eSIM Thailand
Best eSIM For Chiang Mai: 10 Providers Ranked
Feb
Compare the best eSIM options, prepaid eSIM data plans, and providers like eSIM4, Saily, and Airalo for fast and reliable internet access in Chiang Mai. Whether you’re working from a cafe in Nimman or exploring the temples of the Old City, we help you find the best eSIM for Chiang Mai.
Written by Peter Moore – eSIM Content Writer
Our Verdict: eSIM4
eSIM4 stands out as the best eSIM for Chiang Mai. With plans starting from an incredibly low $2.98, it offers premium coverage on the AIS network, Thailand’s leading mobile provider. Whether you need a simple 10GB data allowance for a short holiday in the Old City or unlimited data for a digital nomad stint on Nimman Road, eSIM4 delivers reliable 5G mobile data without the hassle of swapping physical SIM cards. It is perfect if this is your first embedded SIM purchase.
Why We Chose eSIM4
- Unbeatable Value: Plans start at just $2.98 for 1GB.
- Top Connectivity: It offers peace of mind knowing you’re connected to Advanced Info Service (AIS), the best mobile network in Southeast Asia.
- Instant Setup: Install an eSIM and auto-connect on arrival at CNX with no store visits required.
- Full Features: 24/7 support and optional app for calls and SMS.
Quick Comparison: Best eSIMs for Chiang Mai
We compared the top eSIM providers offering service in Thailand, including Saily, Airalo, and Nomad, to help you find the perfect match for your northern adventure. Avoid expensive roaming fees with our top picks for a reliable eSIM and the best eSIMs for Chiang Mai available. Compare these data packages to find the right fit.
| Rank | Provider | Rating | Starting Price | Best For |
|---|---|---|---|---|
| 1 | ⭐ eSIM4 | 4.9/5 | $2.98 | Best Overall Value |
| 2 | Saily | 4.6/5 | $2.84 | Security Features |
| 3 | Airalo | 4.5/5 | $4.00 | Frequent Travelers |
| 4 | Nomad | 4.5/5 | $5.00 | Business Trips |
| 5 | Jetpac | 4.4/5 | $4.00 | Airport Perks |
| 6 | aloSIM | 4.3/5 | $3.50 | International Number |
| 7 | Roamless | 4.2/5 | $2.95 | Pay-as-you-go |
| 8 | GigSky | 4.2/5 | $4.99 | Cruise Travelers |
| 9 | Holafly | 4.0/5 | $3.90 | Unlimited Data |
| 10 | Instabridge | 3.9/5 | $1.00 | Budget Travelers |
Choosing the Right eSIM Plans
Chiang Mai offers incredible diversity, from the trendy cafes of Nimman Road to the ancient temples of the Old City. Your amount of data usage will depend on your itinerary. Before you buy, consider these factors to ensure uninterrupted connectivity.
| Factor | Details | Why It Matters |
|---|---|---|
| Network Quality | Look for providers using the AIS or DTAC network. | AIS offers the best coverage in Northern Thailand, crucial for navigating the winding roads to Doi Suthep or visiting Elephant Nature Park. |
| Data Needs | Determine if you need a fixed allowance or unlimited data. | Using Google Maps to navigate the moat, Grab rides, and video calls consume data quickly. Unlimited plans are great for peace of mind. Buying a physical SIM card is a hassle you can avoid. |
| Trip Duration | Match the plan validity (e.g., 7, 15, or 30 days) to your stay. | Buying a 30-day plan for a 5-day trip wastes money. Flexible durations help you save, especially for short visa runs. If you need a digital SIM for a longer stay, check 30-day options. |
| Hotspot | Check if tethering is allowed on unlimited plans. | Essential if you need to create a Wi-Fi hotspot to connect laptops at a cafe or share internet with travel companions. |
Top eSIM Providers for Chiang Mai: Reviews
We reviewed the leading eSIM providers for Chiang Mai based on price, coverage, and ease of use. Say goodbye to roaming fees and expensive airport SIM cards. Here are the detailed results of our analysis.
eSIM4
Best Overall Value
eSIM4 takes the top spot as the premier eSIM for Thailand and choice for Chiang Mai travelers today. Trusted by thousands of global travelers exploring Southeast Asia, it combines premium connectivity with unbeatable prices. By partnering with Advanced Info Service (AIS), the country’s top mobile network, eSIM4 ensures you have blazing fast 5G speeds whether you are at the Sunday Walking Street market or hiking up a mountain trail. You can easily buy this eSIM online.
