You’ve probably heard that eSIMs are the future. Your iPhone or Android flagship supports them, travel blogs recommend them, and they promise to cut out the hassle of swapping plastic cards in airport arrivals halls. But if you’re planning a three-month stint in Spain, van-lifing across Europe, or bouncing between coworking spaces in Southeast Asia, the reality is more complicated than the hype suggests.

At ConnectPls, we ship portable WiFi devices, eSIM plans, and physical SIM-only subscriptions to digital nomads every week. We see what actually works—and what creates headaches—when people live and work remotely across borders. This guide walks through the real trade-offs between eSIM and physical SIM cards, includes a third option that often gets overlooked, and helps you pick the setup that fits your travel pattern and devices.

What You’re Actually Comparing

Before diving into pros and cons, let’s clarify what we’re talking about. An eSIM is a digital SIM embedded in your phone. You scan a QR code or download a profile, and your device connects to a mobile network—no physical card required. A physical SIM card is the traditional plastic chip you insert into your phone’s SIM tray. Both do the same job: authenticate your device on a mobile network so you can use data, make calls, and send texts.

The difference lies in flexibility, device compatibility, and how you manage connectivity when you’re moving between countries or need to share data across multiple devices.

“We managed to stay always connected while travelling around Europe, without having to buy SIM cards in every country and ending up with a handful of them with different balances we couldn’t use. Excellent support team.”
— Patrícia Reis de Magalhães, verified ConnectPls customer

When eSIMs Make Sense (and When They Don’t)

The Genuine Advantages

If you have a compatible phone and you’re taking a one- or two-week trip to a single country, eSIMs are hard to beat. You buy a plan online before you leave, activate it at the airport, and you’re connected within minutes. No hunting for a SIM vendor, no language barriers, no dealing with passport photocopies or local registration rules.

eSIMs also let you keep your home number active on a second SIM slot (if your phone supports dual SIM), so you can receive 2FA codes or calls from your bank without paying roaming fees on your primary line.

The Real Limitations Digital Nomads Hit

The problems start when your stay extends beyond a few weeks or you’re moving between countries regularly. Most eSIM providers sell country-specific or region-specific plans. Need data in Portugal, then France, then Germany? You’re buying and activating three separate eSIM profiles, keeping track of expiry dates, and dealing with three sets of support channels if something breaks.

Device compatibility is another friction point. Your phone might support eSIM, but your iPad, your partner’s older Android, or your backup laptop with a SIM slot probably don’t. If you’re working from a campervan in Spain or a month-long Airbnb in France and need to connect multiple devices, you’re either paying for multiple eSIM plans or falling back on tethering from your phone, which drains battery and burns through your data allowance faster than you expect.

And here’s the part that catches people out: eSIM plans often come with short validity windows. A 30-day eSIM expires in 30 days whether you used the data or not. If you’re splitting time between travel months and staying put with home WiFi, you’re paying for weeks you don’t need.

Physical SIM Cards: The Old Reliable with New Hassles

Physical SIM cards used to be the default. You’d land, find a mobile shop or vending machine, buy a local prepaid SIM, and swap it into your phone. You’d get local rates, often generous data allowances, and a local number for booking restaurants or taxis.

The advantage is still cost. Local SIMs in most countries offer better GB-per-euro than international eSIM plans, especially for stays longer than a month. In France, for example, a local carrier’s monthly SIM can give you 100GB+ for under €20, with no expiry pressure if you stay on the same network.

But physical SIMs come with their own baggage. Registration rules vary wildly: some countries require proof of address, others want a local bank account or ID beyond your passport. If you’re moving every few weeks, that’s a new SIM card, a new number, a new registration process, and a new stack of leftover plastic cards in your wallet. You also lose access to your home number unless you’re dual-SIM capable (and not all phones are).

The Option That Often Fits Better: Portable WiFi on a Flexible Subscription

This is where most digital nomads land after trying eSIMs or local SIMs for a few months: a portable WiFi device on a monthly subscription that works across the countries you actually visit, with no juggling of profiles or SIM cards.

ConnectPls operates exactly this model. The mobile router is included in your monthly plan and shipped to your door—2-3 working days across Europe, 4-5 in the UK. It arrives ready to use. The device uses Cloud SIM technology (it switches between local operators automatically) plus a backup physical SIM slot, so you have redundancy if one network has a weak signal in rural Portugal or a French mountain village.

The Plus Europe package is truly unlimited—no fair-usage throttling—across about 70 “Group 0” countries. That list includes the UK, Ireland, France, Germany, Spain, Italy, Portugal, the Netherlands, Nordics, Turkey, Canada, Mexico, Australia, and New Zealand. If you’re van-lifing from Spain to France, or doing a month in Portugal followed by a month in Germany, you don’t switch plans or touch settings. You just drive or fly, and the device reconnects automatically.

