eSIM vs Physical SIM in 2025: What Travellers Need to Know

PUBLISHED October 10th, 2025 07:32 am

Staying connected while travelling used to mean scrambling for a local SIM card at the airport or dealing with spotty hotel Wi-Fi. Fast forward to 2025, and travellers now have a modern alternative: eSIM technology. But does it really beat the good ol’ physical SIM? If you’re planning your next getaway, or just want a seamless mobile experience on the move, this guide breaks down the pros and cons of both options.

Spoiler: we’ve also included a way to save 5% on your next travel SIM through our partner Sim Local.

What is an eSIM?

An eSIM (short for “embedded SIM”) is a digital version of the traditional SIM card that’s already built into your phone. It allows you to activate a mobile plan without physically inserting anything into your device. Most flagship smartphones from Apple, Samsung, and Google now support eSIM, and the list is growing rapidly.

Instead of juggling SIM cards at every airport, you can switch plans from your hotel room or even mid-flight with Wi-Fi. For multi-country trips, it’s a game changer.

Physical SIM Cards: Still Holding Their Ground?

Despite the hype around eSIMs, physical SIM cards still dominate in certain parts of the world. In many developing markets, physical SIMs remain the go-to due to broader compatibility and sometimes cheaper local plans.

Travellers who use dual-SIM phones may also prefer having a local SIM alongside their home number for flexibility. However, the need to physically swap, store, or replace these cards makes them less convenient than eSIMs, especially for frequent flyers.

eSIM vs Physical SIM: Key Comparisons

In short, eSIMs win on convenience, especially for tech-savvy travellers and digital nomads hopping between countries.

Travel Trends in 2025: Why eSIMs Are Taking Off

The pandemic accelerated remote work and long-term travel, and with it came a surge in demand for borderless connectivity. Many telcos have shifted to eSIM-first strategies, and airports like Narita and Heathrow now feature eSIM QR code vending machines.

Major eSIM platforms are offering flexible plans by region (e.g. Southeast Asia, Europe), allowing travellers to buy once and roam freely. This is ideal for stopovers, spontaneous day trips, or crossing borders by train.

Enter Sim Local: A Smarter Way to Stay Connected

Here’s where things get even easier. If you’re ready to try an eSIM for your next trip, Sim Local stands out as one of the most trusted and traveller-friendly providers on the market today.

Unlike many eSIM brands that offer only data, Sim Local partners with local networks, giving you the option to access calls, texts, and data. Perfect for those who want a more complete mobile experience abroad.

Why Travellers Love Sim Local:

• Unlimited data plans: With 10GB of high-speed data per day, it is ideal for remote workers, digital nomads, and anyone jumping on video calls or uploading content on the go
• Flexible plan types: Choose from destination-specific, regional, or global plans
• Includes local numbers in select destinations like the UK for texts and voice calls
• Instant activation via QR code, no contracts or hidden fees
• Accessible support via live chat, WhatsApp, phone, and email
• Physical store presence in major airports (unlike most eSIM-only providers)

Plus, they offer no-quibble refunds, a rare find in the eSIM space, so you can book with confidence even if your plans change.

As a City Nomads reader, you also get 5% off your Sim Local purchase when you use our exclusive affiliate link.

So whether you’re landing in Tokyo, surfing in Bali, or working remotely in the Alps, Sim Local keeps you connected with ease and flexibility.

Grab your eSIM from Sim Local and save 5%

Are There Any Downsides to Using eSIMs?

While eSIMs are incredibly convenient, they’re not flawless:

• Not all phones support eSIMs (especially budget or older models)
• Limited plans in some regions (e.g., rural areas may not have good eSIM coverage)
• No physical backup. If your phone dies, there’s no swapping SIMs for temporary use
• If your phone supports dual SIM, a hybrid setup may be ideal: one eSIM for data and one physical SIM for calls or local use.

Who Should Use eSIMs?

eSIMs are a perfect fit for:

• Digital nomads and remote workers
• Multi-country travellers or Eurail pass holders
• Business travellers needing fast, secure connectivity
• Eco-conscious travellers avoiding plastic SIMs
• Anyone tired of queuing at airport kiosks

If that sounds like you, making the switch to an eSIM could seriously upgrade your travel experience.

Final Thoughts

eSIMs are no longer a niche feature, they’re becoming the norm. With faster activation, flexible plans, and less waste, they offer a smarter solution for the connected traveller.

Whether you’re planning a beach escape, business trip, or slow travel adventure, having an eSIM on hand ensures your journey starts off connected, no matter where you land.

And remember, City Nomads readers get 5% off with Sim Local. Just use this link to start saving: Sim Local – Global eSIMs for Smart Travellers

Featured photo: Enrique Jiménez via Unsplash