Saily vs Airalo: Price, Data, Coverage Compared for Thailand

The comparison focuses on three practical factors. Price per gigabyte shows how much each plan costs at matched data tiers and validity periods. Host operator coverage determines which Thai mobile networks support each service and how network availability affects connectivity across destinations. Setup flow measures the steps required to purchase a plan, install the eSIM, activate it, and connect to mobile data. The results help travellers compare costs, understand network access, and choose a service that suits their Thailand itinerary. Plan prices and availability change, so the comparison uses prices captured on the stated review date. The review is independent and not sponsored by either provider. Airalo and Saily on test, with prices captured on October 9, 2026.

What Is Saily?

Saily is a travel eSIM service developed by Nord Security, the cybersecurity company behind NordVPN. The service provides prepaid mobile data plans for international destinations, allowing travellers to connect without purchasing a physical SIM card. Saily’s Thailand plan family offers fixed data allowances of 1 GB, 3 GB, 5 GB, 10 GB and 20 GB, alongside an unlimited data option. The 1 GB plan lasts 7 days, while the 3 GB, 5 GB, 10 GB and 20 GB plans last 30 days. The unlimited option offers a 15-day validity period. Unlimited data includes 5 GB of high-speed data per day, followed by reduced speeds of up to 1 Mbps. Saily supports personal hotspot use, although its unlimited plan terms restrict excessive tethering and sharing with multiple devices or users. Regular data plans have a 180 day activation window before automatic activation. Travellers must review the Saily Thailand terms before purchasing.

What Is Airalo?

Airalo is a travel eSIM marketplace that provides mobile data packages for international travel across more than 200 destinations. Its catalogue features country-specific, regional and global plans, allowing travellers to compare data allowances, validity periods and prices in one account. Airalo lists more than one Thailand plan, and the available packages do not all connect through the same mobile operator. Network access depends on the specific eSIM selected, so one plan’s operator, coverage, data allowance, validity or tethering terms must not be treated as universal Airalo conditions.

Thailand plans vary by data allowance and duration, with fixed data packages and unlimited options available depending on the current catalogue. Before purchasing, travellers must check the exact listing for the host network, supported connectivity, activation requirements, and hotspot restrictions. Prices and plan availability change over time, so comparisons must use matching allowances and validity periods. The marketplace model offers flexibility, but each package requires individual verification to ensure it suits the itinerary and expected data use.

Which Is Cheaper for Thailand?

Compare matched data tiers at matched validity on the same capture date. Saily offers the lower price for entry-level data and slightly undercuts Airalo on the 5 GB and 10 GB plans with 30-day validity. Airalo becomes more competitive at higher data allowances and offers the lower price for 20 GB over 30 days. The 20 GB tier is the clearest price advantage for Airalo, at $18.00 compared with Saily’s $19.99. Unlimited plans are nearly tied at the 15-day duration, with Saily costing one cent less in the listings checked. Validity matters when comparing smaller allowances. Airalo’s 1 GB plan lasts 3 days, compared with Saily’s 7 days. Airalo’s 3 GB option lasts 7 days, while Saily’s 3 GB plan lasts 30 days. The table flags these mismatches rather than presenting them as equivalent offers. The Airalo price capture method uses displayed USD prices checked on October 9, 2026, and calculates price per GB by dividing the total price by the fixed data allowance.

The comparison of Saily and Airalo is shown in the table below.

Do the Validity Windows Match?

The validity windows do not match across every data tier, so the lowest price does not always represent better value. Saily’s 1 GB plan lasts 7 days, compared with Airalo’s 3 days. Saily’s 3 GB plan lasts 30 days, while Airalo’s lasts 7 days. Both providers offer 5 GB, 10 GB, and 20 GB plans with 30-day validity in the compared listings. The unlimited plans compared last 15 days each. The table flags the 1 GB and 3 GB mismatches because shorter access limits the time available to use the allowance. Travellers on brief stopovers might prefer Airalo’s shorter 3 GB validity if the allowance meets their needs, while visitors staying several weeks gain more flexibility from Saily’s 30-day entry tier. Unused data generally expires when the plan’s validity ends, so the purchase decision must account for arrival and departure dates, expected daily usage, and top-up options. Compare the full validity period before choosing Airalo on longer stays.

Which Operator Does Each Use in Thailand?

