How quickly can I start using the eSIM after purchase?

You'll receive the QR code within minutes of purchase. Simply scan it on your eSIM-compatible device to activate immediately upon arrival in Chiang Mai. Activation takes just a few minutes.

Will this eSIM work with my smartphone?

Only if your device supports eSIM technology and is not carrier-locked. Most devices from China and Hong Kong don't support eSIM. Check your device's specifications online or contact your carrier before purchasing.

Can I use this eSIM to make calls or send SMS?

No, this plan provides data-only connectivity. Voice calls and SMS are not supported. Use internet-based services like WhatsApp, Viber, or Skype for communication.

Can I share this data with others using mobile hotspot?

Yes, mobile hotspot is fully supported. You can share your data connection with travel companions, though your total 20GB allowance will be divided among all connected devices.

What happens if I don't use all 20GB in 30 days?

Unused data expires after 30 days from activation. This is a prepaid plan with no carryover, so plan your usage accordingly.

Can I get a refund if the eSIM doesn't work with my device?

No refunds are available, including cases of device incompatibility or changed travel plans. Verify eSIM compatibility before purchase to avoid this issue.

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Chiang Mai Data eSIM 500MB per Day to 20GB - 30Days

Chiang Mai, Thailand

Self-Drive Tours

Instant confirmationSecure checkoutNo hidden fees

About this activity

Stay connected throughout your 30-day Chiang Mai trip with an eSIM offering 500MB daily data (up to 20GB total). Instant activation via QR code on compatible devices—no physical SIM card needed, no contracts.

• Receive eSIM QR Code within minutes.
• Simply scan the designated QR Code to set up the eSIM.
• Validity Date: eSIM plan starts upon installation.
• Plan Type: Mobile Data only. Voice and SMS not supported.
• Mobile Hotspot: Supported.
• Billing: One-time prepaid package with no auto-renewals or contracts.
• Compatibility: Works with eSIM-compatible devices that are not carrier locked. Please be aware that most devices bought in China and Hong Kong do not support eSIM. It’s advisable to check online to see if your device is eSIM-compatible, or contact your service provider.
• Do ensure your travel plans are confirmed. No refunds or cancellations are given due to eSIM compatibility issues or changes in the itinerary.
• Support: Please respond to the email from the Viator Supplier for any assistance or queries.
• Expiration: Start using the eSIM within one-month of purchase.
• *Connections to major local mobile network at 4G LTE or 5G speeds, depending on availability.

Highlights

✓500MB per day data allowance with 20GB total capacity over 30 days
✓QR code activation within minutes; no physical SIM swap required
✓4G LTE and 5G speeds where available via major Thai networks
✓Mobile hotspot enabled for sharing connectivity with travel companions
✓One-time prepaid pricing from €14 with no auto-renewal or hidden fees

Insider tips

★Verify eSIM compatibility before purchase—devices bought in China and Hong Kong typically don't support eSIM technology
★Install the eSIM immediately upon arrival or within one month of purchase to avoid expiration of your voucher
★Enable airplane mode, then turn on cellular to ensure seamless activation of your new eSIM profile
★Use the mobile hotspot feature to keep travel companions connected without each purchasing separate plans

Good to know

•eSIM-compatible device required; carrier-locked phones may not work—check your device compatibility online beforehand
•Data only plan: voice calls and SMS not supported; use WhatsApp, Viber, or similar for messaging
•Plan activates upon installation, not upon purchase—start date aligns with your actual arrival
•No refunds available due to device incompatibility or itinerary changes; confirm travel dates before purchase
•Contact supplier via email (Viator) for technical support or activation issues

Who it's for

Solo travelers and backpackers needing affordable, hassle-free mobile connectivityDigital nomads and remote workers requiring reliable data for month-long staysFamilies traveling together who want to share connectivity via hotspotSelf-drive travelers mapping routes and accessing real-time navigation apps

Best time to visit

Purchase and activate your eSIM immediately upon arrival in Chiang Mai to maximize your 30-day validity window. Data speeds are generally consistent year-round, though network congestion may be higher during peak tourist season (November–February).