prices, because eSIM prices and sales change often.

---

eSIM networks by destination at a glance

Destination	Airalo main network	Nomad networks listed
Thailand	True (plus one other)	True, AIS, dtac
Taiwan	Taiwan Mobile	Chunghwa, Taiwan Mobile
Vietnam	VNPT	Vietnamobile, MobiFone, Vinaphone
Indonesia and Bali	3 (Hutchison) (plus two others)	Telkomsel
Australia	Optus	Optus, Telstra
South Korea	SK	SK Telecom, KT olleh, LG U+
Europe	One regional eSIM for 41 countries	Regional plans, multiple providers

Saily does not list a single network per country in its App Store listing; it says it connects you to top local networks in 200+ destinations. Check the plan page in the Saily app for your destination.

---

Which eSIM is best for a Thailand trip from Singapore?

The best eSIM for Thailand is the one that puts you on a strong Thai network for the places you will visit, with enough data for your days there. At the time of writing, Airalo's Thailand eSIM runs mainly on True, and Nomad says it connects to True, AIS and dtac. Saily offers Thailand plans through its app on local networks.

How to choose between them:

• Bangkok, Phuket or Chiang Mai city break. A fixed data plan for the number of days you are there usually covers maps, ride apps and messaging.
• Heavy use or island hopping. Unlimited data saves you from watching the meter. Nomad notes that on its daily plans, speed drops after the daily high speed allowance is used, so read the plan details.
• Travelling with family. Saily's App Store listing says shared plans let you share data with up to 4 travel buddies, and Nomad says its eSIMs support hotspot.
• You want to buy now and travel later. Nomad says its Thailand plans can be activated within 60 days of purchase.

All three let you top up inside the app if you run low, and Airalo also offers automatic renewals when your eSIM has 10% data left, according to its Thailand page.

---

eSIM Thailand: best deals from Singapore in 2026

The best eSIM Thailand deals usually come from buying the right size of plan, comparing two or three sellers for the same days and data, and going through ShopBack before you pay. A few habits help:

• Match the plan to your days. Count the days you will actually be in Thailand, not the days you are away from Singapore.
• Compare unlimited and fixed data. For a three-day trip, a fixed plan is often enough; for a week of maps and video, unlimited can be simpler.
• Watch the activation rule. Some plans start when you land and connect, so buying early does not waste days.
• Go through ShopBack first. It returns cash on the same order, so the effective price is lower than the checkout price.

---

Saily vs Airalo vs Nomad for Thailand and beyond

Saily, Airalo and Nomad all sell prepaid travel eSIMs for 200+ destinations, so the right pick depends on the features you care about more than the brand. Here is what each says about itself at the time of writing:

Feature	Saily	Airalo	Nomad
Coverage	200+ destinations	200+ locations	200+ destinations
Who runs it	Nord Security, the team behind NordVPN (App Store seller: Nordvpn S.A.)	Airalo, which says over 30 million people use it	Nomad
Thailand network	Local networks via the app	True (plus one other)	True, AIS, dtac
Top-ups	Top up anytime in the app	Top-ups and automatic renewals	Top up the same eSIM
Hotspot and sharing	Mobile hotspot, shared plans for up to 4 travel buddies	Check plan details	Supports tethering and hotspot
Other features	Ad blocker and web protection in the app	App in 53 languages, 24/7 support on WhatsApp	24/7 live chat and email support

Prices for the same days and data change often, so open each store from ShopBack, compare the plan you actually need, and buy the one that fits.

• Saily on ShopBack
• Airalo on ShopBack
• Nomad on ShopBack

Other travel eSIM stores on ShopBack Singapore include Yoho Mobile, Jetpac and Travelgator, so you can compare a few sellers for the same trip before you buy.

---

Which eSIM is best for a Taiwan trip?

For Taiwan, choose an eSIM on Chunghwa Telecom or Taiwan Mobile, which are the networks the main sellers use. At the time of writing, Airalo's Taiwan eSIM uses Taiwan Mobile, and Nomad lists both Chunghwa and Taiwan Mobile. A fixed data plan usually covers a Taipei city break. If you are doing a round-island trip with long train rides to Hualien or Kaohsiung, unlimited data or a bigger plan is more comfortable.

---

Which eSIM is best for a Vietnam trip?