It connects up to 10 devices at once, so your laptop, phone, tablet, and your partner’s gear all share one data pool. Billing is monthly and flexible. You activate it for the months you travel and pause when you’re staying put. No long-term contract, and you can cancel anytime (there’s a £25 fee only if you cancel a mobile-router subscription within the first three months to cover shipping and return handling).

For countries like Japan, China, India, Singapore, Thailand, and the UAE, ConnectPls offers 4G unlimited but may slow after about 5GB per day. That’s enough for work, video calls, and evening streaming, but not for downloading 50GB of raw video files. Countries like Brazil, Egypt, and Morocco sit in “Group 2” with 500MB per day at 4G speeds, then 256kbps. That’s slower, but it’s explicit and predictable, which beats the surprise overage charges some eSIM providers slip into fine print.

Side-by-Side: How the Options Stack Up for Digital Nomads

Option	Best For	Typical Cost	Device Sharing	Multi-Country Coverage
eSIM	Short trips (1-2 weeks), single device, eSIM-compatible phone	€10-€40 for 1-4 weeks	Tethering only (drains battery)	Often country-specific; regional plans exist but expire fast
Physical SIM (local)	Long stays in one country, locals with address proof	€10-€25/month	Tethering only	Single country; new SIM each border
Home Carrier Roaming	Emergency backup, very short trips	€5-€15/day (adds up fast)	Tethering usually allowed	Broad but expensive for extended travel
Portable WiFi (subscription)	Digital nomads, van lifers, multiple devices, multi-country itineraries	Monthly subscription (varies by provider/region)	Up to 10 devices simultaneously	Automatic across 70+ countries (e.g. ConnectPls Group 0); consistent billing

How to Decide What Fits Your Situation

If you’re doing a city break in Barcelona, have an eSIM-compatible phone, and don’t mind tethering your laptop for a week, an eSIM is fast and cheap. Buy it before you fly, activate on landing, done.

If you’re settling in one city for three months (say, an Erasmus semester in Berlin or a winter in Lisbon), a local physical SIM is worth the registration hassle. You’ll get better data rates, a local number for deliveries and bookings, and you won’t worry about expiry dates.

But if your plan involves moving between countries every few weeks, working from a motorhome across France and Spain, splitting time between coworking spaces in multiple cities, or needing reliable connectivity for video calls without hunting for café WiFi, a portable WiFi subscription is the setup that removes friction. You’re not buying a new plan every border crossing, you’re not draining your phone battery with tethering, and you’re not guessing whether your eSIM profile will work in the next country.

ConnectPls serves exactly this pattern: the digital nomad who works a month in Portugal, drives to France, flies to Turkey, then spends a month back in Spain. The device works across all those countries without switching plans or touching settings. Billing is monthly, so you’re only paying for the months you’re actually traveling. You can order online, the device ships within 2-3 days across Europe, and if you hit a coverage question or need support while working from a Spanish mountain village, you’re talking to a UK-based team that responds in hours, not days. The company has a 5.0 Google rating, and travellers consistently mention the 24/7 support responsiveness.

What About Pocket WiFi Rental?

If you search “renting pocket WiFi in Japan” or “cheapest pocket WiFi Australia,” you’ll find traditional rental companies that charge daily rates. Those work for short holidays: rent the device at the airport, return it before you fly home. But daily rental fees add up fast over weeks or months, and you’re locked into pickup/return logistics.

A monthly subscription model flips that. You’re not renting by the day; you’re subscribing for as long as you need. For a van lifer spending six months touring Europe, or a remote worker doing consecutive three-month stints in different countries, monthly billing without a long-term contract avoids both the daily-rental cost trap and the surprise overage bills that some eSIM providers spring after you cross a “fair use” threshold buried in the terms.

FAQ

Can I use an eSIM and a physical SIM at the same time?

Yes, if your phone supports dual SIM (eSIM + physical SIM or dual eSIM). This setup lets you keep your home number active for calls and 2FA codes on one line while using a local or travel eSIM for data on the other. Just check your phone’s settings to make sure data is routed through the plan you want, or you might accidentally burn through expensive roaming on the wrong line.

Do portable WiFi devices work across Europe without changing settings?

Depends on the device’s technology. ConnectPls mobile routers use Cloud SIM, which automatically switches between local operators as you cross borders. The Plus Europe package covers about 70 “Group 0” countries (including the UK, France, Spain, Germany, Italy, Portugal, and the Nordics) with no manual switching, no SIM swaps, and no plan changes. You drive from France to Spain, and the device reconnects on its own.

Is it cheaper to buy local SIM cards in every country I visit?

Sometimes, if you’re staying in one country for months and have proof of address. But the cost isn’t just money—it’s the time spent finding a shop, dealing with registration rules, swapping cards, and losing your number every time you move. For digital nomads crossing borders every few weeks, the admin burden and lack of device sharing make local SIMs more expensive in time than a flexible multi-country subscription saves in cash.