Coverage
Users benefit from the extensive reach of the AIS network, known for having the best coverage in Northern Thailand. This ensures stable connections not just in the city center, but also at Doi Suthep and surrounding waterfalls.
Data Plans
Flexibility is key with eSIM4. You can choose from budget-friendly 1GB options for light use, or robust 20GB plans for longer digital nomad stays. For heavy data consumers, unlimited data packages are available.
Activation Process
The process is entirely digital. After purchase, you receive a QR code via email instantly. Scan it to install, and your plan will auto-connect the moment you arrive in Thailand.
Price
With discounted rates currently available, eSIM4 offers exceptional value, with plans starting as low as $2.98.
eSIM4 Pricing Plans
| Data / Type | Duration | Price | Savings |
|---|---|---|---|
| 1 GB | 7 Days | $2.98 | SAVE 58% |
| 2 GB | 15 Days | $3.98 | SAVE 60% |
| 3 GB | 30 Days | $4.98 | SAVE 54% |
| 5 GB | 30 Days | $6.98 | SAVE 51% |
| 10 GB | 30 Days | $9.98 | SAVE 50% |
| 20 GB | 30 Days | $16.98 | SAVE 48% |
| Unlimited | 3 Days | $9.98 | SAVE 52% |
| Unlimited | 15 Days | $37.98 | SAVE 46% |
| Unlimited | 30 Days | $47.98 | SAVE 46% |
Pros & Cons
Pros
- Best price-to-data ratio
- Premium AIS 5G/4G network
- Instant QR delivery
- Auto-connects on arrival
Cons
- Device must be unlocked
- Voice calls require app usage
Saily
Security Features
Created by the NordVPN team, Saily is a fantastic choice if you’re worried about digital security while hopping between coffee shop Wi-Fi networks in Nimman. It offers competitive pricing with plans starting at just $2.84. It utilizes major networks (4G/5G) to keep you connected, making it a reliable eSIM plan for security-conscious users who want a safe trip to Chiang Mai.
Coverage
Saily connects to major networks, providing solid coverage throughout Chiang Mai city and most tourist hotspots. The automatic network switching ensures you stay connected even if one signal drops.
Data Plans
Saily provides data-only plans ranging from 1GB for short trips to 20GB for longer vacations. Note that there are no truly unlimited plans; all options have fixed data caps, which is great for budget control.
Activation Process
The activation is streamlined through their app. Simply download the Saily app, select your Thailand plan, and follow the prompts to install the eSIM profile directly to your phone settings.
Price
Pricing is very competitive, with the 1GB plan priced at $2.84.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 1 GB | 7 Days | $2.84 |
| 3 GB | 30 Days | $5.69 |
| 5 GB | 30 Days | $7.59 |
| 10 GB | 30 Days | $10.44 |
| 20 GB | 30 Days | $18.99 |
Pros & Cons
Pros
- Backed by Nord Security
- User-friendly mobile app
- Flexible duration options
Cons
- Data only, no native calls
- No unlimited options
Airalo
Frequent Travelers
Airalo is a favorite among frequent flyers and connects reliably to the AIS network in Chiang Mai. If you already have the app from previous trips, it’s a convenient option. They offer high-speed AIS 5G access, ensuring smooth video calls and fast browsing. You can manage your eSIMs and handle top-ups easily.
Coverage
With AIS as a partner network, Airalo offers broad coverage. Users can expect strong signals in Chiang Mai’s Old City and decent connectivity in most nearby nature spots.
Data Plans
Airalo offers a variety of plans, including regional options if you’re traveling beyond Thailand. Their specific ‘dtac’ plans even come with a local number.
Activation Process
Purchase your plan through the Airalo app or website. You can install the eSIM using a QR code or the ‘Direct Install’ method within the app for a seamless setup experience.