Coverage in Thailand follows the host operator each plan attaches to, so the comparison must identify the networks rather than treat Saily and Airalo as mobile operators. Airalo’s Thailand listings identify AIS and TrueMove H for its data eSIMs, with other products using dtac. Independent field tests from September 24 to October 1, 2026, observed Saily connected to AIS, dtac, and TrueMove H, while Airalo connected to AIS and TrueMove H. The difference matters on islands, at ferry piers and along northern mountain roads, where signal strength and local infrastructure vary. Saily’s terms allow traffic shaping or throttling during high demand or in specific locations. Neither provider’s public terms establish a universal network deprioritisation rule for every Thailand plan. Coverage guarantees for specific remote locations are not supported by the available evidence. Review Airalo host operator details for the exact plan before purchase.

Speeds and Throttling Compared

A matched field test published October 2, 2026, measured both services in six shared locations across Bangkok and southern Thailand between September 24 and October 1. Saily recorded a median download speed of 301 Mbps and upload speed of 74.6 Mbps, while Airalo recorded 114 Mbps download and 50.2 Mbps upload. Median latency measured 81 ms for Saily and 478 ms for Airalo. Results varied by location, from 58.5 to 670 Mbps for Saily and 45.9 to 238 Mbps for Airalo. The study observed overlapping host networks, but the results were not nearly identical. Network congestion, routing, signal conditions, and server response affect performance. Saily’s terms permit throttling in certain circumstances, while plan-specific Airalo limits require separate verification.

Tethering Permission Compared

Saily and Airalo support personal hotspot use, subject to plan terms, device compatibility and network support. Saily provides official hotspot setup instructions for iOS and Android, and its unlimited plan terms must be checked for restrictions on extensive sharing. Airalo permits tethering when the device and network support the feature, with manual APN settings required for some eSIMs. Neither service guarantees identical hotspot performance across every Thailand plan. Travellers using a laptop or several devices must check the selected plan’s fair use rules before purchase. The official help pages were checked on October 9, 2026. Review the Airalo tethering rules before selecting a package.

Which App Is Easier to Use?

Saily offers a guided setup flow that takes users from plan purchase to eSIM installation, data roaming, and automatic activation on arrival. Airalo guides users through purchase, installation and connection settings, with network and APN instructions available in the app. For a consistent comparison, the step count starts at completed purchase and ends when mobile data works. Saily requires three broad stages, while Airalo requires three broad stages, with an extra APN step when manual configuration is needed. Both apps support top-ups on eligible plans and display data usage, although no independent accuracy test establishes that either display is more precise. Saily provides 24/7 support through its app, while Airalo offers help centre guidance and customer support routes. Airalo’s main advantage is its marketplace catalogue, which makes it convenient to compare destination plans in one account. The Airalo setup flow is useful for checking installation and connection requirements.

Where Airalo Is the Better Choice

Airalo is the better choice for travellers who visit many countries a year, want one account across a wide catalogue, or need a very small cheap bundle for a short Thailand stopover. Airalo has operated since 2019, reporting 10 million users, a base that keeps the catalogue broad on obscure routes.

The strengths of Airalo are listed below.

• Coverage: Airalo lists 201 destinations against 190 on Saily, a lead of 11 destinations that includes less common stops (Uzbekistan, Cape Verde).
• Account: A single Airalo account holds local, regional, or global plans, which keeps purchases on repeat trips in one place.
• Regions: The Eurolink plan covers 42 European countries, against around 35 on the Saily Europe plan, a gap that matters on a route across multiple borders.
• Entry size: Plans start near [$4.50], covering 1 GB over 7 days, a small bundle that suits a short Thailand stopover.

Frequent travellers must compare destination availability, network terms and validity before deciding. Reviews of other providers tested help place Airalo’s strengths in context without assuming every plan offers the same features.

Which Should You Buy for a Thailand Trip?

Choose a Thailand eSIM based on trip duration, expected data use, hotspot needs, and destination coverage.

To buy for a Thailand trip, follow the six steps below.

• Choose Saily for a Bangkok city break. Select the 5 GB, 30-day plan for maps, messaging, and everyday browsing.
• Select Saily for a 10-day island route. Use the 10 GB, 30-day plan and verify host network coverage across the islands before departure.
• Pick Saily for a month in Chiang Mai. Choose the 20 GB, 30-day plan for regular navigation, browsing, and video calls.
• Choose Airalo for multi-country travel. Use its marketplace to compare country and regional eSIMs under one account. Check coverage and validity before crossing borders. Review Airalo on multi-country routes for destination planning.
• Prioritize tethering for heavy hotspot use. Select a plan with clear hotspot permission and enough data for connected devices. Check fair use limits before buying an unlimited package.
• Choose Saily as a first-time eSIM buyer. Follow its guided installation process and use 24/7 in-app support when needed. Confirm device compatibility before checkout.

Can You Use Both?

