Best eSIM for Thailand from India – Prepare Your Trips from India

Planning a trip to Thailand from India? With over 2.1 million Indians visiting Thailand in 2024 alone, making India Thailand’s third-largest source market [Skift, Jan 2025], staying connected has never been more important. Whether you’re navigating Bangkok’s streets on Google Maps, sharing reels from Phuket’s beaches, or booking Grab rides in Chiang Mai, you need reliable, affordable data the moment you land.

The default choice for most Indians is to activate a Jio or Airtel international roaming pack. But as we’ll show below, those packs can cost you 3–4x more than a dedicated Thailand eSIM – and come with frustrating data caps on top. In this guide, we break down the real numbers, show you how to get set up before your flight, and give you a few India-specific tips to stay connected for less.

Why use a Thailand eSIM instead of Jio or Airtel roaming?

A Thailand eSIM is a digital SIM card you install on your phone before departure. The moment your plane lands in Thailand, it connects automatically to local 5G networks (AIS or TrueMove H) — no airport kiosk queue, no physical SIM to swap, no surprise roaming bill waiting for you when you get home.

For Indian travellers specifically, here’s why it makes sense:

• Keep your Indian number active: Most Indian phones are dual-SIM. Run your Jio/Airtel SIM alongside the eSIM – your Indian number stays reachable for calls, WhatsApp, and bank OTPs without paying roaming rates.
• Full-speed 5G data: Unlike Jio’s throttled roaming packs (250 MB/day at full speed, then dropped to 64 kbps), a Thailand eSIM gives you 35 GB or unlimited high-speed data throughout your trip.
• No paperwork: Buy online, receive a QR code by email within minutes. No ID verification, no store visit.
• Hotspot works: Share your data with other devices — perfect for travelling with family or when you need your laptop connected.
• 5G coverage across Thailand: AIS and TrueMove H cover Bangkok, Phuket, Koh Samui, Chiang Mai, Pattaya, Krabi and most tourist areas at 4G/5G speeds.

eSIM vs Jio vs Airtel roaming — price comparison for Thailand

Let’s get to the numbers. Here’s exactly what Jio and Airtel charge for a 7-day trip to Thailand – compared to a ThailandeSIM:

* Jio’s 7-day roaming pack provides only 250 MB/day at full speed. After that, data is throttled to 64 kbps — barely usable for maps or messaging. USD/INR rate: 1 USD ≈ 84 INR, June 2026.

The comparison speaks for itself. Jio’s 7-day Thailand pack costs ₹2,875 — nearly 4x the price of a ThailandeSIM – and limits you to just 250 MB of full-speed data per day. That’s roughly enough for 30 minutes of Google Maps navigation. After that, your connection drops to 64 kbps — slower than 2G.

Airtel is cheaper for short 5-day trips (₹798), but 2 GB for 5 days is still tight for heavy users. The ThailandeSIM’s 35 GB for ₹748 gives you 17x more data at a lower price than Airtel’s 5-day pack.

The one thing Jio and Airtel roaming give you that a Thailand eSIM alone does not: your Indian number stays fully active for outgoing calls. But here’s the good news — virtually all modern Indian smartphones (and most Android phones generally) support dual SIM. You can keep your Jio or Airtel SIM in slot 1 on flight mode, use WiFi Calling (VoLTE) for free calls to India, and run the Thailand eSIM as your data line. Best of both worlds, for less.

Read more: Thailand eSIM vs Roaming: Which one is better for tourists

How to get a Thailand eSIM from India – step by step

The whole process takes under 5 minutes and can be done from your home before the flight:

1. Choose your plan: The 35 GB / 7-day plan at USD $8.90 covers most standard trips. For 2-week holidays or heavy users, the Unlimited / 15-day plan at USD $24.90 is worth it. Both are available at ThailandeSIM.com.
2. Buy online: Pay via card or UPI (USD pricing — check your bank’s forex rate). You’ll receive a QR code by email within 5–10 minutes.
3. Install the eSIM on your phone:
   • iPhone (iOS 16+): Settings → Mobile Data → Add eSIM → Use QR Code → Scan the code from your email.
   • Samsung Galaxy (S21+, Z Fold, Z Flip): Settings → Connections → SIM Manager → Add eSIM.
   • OnePlus / Pixel / Motorola: Settings → Network & Internet → SIMs → Add eSIM.
4. Activate on landing: When you land in Bangkok or Suvarnabhumi Airport, go to Settings and enable Data Roaming for your Thailand eSIM. It connects to TrueMove H or DTAC instantly.

⚠ Important: You must be physically inside Thailand when you activate the eSIM. Installing it before departure is fine — but do not activate it until you arrive. Activating from India will cancel the plan.

Tips for Indian travellers using a Thailand eSIM

• Use dual SIM to keep your Indian number active: Set your Jio/Airtel SIM to flight mode — it will still receive calls via WiFi Calling (if enabled on your plan) and you’ll get bank OTPs over your home WiFi. No roaming charges apply.
• Set Thailand eSIM as default data line: On Android: Settings → SIM Manager → Mobile Data → select the eSIM. On iPhone: Settings → Mobile Data → Default Line.
• Activate Jio WiFi Calling before you leave India: Jio supports international WiFi calling — turn it on before your flight so you can take calls on your Indian number using hotel/cafe WiFi at no extra cost.
• Consider a minimum Jio/Airtel pack for OTPs only: If your bank’s OTP system doesn’t work over WiFi, activate the cheapest Airtel 1-day pack (₹648) just for the first day to receive your first SMS. After that, switch fully to the eSIM.
• Coverage in Thailand is strong: AIS and TrueMove H cover all major destinations — Bangkok, Phuket, Pattaya, Krabi, Koh Samui, Chiang Mai. Even the Phi Phi Islands have reliable 4G/5G.

Frequently asked questions

Ready to travel to Thailand without the bill shock?

Get your Thailand eSIM before you leave India – instant delivery to your inbox, connects automatically when you land, and costs a fraction of what Jio or Airtel charge for the same trip.