eSIM
Benefits of Switching to eSIM: Full 2026 Guide
Why travelers are switching from physical SIM cards to eSIM for cheaper data, instant activation, and easier global connectivity.
tl;dr: eSIMs let you skip roaming charges, activate data before you land, keep your home number running in parallel, and switch carriers if coverage is poor — all from your phone. They're more secure than physical SIMs, better for the environment, and Nomad eSIM plans cover 200+ destinations.
What is an eSIM, and why does it matter for travelers?
An eSIM is a SIM card embedded directly into your device — no slot, no tiny plastic card. Instead of buying a SIM at a foreign airport, you download a carrier profile via QR code or app before your flight even lands. For travelers, this means instant connectivity the moment you touch down, with none of the fumbling, queuing, or compatibility guesswork that comes with physical SIMs.
If you're used to physical SIMs, the differences go deeper than just format. See our full breakdown of eSIMs vs physical SIMs for a side-by-side comparison.
Global eSIM adoption is accelerating fast, where it is projected to exceed 1.5 billion connections by 2026, driven largely by travel and IoT use cases.
eSIM vs Physical SIM vs Roaming: At a Glance
For a deeper cost breakdown, see local SIM vs travel eSIM vs roaming.
eSIM for Travel: Pros and Cons
That said, Nomad eSIM has rolled out plans that include local numbers, calls, and SMS, starting from its new UK eSIM plans, with more destinations expected over time.
For the full breakdown, see eSIM pros and cons.
Does an eSIM actually save money on roaming?
Yes, and it's one of the biggest reasons travelers switch.
Traditional roaming locks you into your home carrier's international rates, which can run $10–15/day for basic data. An eSIM bypasses that entirely by connecting directly to local networks at local prices. With Nomad eSIM plans, it often comes at a fraction of roaming costs. Nomad eSIM covers 200+ destinations, so whether you're heading to Tokyo or Tallinn, there's a plan ready before you board.
Can I keep my home number while using a travel eSIM?
Yes, this is called dual SIM, and it's a game-changer for frequent travelers.
Most modern smartphones (iPhone XS and later, most flagship Androids) support running a physical SIM and an eSIM simultaneously. Your home SIM handles calls, SMS, and two-factor authentication. Your Nomad eSIM handles data. You never miss a call from your bank or your boss.
There's one nuance: on some devices, removing your physical SIM affects eSIM behaviour. Check whether your travel eSIM still works without your physical SIM inserted, and see can eSIMs be used as dual SIMs for a full walkthrough.
How reliable is eSIM coverage compared to a physical SIM?
Equally reliable, because it uses identical network infrastructure.
An eSIM connects to the same towers and carrier backbone as any physical SIM, delivering identical speeds.
If you're wondering whether eSIM might actually perform better in some conditions, our article on whether eSIM is faster than a physical SIM covers what the data shows.
Nomad eSIM lets you switch on the fly: Crossing from Thailand into Vietnam? Activate a new plan before the border. Or data plan is nearly out? Top up on the go before your plan runs out and you are all set.
Is eSIM more secure than a physical SIM?
Yes, in two important ways:
- Theft resistance: An eSIM can't be physically removed, so a stolen phone can't have its SIM pulled to disable Find My or break activation lock
- Fraud resistance: eSIM activation uses authenticated digital channels, eliminating SIM-swap fraud at a carrier store
For a full look at what eSIMs protect against (and what they don't), read: Are eSIMs Safe?
Which devices are compatible with eSIM?
eSIM is now standard on iPhones XS and newer, Android flagships including Samsung Galaxy S20+ and Google Pixel 3a+, and select iPads and MacBooks. Use Nomad eSIM's device compatibility checker to confirm your model in seconds, or read how do I know if I can use a travel eSIM for a full guide.
Does switching to eSIM have environmental benefits?
Yes, every physical SIM avoided is plastic and packaging eliminated.
eSIM profiles are delivered digitally, that means no card, no tray, no shipping. Apple removed the SIM tray entirely from the iPhone 14 (US) as part of its sustainability roadmap. For frequent travelers buying multiple local SIMs a year, switching to Nomad eSIM meaningfully cuts personal plastic consumption.
For eco-conscious travelers, this is a meaningful way to reduce plastic waste with every trip.
Are there limitations to eSIM? (And how does Nomad eSIM address them?)
Honest answer: yes, but most are either device-specific or already solved.
Learn more about you can make calls on WhatsApp, even when using a travel eSIM.
A physical SIM may still be preferable if you're in a region with very limited eSIM support, your device isn't compatible, or you need a local voice number.
For most travelers to mainstream destinations, none of these limitations apply, but it's worth knowing before you go.
Who is eSIM best for?
eSIM isn't one-size-fits-all — but it fits most travelers well. Here's a quick guide:
- Frequent Flyers: Maximum time and cost savings across many destinations
- Digital Nomads: Dual SIM and seamless country switching suit long-term travel lifestyles
- Business travelers: Keep work number active while avoiding expensive roaming charges
- Occasional travelers: Still saves money, with only a small learning curve on first setup
- Backpackers / long-haul trips: Multi-country plans reduce the hassle of buying SIMs in every destination
- Budget travelers: Savings can be meaningful, allowing you to stretch the budget for your trip7
Frequently Asked Questions
Can I use an eSIM and physical SIM at the same time?
Yes, most modern smartphones support dual SIM functionality. You can keep your home number active while using a travel eSIM for data.
Can I install an eSIM before my trip starts?
Yes. In fact, it's recommended. Most travelers install and activate their eSIM before departure so they have data immediately upon landing.
Is eSIM more secure than a physical SIM?
Yes, eSIMs are embedded in your device and cannot be easily removed, cloned, or swapped, reducing the risk of theft and fraud.
Will an eSIM work in every country?
eSIM compatibility is expanding fast. Nomad eSIM offers data plans covering over 200 destinations, letting you choose the best carrier for your destination.
What happens if I run out of data while traveling?
Most travel eSIM providers, including Nomad eSIM, allow you to top up directly from the app without visiting a store or changing SIM cards.
Can I hotspot or tether using a travel eSIM?
Yes, most travel eSIM plans support hotspot sharing, though allowances may vary depending on the destination and carrier.
Will my WhatsApp number change if I use an eSIM?
No. WhatsApp stays linked to your existing phone number, even if you switch your mobile data connection to an eSIM.
What happens to my eSIM after the trip ends?
The eSIM profile remains on your device unless you manually delete it. Some travelers keep expired profiles for future top-ups or repeat trips.
Conclusion: Why Choose eSIMs (and Nomad eSIM) for Global Travel?
If you're paying roaming fees, buying airport SIMs, or traveling with a second phone just for local data - an eSIM solves all three problems at once. Add the security advantages, the environmental benefit, and the ability to switch carriers mid-trip, and the case for switching is hard to argue with.
The one real prerequisite: a compatible device. Check yours with Nomad eSIM's device compatibility checker, then browse Nomad eSIM plans for your next destination. Whether it's a weekend in Bangkok or three months across Europe, there's a Nomad eSIM plan sized for the trip.
Nomad eSIM Free Trial
Try Nomad eSIM risk-free with our free trial—no contracts, no commitment. Set up in minutes, enjoy secure connectivity, and manage everything easily through the Nomad eSIM app.
