Why use an eSIM instead of Wi-Fi while traveling?

Planning a trip abroad? Whether you're traveling for pleasure or business, alone or with friends, you'll need an internet connection to keep using your smartphone. Fortunately, there are many options to help you stay connected! From free hotel and restaurant Wi-Fi to public hotspots in train stations and airports, pocket Wi-Fi devices, or travel eSIMs—you’ve got choices. But one option clearly stands out as the most beneficial! Let’s explain why using an eSIM is better than relying on Wi-Fi during your travels.

How to access Wi-Fi when traveling abroad?

Nowadays, Wi-Fi is available almost everywhere—especially in places that cater to travelers. However, some networks are more reliable and faster than others.

Public Wi-Fi Hotspots

Public Wi-Fi networks are commonly offered in high-traffic areas like train stations, airports, and shopping malls. These networks usually don’t require any login credentials—just select the network from your phone or tablet settings. Anyone can connect to these networks. Typically, a login portal will automatically open in your browser for confirmation and to display the network's terms of use.

Secured Wi-Fi Networks

Beyond public networks, you’ll find places like hotels, restaurants, and cafés that offer Wi-Fi to their customers. These private networks require login credentials. You usually just need to ask the staff for the password (WEP or WPA). Some networks are hidden for extra security—staff will then provide both the network name and login details. In some cases, you’ll get a unique login through a web portal.

Pocket Wi-Fi

Pocket Wi-Fi is a small device containing a SIM card, which connects to a carrier's 4G or 5G network and creates a Wi-Fi hotspot that multiple users can connect to. It’s similar to your phone’s mobile hotspot feature.

Offered by internet and mobile operators as a backup when your home internet is down—or while traveling—it’s also a service provided by specialized companies that rent international pocket Wi-Fi to travelers.

Why choose an international eSIM when traveling abroad?

As mentioned, you can access Wi-Fi almost anywhere in the world—even in remote areas. So why bother with something like an eSIM, especially when there are so many free Wi-Fi networks? Here's why.

What is an eSIM?

An eSIM, or embedded SIM, is a virtual SIM card built into your device’s hardware (usually a smartphone). It replaces the need for a physical SIM and acts as a universal SIM that can be configured for any mobile network. You can load multiple eSIM profiles, allowing for up to two phone numbers and five data plans.

eSIMs enable you to instantly receive mobile plans remotely, without visiting a store or waiting for delivery. This technology is compatible with most smartphones released after 2020.

How does a travel eSIM work?

The rise of eSIMs has introduced travel eSIMs—international eSIMs that provide data bundles valid in specific countries or regions. Providers like UPeSIM have negotiated special rates in over 200 countries to help you save on roaming charges.

These eSIMs come with flexible durations and data allowances to suit different trip types. They connect you to a local operator's 3G or 4G network, giving you the same coverage as a regular customer.

Where to get a travel eSIM?

eSIMs are only available online—either via the provider’s website or mobile app. At UPeSIM, you can choose the method that works best for you. Once your subscription is confirmed, you can install and activate your virtual SIM in minutes for instant connection. It’s best to install it the day before or the day of your departure, so it connects as soon as you land!

Learn more: How to use an eSIM for international travel?

Why is eSIM better than hotspots or pocket Wi-Fi?

Now that we've explored the available options for getting internet during your trip, let’s weigh their pros and cons.

Public Wi-Fi Hotspots: Pros & Cons

Free Wi-Fi networks in places like train stations and airports don’t require login credentials and cost nothing—those are their only perks. They tend to be slow and unreliable, with low bandwidth. Streaming or social media usage can be frustrating. Most importantly, public networks are not secure, making them easy targets for cyber-attacks. Avoid using them for online purchases or banking!

Wi-Fi in hotels and cafés is more secure since access is limited to customers. However, caution is still necessary, as you never know who else is connected. Even if less crowded, these networks are still not as fast or stable as your home connection.

Pocket Wi-Fi: Pros & Cons

Pocket Wi-Fi offers a private network, reducing security risks. But they’re still visible to nearby users, meaning potential hackers might attempt access.

Another downside is the device itself—despite their compact size, you’re still carrying an extra gadget the entire trip. You also need to keep it charged. While better than public hotspots, pocket Wi-Fi is not the ideal travel solution.

eSIM: Pros & Cons

Travel eSIMs connect you to a local mobile network without needing a physical SIM or extra device. They combine the benefits of a local SIM and pocket Wi-Fi—without the drawbacks. You get private 4G or 5G access, safe app usage, and the ability to share your connection. With instant installation and activation, you’re online as soon as you step off the plane, no need to rent anything or wait at a hotel. It’s the most secure and flexible travel option!

Learn more: Pros and cons of eSIMs

Tips for optimizing eSIM and Wi-Fi use

To get the most out of your eSIM, follow these travel tips:

Save your data:

You may be using a lot of data in the background without realizing it. To avoid wasting your eSIM plan, switch on airplane mode when not actively using your phone.

Only use secure Wi-Fi networks:

You can save eSIM data by using Wi-Fi during your trip—but always opt for secure private networks (like those in private rentals) or password-protected ones (like hotels and restaurants). Using a VPN can add extra protection while connected.