If you are preparing a trip and planning to use an eSIM to stay connected, you probably wonder whether you can keep using your favourite messaging apps. One of the most common questions travellers ask is: Will WhatsApp work with a Saily eSIM? The last thing we want while travelling is being left without connection or discovering our usual apps do not work as expected.
In this article we will clear every doubt about using WhatsApp and iMessage with this virtual card and compare it with other popular options like Holafly and Airalo. Planning a long trip or visiting several countries? Keep reading, this will interest you! You can also check this article about the best eSIM for internet in Ireland, in case you are preparing a trip there.
Nowadays, eSIMs have become an essential tool for those travelling abroad. No more dependence on physical cards or paying very high roaming charges. However, not all eSIMs provide the same experience, so it is important to know their limits and benefits before choosing.
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Will WhatsApp work with a Saily eSIM?
The good news is yes – WhatsApp works perfectly with a Saily eSIM. Since it’s a data-only eSIM, you don’t need a new number to keep using the app.
WhatsApp is linked to your account and original number, not to the connection type. Once you install the eSIM and activate mobile data, you can keep chatting, sending voice notes, photos and making video calls without issues. Just make sure roaming is enabled on your device and your account stays signed in.
You can also set WhatsApp to continue using your usual number even if your physical SIM has no coverage or is in flight mode. The key is simply having an internet connection, and that’s exactly what Saily provides. This will allow you to stay connected even if your traditional mobile operator doesn’t have agreements in the country you’re visiting.
This is especially useful if you are in an area without your operator’s coverage or if you left your SIM at home to avoid roaming charges. With your account active and connected to data, you won’t lose your chats, groups or history.
In short: you can use your phone as usual without telling your contacts you changed number. You can keep sending messages just as usual, without relying on a physical SIM card.
- Do you want a reliable data eSIM for any destination worldwide? You can find it here: eSIM Holafly.
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Will iMessage work with a Saily eSIM?
Yes, iMessage also works with a Saily eSIM. For Apple users, messaging is linked to your Apple ID and your device – not to the SIM card. As long as you have an active connection (Saily data), you can send and receive messages without problems.
However, if you want to use iMessage linked to your phone number (not only to your Apple email), you need to keep the physical SIM active or set as secondary on your device. With an iPhone Dual SIM, you can keep the original SIM inactive but connected, while the data eSIM manages internet access.
This is especially useful if you want to message other iPhone users and keep the usual format of your conversations. iMessage syncs seamlessly across your Apple devices, and in this case, the key is also having a reliable data connection.
What happens if you use WhatsApp on 2G with Saily?
Imagine landing in a new destination, activating your Saily eSIM, and opening WhatsApp to tell your family you’ve arrived safely. But the coverage is weak, and you’re stuck on 2G. Suddenly, sending a simple sticker takes minutes instead of seconds.
We’ve all been there, right? We have all been there, right? Although Saily usually offers good coverage in many countries, you will not always enjoy 4G or 5G. That’s why it’s so important to check coverage in your destination before travelling. For text messages, even a low connection usually works. But for video calls or large files, 2G isn’t enough.
Always test the speed as soon as you arrive. If it’s too slow, move to an area with better signal or consider an alternative provider. For digital nomads and frequent video callers, other eSIM options may be better suited. While Saily works fine for casual use, travellers often look at alternatives depending on their destination and needs.
Other data eSIM options
While Saily works well for staying connected, there are other eSIM providers on the market that may be better suited depending on your destination and travel needs. Below, we’ll look at two standout alternatives.
And if you’d like to explore more real options, don’t miss our full comparison of Ubigi vs. Holafly, two options we tested at Passporter.
Holafly: unlimited plans and global coverage
Holafly has become one of the best eSIM options for travellers, especially if what you need is unlimited data and a simple installation process. You can choose from country-specific, regional, or global plans. In many cases, Holafly includes truly unlimited data with no daily cap.
For example, if you’re planning a trip to Asia, check out our eSIM comparison for Malaysia to see which option fits best with your itinerary.
Key benefits of Holafly:
- Unlimited data in over 200 destinations.
- Easy installation in just seconds via QR code or app.
- Compatible with WhatsApp and iMessage from the first moment.
- 24/7 support in English, with personalised assistance.
- Perfect for digital nomads, creators or remote workers.
- Keep your WhatsApp number without changing any settings.
- Excellent coverage with access to powerful local networks.
- Data sharing available on some plans via tethering (depending on the country).
Holafly is highly recommended if your trip lasts more than a week, if you’re visiting multiple countries, or if you require a stable and fast connection for work or video calls. Holafly’s flexible plans with no hidden surprises are ideal if you’re looking for peace of mind and reliable connectivity at all times. Plus, it doesn’t change your WhatsApp number or interfere with your favourite apps.
With Holafly, you can choose from several options depending on your trip, and the whole process is handled online in just a few minutes. There are no hidden costs or extra charges for exceeding your data allowance. And if you prefer, you can even purchase your plan while already abroad directly through the app. From there, you can install it in seconds and monitor your data usage at any time.
- Do you want a reliable data eSIM for any destination worldwide? You can find it here: eSIM Holafly.
- Read our full review of Holafly.
Airalo: affordable rates and good compatibility
Airalo is another well-known alternative, especially thanks to its more affordable rates. It offers local and global eSIMs, with plans starting from 1GB. It’s a perfect eSIM for travellers who don’t need a large amount of data or who are planning a short getaway.
The advantages of Airalo include:
- Low prices for small plans.
- Available in more than 200 countries.
- Easy-to-use app to manage your eSIM.
- Compatible with WhatsApp, iMessage and other apps.
For example, if your next destination is Norway, don’t miss our comparison of the best eSIMs for Norway, ideal for planning your connection in advance if you decide to use Airalo.
That said, some Airalo plans come with speed restrictions or weaker coverage in rural areas, so we recommend reading the terms carefully before making your purchase. Even though it sits a step below Holafly in terms of unlimited data and premium features, Airalo remains a very valid option if you usually travel on a tighter budget.
In short, if you’re thinking about using an eSIM during your travels, Saily is a simple and functional choice to stay connected, especially if you frequently use apps like WhatsApp or iMessage. However, there are alternatives such as Holafly and Airalo that offer greater coverage, faster speeds, or even unlimited data. The best choice will depend entirely on the destination you are travelling to.
The most important step is to carefully compare all the options based on your needs and the type of trip you’re planning. Staying well connected can make the difference between a journey full of problems and a far more rewarding, safe, and comfortable travel experience.
Frequently asked questions about Saily eSIM
Yes, WhatsApp works perfectly as long as you have internet. It does not matter if you use a physical SIM or eSIM. An eSIM is also ideal for keeping your number active and continuing to use your chats just as always.
Yes, as long as you have an active data connection, you can use iMessage with your Apple ID or your number.
No, your WhatsApp account stays linked to your original number even if you switch network.
Still, everything will depend on the country you’re visiting. In most destinations it offers 4G. So it’s best to check the specific coverage in advance.
Yes, especially if you want unlimited data and more stability. Holafly is a superior option for long trips and demanding travellers. For longer and more demanding trips, Holafly stands out as the superior choice. In addition, its 24/7 English-language customer support sets it apart from other providers, making it one of its strongest advantages.
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