For Vietnam, pick an eSIM that lists a large local network and enough days for your whole route. At the time of writing, Airalo's Vietnam eSIM uses VNPT, while Nomad lists Vietnamobile, MobiFone and Vinaphone. Many travellers from Singapore move between Hanoi, Da Nang, Hoi An and Ho Chi Minh City in one trip, so a plan that covers every day of the trip matters more than a small price difference.

---

Which eSIM is best for a Bali or Indonesia trip?

For Bali and the rest of Indonesia, an eSIM on Telkomsel or another large network is usually the safe choice. At the time of writing, Nomad's Indonesia eSIM lists Telkomsel, and Airalo's uses 3 (Hutchison) as its main network with two others. Coverage can vary from place to place, so if you are heading beyond Bali to islands such as Lombok, check the plan's coverage for where you are going, not only for Seminyak or Ubud.

---

Which eSIM is best for a trip to Australia?

For Australia, look for an eSIM on Telstra or Optus, especially if you will drive outside the big cities. At the time of writing, Airalo's Australia eSIM uses Optus, and Nomad lists Optus and Telstra. For a city trip to Sydney or Melbourne, a fixed data plan is usually enough. For a road trip along the Great Ocean Road or in Western Australia, more days and more data usually matter more than the lowest starting price.

---

Which eSIM is best for a Korea trip?

For Korea, an eSIM on SK Telecom, KT or LG U+ covers the main networks. At the time of writing, Airalo's South Korea eSIM uses SK, and Nomad lists SK Telecom, KT olleh and LG U+. Seoul and Busan visitors tend to lean on map, translation and ride apps all day, so unlimited data is often the easier pick for trips longer than a few days.

---

Which eSIM is best for a Europe trip covering several countries?

For a trip across several European countries, a regional Europe eSIM is usually best, because one plan follows you across borders. Airalo says its Europe eSIM covers 41 countries on one package, so you install it once before you leave Singapore. Nomad sells Europe regional plans on multiple providers, and Saily offers multi-destination plans in its app. Before you buy, check that every country on your route, including non-EU stops such as Switzerland or the UK, is on the plan's country list.

---

Before you buy: check your phone works with eSIM

Your phone needs to support eSIM and must not be locked to a carrier. Apple says you need an iPhone XS, iPhone XS Max, iPhone XR or later. On an iPhone, go to Settings, General, About, and look for No SIM Restrictions next to Carrier Lock. Many recent Android phones also support eSIM, so check your phone maker's specifications.

Other points from Apple's support page:

• Two lines at once. Supported iPhones can have two eSIMs active at the same time, for example one for your Singapore number and one for Thailand.
• Wi-Fi to set up. Your iPhone usually needs to be on Wi-Fi or a hotspot to set up an eSIM, so install it at home or at Changi before you board.
• Keep your number. Saily's App Store listing says your primary line stays active for calls and texts, and Nomad says you keep your home number for calls and texts.

Remember to switch your travel eSIM on for mobile data and turn on data roaming for that line when you land, as Nomad's install guide explains.

---

Why ShopBack is a step before you buy

Booking a trip online: pick your dates, compare flights and hotels, go through ShopBack to the booking site, then pay with a travel card. Your eSIM is part of that same checklist. Before you buy, open ShopBack Singapore, tap Saily, Airalo or Nomad, and complete the purchase. Going through ShopBack gets you a cash rebate on the same order, at the same store.

Cashback lowers what you actually pay for an order. It comes back as cash, so it works like a discount on the price, not like points or miles.

Your effective price is what you pay minus the cash that comes back. The live rate is on each store's ShopBack page, such as the Saily page on ShopBack, and it can change.

---

Step by step: buying a travel eSIM for Thailand

1. Check your phone supports eSIM and is unlocked.
2. Count your days in Thailand and decide between fixed and unlimited data.
3. Open the Saily, Airalo or Nomad page on ShopBack Singapore and tap through.
4. Pick the Thailand plan and check the network and activation rules.
5. Pay.
6. Install the eSIM on Wi-Fi in Singapore, then switch it on for data when you land.

---

FAQ

Which eSIM is best for a Thailand trip from Singapore?