Price
Plans start at $4.00 for 1GB, making them slightly pricier than eSIM4 but still affordable.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 1 GB | 3 Days | $4.00 |
| 3 GB | 7 Days | $6.00 |
| 5 GB | 15 Days | $7.50 |
| 10 GB | 30 Days | $11.00 |
| 20 GB | 30 Days | $18.00 |
Pros & Cons
Pros
- High-speed AIS 5G network
- Excellent regional plans
- Easy installation flow
Cons
- ID verification sometimes required
- Slightly higher entry price
Nomad
Business Trips
Nomad stands out by offering access to three different networks (AIS, DTAC, and True). This redundancy is excellent for business travelers who can’t afford to be offline. If one network has a dead spot in your hotel, you can often switch to another, ensuring reliable connectivity.
Coverage
Access to 3 networks (AIS/DTAC/True) ensures you have the best possible chance of getting a signal wherever you are in Chiang Mai province. It allows for manual switching if one network is congested.
Data Plans
Nomad offers both fixed data and unlimited data plans. Their 50GB plan for 10 days is a standout deal for heavy users who don’t want strict throttling.
Activation Process
After buying a plan on the Nomad app or website, you’ll receive a QR code. Scan it in your settings to install. Nomad also offers a ‘one-click’ installation on supported iOS devices.
Price
Starting at $5.00 for 1GB, Nomad is a bit pricier at the entry level but offers good value for larger data buckets.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 1 GB | 7 Days | $5.00 |
| 50 GB | 10 Days | $9.00 |
| 10 GB | 30 Days | $12.00 |
| Unlimited | 30 Days | $33.00 |
Pros & Cons
Pros
- Access to 3 networks (AIS/DTAC/True)
- Great user interface
- Unlimited data options
Cons
- Higher starting price
- Variable speeds depending on network
Jetpac
Airport Perks
Jetpac is known for its travel perks, specifically lounge access options which can be great if you have a layover. In Chiang Mai, it connects to multiple carriers, ensuring decent speeds. If you are considering purchasing a Jetpac eSIM, you will also benefit from a huge variety of plans.
Coverage
Jetpac connects to multiple carriers in Thailand, including TrueMove H, ensuring you have reliable roaming data whether you’re in the city or transit.
Data Plans
Jetpac offers a massive range of 24 different options, from small 1GB plans to unlimited data, catering to every type of traveler.
Activation Process
Purchase your plan online and receive a QR code instantly via email. Scan the code to install the eSIM profile, and simply turn on data roaming upon arrival to get connected.
Price
Plans start at $4.00, placing them in the mid-range category.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 1 GB | 4 Days | $4.00 |
| 3 GB | 7 Days | $5.00 |
| 5 GB | 30 Days | $7.00 |
| 10 GB | 30 Days | $11.50 |
| Unlimited | 7 Days | $26.99 |
Pros & Cons
Pros
- Huge variety of plans
- Lounge access perks
- Good network speeds
Cons
- Data-only service
- Slightly confusing plan options
aloSIM
International Number
aloSIM is a solid provider that uses the AIS network. A unique feature is the ability to get an international phone number via Hushed, which can be useful if you need to make calls back home or receive texts.
Coverage
aloSIM connects you to the AIS network, ensuring reliable 5G and 4G LTE coverage across Chiang Mai and throughout Thailand.
Data Plans
They offer fixed data packages ranging from 1GB for short trips up to 20GB for extended stays. Plans are data-only, but often include a Hushed phone number deal.
Activation Process
Buy your plan via the website or app. You’ll get a QR code to scan. To use the phone number feature, you’ll need to download the separate Hushed app and redeem your offer.
Price
Plans are competitively priced, starting at $3.50 for a 1GB introduction.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 1 GB | 7 Days | $3.50 |
| 2 GB | 15 Days | $5.00 |
| 3 GB | 30 Days | $6.00 |
| 5 GB | 30 Days | $8.00 |
| 10 GB | 30 Days | $16.00 |
Roamless
Pay-as-you-go
Roamless offers a unique pay-as-you-go model with data that doesn’t expire quickly. You load your wallet and pay for what you use on the AIS network. It’s great if you only need data intermittently.
Coverage
Roamless connects to the high-speed AIS network, providing excellent 5G coverage throughout Chiang Mai and Northern Thailand.
Data Plans
Unlike traditional plans, Roamless uses a wallet system. You pay for exactly what you use from your balance. 1GB costs roughly $2.95, and your wallet balance never expires.
Activation Process
Download the app and add funds to your wallet. Activate the eSIM once, and it will automatically work whenever you travel to a supported country like Thailand.