Yes, using Saily and Airalo on one compatible phone provides a backup when one eSIM has weak coverage on an island route. The extra cost equals the price of the second plan, with current entry options starting at $2.99 for Saily’s 1 GB plan and $4.00 for Airalo’s 1 GB plan.

Two eSIMs do not guarantee access to two different networks, so check each plan’s host operator before buying.

Questions About Saily and Airalo in Thailand

Is Saily Cheaper Than Airalo in Thailand?

Yes, Saily is cheaper at most matched fixed-data tiers, while Airalo wins on 20 GB. Saily costs $2.99 per GB for 1 GB, $2.00 per GB for 3 GB, $1.60 per GB for 5 GB, $1.10 per GB for 10 GB, and $1.00 per GB for 20 GB. Airalo costs $4.00 per GB for 1 GB, $2.00 per GB for its 3 GB, 7-day plan, $1.60 per GB for 5 GB, $1.10 per GB for 10 GB, and $0.90 per GB for 20 GB.

Saily wins by a small margin at 5 GB and 10 GB, while Airalo becomes cheaper at 20 GB. The 3 GB comparison depends on validity because Airalo’s 3-day package costs $5.50, while its 7-day package costs $6.00 and Saily’s package lasts 30 days. Unlimited plans need a separate comparison by duration and high-speed data terms.

Which Has Better Coverage on the Islands?

Saily offers a convenient option for travellers exploring Thailand’s islands, with a straightforward eSIM setup and mobile data access without a physical SIM card. Airalo provides Thailand plans connected to different local networks, so coverage depends on the operator assigned to the selected plan. Travellers visiting Phuket, Koh Samui, Koh Lanta, and smaller islands must check network availability near beaches, ferry piers, and accommodation before purchasing. Coverage maps provide useful guidance, although terrain, buildings, weather, and network congestion affect reception. Saily stands out for its convenient travel experience, but travellers must verify the host network and local coverage to determine which plan best suits their itinerary.

Do Both Include 5G?

Yes, both services offer access to 5G where the selected plan, host network, and device support it. Availability does not apply uniformly to every Thailand data tier, so travellers must review the specific package details before purchasing. A compatible phone must support the local operator’s 5G frequency bands, and active 5G coverage must exist at the destination. Network congestion and signal conditions affect actual speeds, even when a plan supports 5G. Travellers must check device compatibility and the selected network’s coverage information before departure. Review Airalo 5G position to confirm the stated 5G support for the exact Thailand package.

Do Either Give a Thai Phone Number?

Saily provides a physical phone number for regular calls and SMS, whereas standard data-only eSIM plans from Airalo do not. Airalo primarily provides mobile data for internet access, navigation, messaging apps, and online calls. Travellers using Airalo who need a local number for restaurant bookings, local calls, text messages, or SMS verification must purchase a Thai SIM with voice and SMS service from a local mobile operator. Internet calling apps offer an alternative for contacting friends and businesses over data, but they do not replace a local number for services that require traditional calls or SMS verification.

Which Is Better for a Month-Long Stay?

Saily is a strong choice for a month-long stay in Thailand, offering a simple app-based setup and built-in digital security features for everyday travel. Its 20 GB plan over 30 days suits travellers who need data for navigation, messaging, browsing, and video calls throughout their trip. Airalo lists a comparable 20 GB plan at a lower price, but the best option depends on network coverage, hotspot conditions, and plan terms. Saily provides a convenient experience for travellers who value easy management and added online protection. Travellers who stream frequently, work remotely, or use hotspots extensively must check whether the selected data allowance meets their needs.

Can I Top Up on Both?

Yes, you can top up on both services support top-ups on eligible eSIM plans through their apps. Saily users can open the active eSIM in the Saily app and check available data add-ons, while Airalo users open My eSIMs, select the relevant eSIM, and choose Top up when the option appears. Neither provider has one universal top-up price because the cost depends on the selected data allowance, validity period, and package availability. Travellers must check the displayed price before confirming payment. Users must verify top-up eligibility before purchase because some plans require a new eSIM instead of an additional data package.

Which Is Better for a First-Time eSIM Buyer?

Saily is a practical starting point for first-time buyers because its guided installation flow walks users through plan setup and connection. Both services follow three broad stages, purchase, installation, and connection, while Airalo might require an extra APN configuration step for certain plans or devices. A fair comparison counts each action on the same phone from completed purchase until mobile data works. Saily offers in-app support around the clock, while Airalo provides installation instructions and customer support routes. First-time buyers must check device compatibility, install the eSIM while connected to Wi-Fi, and follow the selected package instructions before travelling.