Roamless and Saily are two global eSIM providers that offer reliable mobile connectivity in over 200 countries and regions. While both support international mobile data, their services differ in several key areas, including how plans are structured, the ability to choose between countries and specific regions, and which extra features are available in their apps. This review compares important differences in coverage, speed, pricing, and user experience to help you decide which eSIM app is the better fit for your needs while traveling.

Roamless vs. Saily: Overall comparison

When choosing an eSIM provider for international use, it’s important to compare data flexibility, coverage, pricing, setup process, customer support, and more. Here’s a side-by-side comparison of how Roamless and Saily differ across key features:

For more information, you can also check out our post on the Best eSIM for International Travel.

Which data plans do they offer, and which is more affordable?

Roamless is slightly more affordable than Saily across most countries and regions, though both eSIM services offer wide international coverage with prepaid data plans.

Roamless provides two options depending on your travel needs. RoamlessFix offers fixed data amounts valid for 30 days, while RoamlessFlex is a pay-as-you-go option with no expiration date. This lets you add data only when you need it and keep any unused balance for future trips. It works well for both people who use small amounts of data and those with higher data needs.

Saily only provides prepaid plans with fixed durations, from 7 to 365 days. Each plan includes a specific amount of data. While unlimited data options exist, they are only available in select destinations. Saily does not provide data plans that adapt to how much you use. Once activated, plans must be used within their set validity period.

Roamless vs Saily: Which eSIM is better for your data usage?

Your choice of eSIM depends on how much data you expect to use while traveling. Roamless and Saily offer different options for occasional use, regular activities like checking emails, or higher data needs like video streaming.

Roamless vs Saily: Plan and pricing comparison by destination

Finding the right eSIM service depends on where you're going and how much mobile data you need. The table below compares Roamless and Saily across selected countries, including plan types, available data amounts, and pricing details. This can help you choose the option that better fits your travel plans, data usage, and trip duration:

Note: Roamless offers both fixed and pay-as-you-go options, along with a free trial, making it suitable for different data needs. Saily provides prepaid plans with fixed durations, with unlimited data available only in some destinations.

For more information, you can also check out our pages on eSIM USA, eSIM Canada, eSIM United Kingdom, eSIM Germany, eSIM France, eSIM Italy, eSIM Japan, eSIM China, eSIM Australia, eSIM Saudi Arabia.

Disclaimer: All prices are listed in USD. The prices and data plans mentioned were retrieved from each eSIM provider’s website in June 2025, and may change over time. Please verify the most current details directly with both eSIM service providers.

Which eSIM provider offers more coverage options for travel destinations?

Both eSIM services offer various data plans in over 200 destinations worldwide. However, the way they organize their coverage and plan types differs, offering varying levels of flexibility based on your travel needs:

Roamless

• Offers coverage in more than 200 destinations, including country-based, regional, and city-level plans.

• Regional data plan options include Africa, Asia & Oceania, Europe, Latin America, Middle East, North America, and Global.

• The Global plan is available through RoamlessFix, compatible with a wide range of devices and offering high-speed mobile connectivity. All plans offer high-speed data with no speed restrictions and include unlimited hotspot and tethering support.

Saily

• Also provides coverage in over 200 destinations through country and regional plans. Unlike Roamless, there are no city-specific data plans.

• Regional data plan options include Africa, Asia & Oceania, Europe, Caribbean Islands, Latin America, Middle East and North Africa, North America, and Global.

• The Global plan includes data access in many countries, with validity options from 7 to 365 days. All plans support unlimited hotspot and tethering with no speed limits.

Here’s a direct comparison of Roamless and Saily’s Global eSIM plans, including available data amounts, pricing, and validity:

Note: Saily’s Global plan can remain active for up to 365 days, but comes with a fixed data limit. For example, the one-year global data plan includes 20 GB, which may not be enough for trips that require large amounts of data. In addition to its Global plan, Roamless also offers pay-as-you-go options in many destinations. These options let users purchase data as needed, without fixed durations.

Disclaimer: All prices are listed in USD. The pricing and coverage information provided is based on details available from each provider’s website in June 2025, and may change over time. Please verify the most current details directly with both eSIM service providers.

Which eSIM provider offers faster and more reliable mobile connections?

Both Roamless and Saily offer mobile internet connections with support for 3G, 4G, and up to 5G, depending on the local network in each destination. There are no speed limits applied by either provider, so users can benefit from full network performance where available.

• Roamless: Provides consistently fast mobile internet connections across all plan types, including country, region, and city-based options. Supports 3G, 4G, and up to 5G speeds. No speed reduction is applied, and hotspot usage is unlimited.

• Saily: Also supports 3G, 4G, and up to 5G speeds, depending on local infrastructure. Hotspot use is unlimited, and average performance is similar to Roamless in most locations.

Both providers offer dependable performance for international mobile data, covering a wide range of network technologies and destinations.

Can you make international calls with Roamless and Saily?

Yes, but the options differ. Roamless includes international calling directly in its app, while Saily does not support traditional phone calls or text messaging through mobile networks.

Roamless offers international voice calls through its mobile app using mobile data:

• You can call more than 200 destinations worldwide without needing a separate SIM card or voice plan.

• Call rates start at $0.01 per minute and are deducted from your Roamless wallet, which is also used for data.

• All calls are made over mobile data, and the feature works wherever data is available.

• A feature called ‘’Roamless Numbers’’ is under development. It will allow users to receive calls via local phone numbers from more than 80 country codes and display a local number as their Caller ID for outbound calls.

Saily is a data-only eSIM provider:

• It does not support traditional voice calls or SMS over the mobile network.