Price
The pay-as-you-go rate is $2.95 per GB, with a free 500MB trial available for new users.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 500 MB | 30 Days | FREE |
| 1 GB | 30 Days | $2.95 |
| 2 GB | 30 Days | $3.95 |
| 3 GB | 30 Days | $4.95 |
| 5 GB | 30 Days | $6.95 |
GigSky
Cruise Travelers
GigSky is a solid option for travelers who might be on a cruise or visiting multiple regions. They offer a free 100MB trial, which is perfect for checking if it works for you before committing.
Coverage
GigSky offers extensive coverage, often partnering with AIS or TrueMove H, making it reliable for land adventures and offering specific plans for offshore cruise connectivity.
Data Plans
They offer a unique free 100MB trial plan, along with standard regional and country-specific data packages for various durations.
Activation Process
Download the GigSky app to purchase and manage your plans. Installation is handled through the app’s guided process, ensuring you’re online quickly.
Price
Pricing starts at $4.99 for 1GB, with the free trial being a major perk for testing connectivity risk-free.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| 100 MB | 7 Days | FREE |
| 1 GB | 7 Days | $4.99 |
| 3 GB | 15 Days | $10.39 |
| 5 GB | 30 Days | $17.59 |
Holafly
Unlimited Data
Holafly specializes in unlimited data plans. While pricier, they are good if you don’t want to worry about data caps at all. It’s a reliable option, but keep in mind that hotspot usage is often restricted, and you may not get a full refund if you change plans.
Coverage
Holafly typically uses the TrueMove H or DTAC networks, providing wide coverage suitable for most travelers in urban and rural areas of Thailand.
Data Plans
Holafly is the go-to provider for unlimited data. They focus exclusively on unlimited packages, meaning you don’t have to worry about running out of data, although tethering is limited.
Activation Process
After purchase, a QR code is sent to your email. Scan it to install. Note that you cannot top up an existing eSIM; you must buy a new one for more days.
Price
As a premium unlimited service, prices start higher at $3.90 per day, but offer peace of mind regarding total data usage.
Pricing Plans
| Data | Duration | Price |
|---|---|---|
| Unlimited | 1 Day | $3.90 |
| Unlimited | 7 Days | $27.30 |
| Unlimited | 15 Days | $50.90 |
| Unlimited | 30 Days | $74.90 |
Our Verdict: The Best eSIM for Chiang Mai
After thorough testing and comparison of 10 different providers, eSIM4 is our clear winner for Chiang Mai travel.
The combination of rock-bottom pricing (starting at $2.98), premium AIS network access, and excellent customer service makes it the smartest choice. Whether you are backpacking through the mountains or enjoying a luxury stay in the Old City, eSIM4 ensures you stay connected without overpaying. The ease of setup and reliable 5G speeds give it the edge over competitors like Saily and Airalo. Using an eSIM in Chiang Mai is far more convenient and often better than a local SIM bought at the airport.
Get eSIM4 For Chiang Mai →How Do I Know If My Phone Is Compatible?
Most modern smartphones released in the last few years support eSIM technology. This includes iPhone XR and newer, Samsung Galaxy S20 and newer, and Google Pixel 3 and newer.
To be sure, check your device settings for an “Add eSIM” or “Add Cellular Plan” option. Whether you have a Samsung, Google Pixel, or iPhone, easy activation is key to starting your trip right.
Check Compatibility List →Can I Make Phone Calls with My eSIM?
Most travel eSIMs for Thailand are data-only. You can still use standard VoIP apps like WhatsApp, FaceTime, or LINE (the most popular app in Thailand) to contact friends and family, provided they have the same app and an internet connection.
A Smarter Way to Call with Yabb
While standard apps are great for chatting with friends, they often fail when you need to call a hotel, book a restaurant in Nimman, or contact a tour operator on a landline. Yabb solves this by allowing you to make high-quality voice calls to any mobile or landline number worldwide using your eSIM data. It works just like a regular phone call without the recipient needing an app, and it avoids the massive roaming fees charged by your home carrier.
- Standard Apps: Use LINE for free app-to-app calls in Thailand.
- Yabb Advantage: Call real phone numbers (hotels/restaurants) that don’t have apps.
- Zero Roaming: Avoid expensive per-minute voice charges from your home provider.
Can I Send Text Messages with My eSIM?
