Travel essentials · Connectivity
Yesim vs Saily: Which Travel eSIM Should You Choose? (2026)
We compare the practical choices that matter before landing: destination coverage, data allowance, setup and keeping your hotel and pickup details accessible. This is a comparison of published provider information, not a first-hand speed or app test.
Quick answer
Choose Yesim if you want to compare unlimited, regional or multi-country plans. Choose Saily if you want app-managed data with easy top-ups from Nord Security, the company behind NordVPN.
Both now offer multi-country options. We suggest comparing the countries included, validity and usage terms of the actual plan rather than choosing on the brand name alone.
What is a travel eSIM?
A travel eSIM is a digital SIM you can usually install before you fly. Your phone needs to be eSIM-compatible and unlocked. Most standard travel eSIM plans are data-only, so use WhatsApp or a similar app for calls unless you have separately purchased a calling service.
Yesim vs Saily: compare the features
| Feature | Yesim | Saily |
|---|---|---|
| Company | Swiss-based; launched in 2019 | From Nord Security, the company behind NordVPN |
| Coverage | Over 200 destinations advertised; coverage varies by plan | Over 200 countries and regions advertised; coverage varies by plan |
| Plan types | Fixed-data, unlimited, regional, global and pay-as-you-go options | Country, regional and global plans; check available data sizes and unlimited options |
| Top-ups | Manage plans and top-ups in the app; check the selected package | Manage plans and top-ups in the app; check the selected package |
| Hotspot | Supported on most plans; check restrictions | Supported; check the selected plan's terms |
| Calls/SMS | Standard travel data plans are data-only; separate virtual-number services are distinct | Standard data plans are data-only; an optional phone-number and calls/texts add-on is available |
| Best for | Travellers comparing multi-country or unlimited-data options | Travellers wanting app-managed data from Nord Security, for one country or several |
Coverage totals describe each provider's catalogue, not the countries included in every package. Check your exact destinations before purchasing.
Yesim: who it suits, pros and cons
Yesim is worth comparing if your trip crosses borders or you expect to use substantial mobile data. We would start with the destination list and usage conditions, then compare a fixed-data package with the unlimited options available for the same trip.
Pros
- Local, regional and global choices for different itineraries.
- Fixed-data and unlimited options, plus pay-as-you-go choices.
- App-based plan management and top-ups.
Cons and checks
- More plan types mean more conditions to compare before buying.
- Unlimited plans can have fair-use restrictions; read the selected package's terms.
- Standard data plans do not replace your normal mobile calling and SMS service.
We have not tested notification frequency or compared setup speed, so we do not present either as a confirmed disadvantage.
Get your eSIM on Yesim ->Saily: who it suits, pros and cons
Saily is worth comparing for a single-country break when you want to manage your data in an app from Nord Security. Regional and global plans are also available, so we would check those before buying separate country packages for a longer itinerary.
Pros
- Country, regional and global plans within one service.
- In-app purchases, top-ups and setup guidance.
- A provider from the company behind NordVPN.
Cons and checks
- Standard data plans do not include ordinary calls or texts; any optional calling add-on has separate terms.
- A regional or global plan may not include every stop on your itinerary.
- Coverage and network performance depend on the destination and selected plan, not the security-company background.
How to set up a travel eSIM in five steps
- Check compatibility. Confirm your exact handset supports eSIM and is carrier-unlocked.
- Buy before you travel. Check destinations, data, validity and when activation begins before completing the purchase.
- Install on reliable Wi-Fi at home. Follow the provider's app or QR-code instructions and keep the setup information accessible.
- Switch on at your destination. Select the travel eSIM for mobile data and follow the plan's activation instructions.
- Check roaming settings. Enable data roaming for the travel eSIM where instructed, keep it off on your home line and disable automatic data switching to avoid unintended home-network data charges.
Prices and plans change often – always check the current price in the app before buying.
Frequently asked questions
Is Yesim legit?
Yesim is an established Swiss-based eSIM provider that launched in 2019. We suggest checking the current plan coverage, device requirements and purchase terms rather than treating a provider's history as a guarantee of signal or speed.
Is Saily good for travel?
Saily can suit travellers who want to buy and manage mobile data in an app, with country, regional and global options. We suggest comparing its coverage and data allowance for your actual itinerary before choosing it over another provider.
Can I keep my WhatsApp number?
Yes, you can normally keep your existing WhatsApp number while using a travel eSIM for mobile data. Do not change the registered number in WhatsApp, and retain access to your usual number if account verification is needed.
Do eSIMs work on all phones?
No: your exact phone model must support eSIM, and it must be unlocked for another provider. We suggest checking the provider's compatibility list and your handset's regional version before paying.
When should I install my eSIM?
Install before departure over reliable Wi-Fi when the selected provider's instructions allow it. Check when the plan's validity starts, then follow its activation instructions at your destination rather than assuming installation and activation are the same step.
Provider information checked on 5 November 2026 against Yesim's company, plan and help pages and Saily's destination catalogue and help centre. Confirm the current plan terms before purchase.