• All calls must be made through VoIP apps like WhatsApp, Telegram, or Skype.

• This setup works well for app-based communication but lacks built-in calling features or local number support.

Disclaimer: Pricing and feature details were retrieved from the providers’ websites in June 2025 and may change over time. Please verify the most current details directly with both eSIM service providers.

How does eSIM activation and setup work on each eSIM service?

Roamless and Saily both support fast and user-friendly activation processes, though there are minor differences in setup flexibility and device configuration steps.

Roamless

• On iOS, activation is possible via single click (iOS 17.4 or later), QR code, or manual setup.

• On Android, users can install the eSIM manually.

• Once activated, the eSIM remains ready for future use and does not require reactivation, unless switching devices.

• Users can transfer the eSIM by removing it from the current device and reinstalling it on a new one using the same Roamless account.

Saily

• On iOS, the eSIM can be installed via QR code or manual input through the device settings. 

• On Android, the eSIM is added manually.

• Roaming must be enabled on your device for the service to work.

• eSIMs can be transferred to another compatible device by removing them from the current phone and installing them again using the same Saily account.

Disclaimer: Information was retrieved from official provider websites in June 2025 and may change over time. Please verify the most current details directly with both eSIM service providers.

How do Roamless and Saily compare in terms of customer support?

Both Roamless and Saily have responsive and professional customer support teams that assist users with eSIM setup, technical troubleshooting, and account-related questions.

Roamless provides customer support through a contact form available in both its mobile app and official website. Responses are typically delivered via email and are known to be fast and solution-oriented. Roamless also provides multilingual support to assist users across different regions.

Saily, on the other hand, offers support through an in-app live chat and a contact form. While live chat is accessible within the app, most replies are sent via email. Users can also find setup instructions and troubleshooting resources on the official website. Saily provides multilingual support as well.

Disclaimer: Information was retrieved from official provider websites and apps in June 2025 and may change over time. Please confirm directly with Roamless and Saily for the latest support policies and contact options.

Do Roamless and Saily offer any additional features or benefits?

Yes, both apps include useful benefits beyond standard data plans. Here’s what each provider offers:

Roamless

• $5 top-up bonus: Get $5 bonus credit when you top up your wallet with $20 or more (applies to your first top-up only).

• eSIM referral program: Invite a friend and both of you receive $5 in bonus credit after their first eSIM purchase.

• Roamless Numbers (coming soon): A new feature that allows users to receive incoming calls and display local numbers from over 80 countries as caller ID.

• Usage tracking and data management: The app makes it easy to monitor your data balance and manage plans.

Saily

• Referral program: Invite a friend and both of you receive $5 in credit after the friend purchases their first eSIM.

• Automatic APN configuration (for Android): The app can automatically configure APN settings when opened on Android devices, simplifying the setup process.

• In-app data tracking: Users can monitor their active plan details, including remaining data and validity.

• Multi-plan management: The app allows managing multiple active eSIMs from a single interface.

Disclaimer: Bonus offers, referral rewards, and app features mentioned above are based on information available from each provider’s website in June 2025. These details may change over time. For the most accurate and up-to-date information, please check directly with Roamless and Saily.

Roamless or Saily: Which one is better in 2025?

Roamless is the better choice for most international tourists looking for adaptable data plans and extra features. With coverage in over 200 destinations, Roamless lets users choose between 30-day fixed data plans and pay-as-you-go options with no expiration, making it easier to manage data usage across short or long trips. The service includes benefits such as welcome bonuses, referral rewards, and built-in international calling directly from the app.

Saily, on the other hand, offers prepaid eSIM data plans with set data limits and flexible durations ranging from 7 to 365 days. Its user-friendly app and simple setup process make it accessible for international visitors who want straightforward eSIM activation. While Saily covers over 200 destinations and supports up to 5G speeds, it does not include traditional voice calls or SMS functionality and lacks city-specific data plans. Unlike Roamless, Saily does not support a pay-as-you-go model, which may limit flexibility for users who prefer to purchase data only when needed.

Roamless holds a strong 4.7 out of 5 rating on the Apple App Store, reflecting positive feedback from users globally who appreciate its easy-to-use app, diverse plan options, and helpful features designed for international travel.

If you’re seeking a travel eSIM with varied plans, useful added features, and a more comprehensive mobile data experience while abroad, Roamless is probably the better choice.

FAQ

Is Roamless more affordable than Saily?

- Yes, Roamless generally offers slightly lower prices per GB across many countries. It provides flexible pay-as-you-go options and fixed data plans with transparent pricing. Saily mainly offers prepaid plans with fixed durations, which can be more expensive for shorter trips or lower data needs.

How extensive is the global coverage of Roamless and Saily?

- Both eSIM providers cover over 200 destinations. While Roamless includes country-based, regional, and city-specific plans, Saily offers only country and regional plans.

Can I keep my unused data with Roamless or Saily?

- Yes, but only with Roamless. Its pay-as-you-go model allows users to carry over unused data with no expiration. Saily’s plans have fixed validity periods and do not support data rollover.

Can I make international calls with Roamless or Saily?

- Yes, but only Roamless supports in-app international calls starting at $0.01 per minute to over 200 destinations. Saily does not include traditional voice calls or SMS functionality, users must use third-party VoIP apps for international calls.

Can I send SMS with Roamless or Saily?

- No, SMS is not currently supported by either provider. All text communication must be done through VoIP apps like WhatsApp or iMessage. However, SMS support is expected to be available soon through Roamless’s upcoming Roamless Numbers feature.

Can I use Roamless or Saily for hotspot and tethering?

- Yes, both providers allow unlimited hotspot and tethering usage where supported by local networks, helping users share their data connection with other devices.