Need to send a quick text to a friend or confirm a booking? Yabb allows you to send and receive global SMS messages using your eSIM data.
Global Messaging
Unlike apps that require both parties to be online, Yabb lets you send real SMS texts to any mobile phone, ensuring your message gets through.
Key Features
- Pay As You Go: Purchase credits only when needed.
- Two-Way: Receive replies directly within the app.
- Global Reach: Works across Thailand and worldwide.
How to Activate an eSIM in Chiang Mai
Getting online in Thailand is straightforward. Follow these steps to activate the eSIM.
- Buy Online: Buy the plan from eSIM4 before your flight.
- Scan QR Code: You’ll receive a QR code via email. Go to Settings > Cellular > Add eSIM and scan it.
- Connect: Upon arrival at Chiang Mai International Airport (CNX), turn on the eSIM line and enable “Data Roaming”. You will connect to the AIS network automatically.
Essential Tips for Using eSIMs in Chiang Mai
To ensure a smooth experience while traveling across the north, here are three critical factors to keep in mind regarding your eSIM usage.
Check Device Compatibility
Before buying a plan, verify that your smartphone is eSIM compatible and carrier-unlocked. Most modern devices support this technology, but it is always best to check before you fly.
Install LINE
LINE is the dominant messaging app in Thailand. Install it before you arrive to communicate easily with local businesses, tour guides, and new friends in Chiang Mai.
Prioritize Wi-Fi for Heavy Tasks
While your eSIM keeps you connected on the go, reserve bandwidth-heavy activities for hotel or café Wi-Fi. Upload your photos of mountain temples to the cloud or enjoy streaming music while relaxing at your guesthouse. Use Wi-Fi for these tasks to preserve your mobile data for navigation using Google Maps.
How We Ranked These eSIM Providers
While many reviews rely on simple speed tests that only reflect a single moment in time, our approach is built on rigorous industry analysis. Our team of telecommunications experts audits the technical specifications that average users might miss but definitely feel in real-world performance. We look under the hood to see how the connection is delivered, not just if it connects.
Our Technical Evaluation Criteria
- Tier 1 vs. Tier 2 Network Access: We analyze the backend agreements to see if the eSIM connects to premium Tier 1 networks (like AIS) with priority access, or if it is relegated to a congested Tier 2 roaming partner. This determines if your data slows down in crowded areas like the Night Bazaar.
- Latency & Routing Stats: Speed isn’t everything; responsiveness is key. We evaluate the data routing paths (latency) to ensure your traffic isn’t being routed halfway around the world before reaching the internet, which causes lag in video calls and maps.
- Carrier Aggregation Support: We check if the eSIM profile supports carrier aggregation – a technology that allows your phone to connect to multiple frequency bands simultaneously. This technical feature, often missing in budget SIMs, is crucial for maintaining high speeds in dense urban environments.
- Fair Usage Policy (FUP) Analysis: We scrutinize the fine print of unlimited data plans to identify hidden throttling thresholds, ensuring our top picks offer genuine high-speed data that meets the demands of modern travel.
Frequently Asked Questions
Which eSIM is best for Chiang Mai?
eSIM4 is our top recommendation for Chiang Mai. It offers the best combination of low prices, reliable AIS coverage (crucial for trips to the mountains), and responsive support.
Do I need a physical SIM card in Thailand?
No. If your phone supports eSIM, a digital plan is cheaper and more convenient. You avoid the hassle of finding a store and swapping tiny physical SIM cards at Chiang Mai International Airport (CNX). Just make sure you have landed in Chiang Mai with your profile ready for wireless freedom.
Can I keep my WhatsApp number?
Yes. Your WhatsApp number will continue to work with your original number. It simply uses the data in Thailand from your Thai eSIM to send messages.
Does eSIM4 work at Doi Suthep?
Yes. Because eSIM4 uses the AIS network, which has the widest coverage in the country, it works excellently at Doi Suthep, Mon Jam, and other mountainous attractions.
How fast is the internet speed?
In Chiang Mai city and Nimman area, you can expect fast 5G speeds. In more rural areas or deep in the mountains, the cellular network typically switches to a stable 4G LTE signal.
Can I get a local phone number?
Most travel eSIMs are data-only. However, Airalo (dtac plans) and aloSIM offer local phone number options if receiving calls and SMS is essential for you.