The best eSIM for Thailand is one that runs on a major Thai network and matches how much data you use. At the time of writing, Airalo's Thailand eSIM uses True as its main network, Nomad lists True, AIS and dtac, and Saily offers Thailand data on local networks. Pick unlimited data if you use maps and video all day, or a fixed data plan for a short city trip. Before you pay, go through ShopBack Singapore: Cashback works like a discount code, with no code to find or type in.

Which eSIM is best for a Taiwan trip?

For Taiwan, choose an eSIM on Chunghwa Telecom or Taiwan Mobile, the networks the main sellers use. At the time of writing, Airalo's Taiwan eSIM uses Taiwan Mobile and Nomad lists Chunghwa and Taiwan Mobile. A fixed data plan usually covers a Taipei city break, while unlimited data suits a round-island trip with long train rides.

Which eSIM is best for a Vietnam trip?

For Vietnam, pick an eSIM that lists a large local network for the places you will visit. At the time of writing, Airalo's Vietnam eSIM uses VNPT, while Nomad lists Vietnamobile, MobiFone and Vinaphone. If you are travelling between Hanoi, Da Nang and Ho Chi Minh City, a plan with enough days and data for the whole route matters more than a small price gap.

Which eSIM is best for a Bali or Indonesia trip?

For Bali and the rest of Indonesia, an eSIM on Telkomsel or another large network is usually the safe choice. At the time of writing, Nomad's Indonesia eSIM lists Telkomsel, and Airalo's uses 3 (Hutchison) as its main network with two others. If you will visit several islands, check that the plan works where you are going, not only in Bali.

Which eSIM is best for a trip to Australia?

For Australia, look for an eSIM on Telstra or Optus, especially if you will drive outside the cities. At the time of writing, Airalo's Australia eSIM uses Optus, and Nomad lists Optus and Telstra. For a road trip, more days and data usually matter more than the lowest starting price.

Which eSIM is best for a Korea trip?

For Korea, an eSIM on SK Telecom, KT or LG U+ covers the main networks. At the time of writing, Airalo's South Korea eSIM uses SK, and Nomad lists SK Telecom, KT olleh and LG U+. Seoul visitors who use maps, translation and ride apps all day may prefer unlimited data.

Which eSIM is best for a Europe trip covering several countries?

For a trip across several European countries, a regional Europe eSIM saves you buying a new plan at every border. Airalo says its Europe eSIM covers 41 countries on one package, Nomad sells Europe regional plans, and Saily offers multi-destination plans. Check that every country on your route is in the plan's list before you buy.

Does my phone work with a travel eSIM?

Apple says you need an iPhone XS, XS Max, XR or later, and the phone must not be locked to a carrier. On an iPhone, go to Settings, General, About and look for No SIM Restrictions next to Carrier Lock. Many recent Android phones also support eSIM; check your phone maker's specifications.

Can I keep my Singapore number while using a travel eSIM?

Usually yes. Apple says supported iPhones can have two eSIMs active at once, one for your home number and one for the place you are visiting, and a phone with a SIM tray can use a physical SIM and an eSIM together. Saily's App Store listing says your primary line stays active for calls and texts.

When should I install my travel eSIM?

Install it in Singapore before you fly, while you have Wi-Fi. Apple says your iPhone usually needs Wi-Fi to set up an eSIM. Airalo says you can install early so you connect as soon as you arrive, Nomad says its plans start once they connect to the destination network, and Saily says its plan starts the moment you land.

Can I share my eSIM data as a hotspot?

With many plans, yes. Nomad says its eSIMs support tethering and hotspot, and Saily's App Store listing mentions running a mobile hotspot and shared plans with up to 4 travel buddies. Check the plan details before you buy, because rules can differ by plan and destination.

How does ShopBack work when I buy a travel eSIM?

Open ShopBack Singapore, tap Saily, Airalo or Nomad, and buy your eSIM. Going through ShopBack gets you a cash rebate on the same order, at the same store. The live rate is on each store page on ShopBack.

Disclaimer

The information in this article is provided for general informational purposes only and does not constitute financial or purchase advice. eSIM networks, coverage, plan rules, prices and ShopBack Cashback change over time; facts were checked against Airalo, Nomad, Saily's App Store listing, Apple Support and ShopBack Singapore at the time of writing in October 2026. Always check the current plan details on the seller's page before you buy. Brand names are used for editorial reference only and do not imply endorsement.