Getting and staying connected abroad affordably is one of those 'small big things'.
Although it may feel like a detail, reliable internet that won't cost a fortune is the key to getting the best from any trip.
When it comes to deciding on how to do this, travellers face a range of options.
And one of the main questions is: Should they use eSIMs or portable WiFi devices?
eSIM vs Portable WiFi: A Guide for Travellers
Both options keep you online while travelling. But they work in different ways and suit different types of trips.
This guide breaks down costs, convenience and real-world performance to help you decide which works best for your trip.
What Is a Portable WiFi Device?
A portable WiFi device - also often called pocket WiFi, MiFi or a mobile hotspot - is like having your own personal internet bubble.
It's a small gadget that connects to local phone networks and enables your devices to access Wi-Fi.
Here's how portable WiFi works.
- The device usually has a physical SIM card inside. Or in some cases, a virtual SIM profile, that connects to local networks.
- It then creates a WiFi zone. This is usually about ten metres wide and supports five to ten devices.
- The battery of a portable Wi-Fi device typically lasts eight to fifteen hours, depending on the model.
How Much Does It Cost for a Portable Wi-Fi Device?
Plans vary, but some give you between one and five GB per day, while others offer 'unlimited' data.
Take note though - unlimited plans may reduce your speeds after a daily cap, which is often somewhere between one and five GB.
Pocket Wi-Fi devices are ideal for business travellers, families, and groups who want to avoid unreliable hotel or airport Wi-Fi.
Pros of Portable Wi-Fi
- Everyone can use it - One device connects phones, tablets and laptops, making it perfect for family and group travel.
- Simple to set up - No SIM card-swapping, just connect like you would to a regular Wi-Fi network.
- Some offer unlimited data - Great if you stream, video call or upload a lot on the go.
Things to Consider With Portable WiFi
- It's one more gadget to carry and charge - Add to this the risk of leaving it in a café.
- They can be expensive - Especially if you're renting one in the long-term or have to buy the device upfront as a one-off payment.
- They only work as well as the SIM inside - That means if your mobile provider's terms aren't great, you may get poor coverage or see your speeds throttled.
What Is an eSIM?
An eSIM, or an embedded SIM, is a digital SIM card that lives inside your phone - no tiny plastic cards required.
You activate it by scanning a QR code or using an app.
Wondering how do eSIMs work? You install a digital SIM profile on your device that gives you mobile data.
You can even have multiple eSIMs installed. So you can keep your UK number for calls and texts while using a travel eSIM for data.
Pros of eSIMs for Travel
- Instant setup - Buy an eSIM for travel and activate it in minutes using an app like Airalo.
- Usually cheaper than portable WiFi - A week of eSIM data can cost as little as £3.50.
- No extra devices - Nothing to carry, lose or charge.
- Perfect for solo travellers or digital nomads who only need data on one device.
- Shareable hotspot - Some eSIMs, such as those from Airalo, let you share data with other devices.
Things to Consider with eSIMs
- Your phone must support it - Most newer phones, e.g., iPhone XS onwards and many Android models, support eSIMs. Check your device's compatibility first.
- Just for one device - You can hotspot, but bear in mind that your battery will be under more strain. It's best to stay plugged in when hotspotting.
- Some plans have limits - Keep an eye on your data usage, although pay-as-you-go plans make it impossible to overspend unexpectedly. You're in control of what you spend on data and when.
eSIM vs Portable Wi-Fi - The Main Differences
Setup
- eSIM - Ready in minutes through an app
- Portable Wi-Fi - Rental, collection, setup
Extra Kit Needed?
- eSIM - None
- Portable Wi-Fi - Device, charger and possibly device cover/zip bag
How Many People Can Use It?
- eSIM - You can hotspot/tether, but watch battery and data use
- Portable Wi-Fi - Works well for groups
Battery Life
- eSIM - Just your phone
- Portable Wi-Fi - Needs charging
Risk of Losing It
- eSIM - Built into your phone
- Portable Wi-Fi - Standalone device, so it's possible to misplace it
Which Costs Less?
- eSIM - Usually cheaper, but cost vary by destination and data requirements
- Portable Wi-Fi - Often more expensive
Which Should You Choose?
- Solo travellers - eSIMs win for ease, price and setup.
- Families or groups - Portable Wi-Fi is solid, but travel eSIMs with hotspotting capabilities, such as Airalo, are closing the gap fast.
- Business travellers - eSIMs suit frequent flyers, as they require no rentals or returns.
- Going remote? - Coverage depends on networks. Global eSIMs like Airalo partner with local carriers to keep you connected. Check coverage by destination.
What Other Travellers Say
Portable Wi-Fi users often mention battery issues, dodgy rentals and hassle.
eSIM users love the convenience and simplicity - no kit, no queues.
The general feeling? Portable Wi-Fi has had its moment and eSIMs for travel are taking over.
FAQs
1. Is a portable Wi-Fi device better than eSIM for travel?
It depends. For solo travellers or couples, eSIMs usually win. Groups may still prefer portable Wi-Fi. Although hotspot-enabled eSIMs are catching up.
2. Can I use an eSIM and portable Wi-Fi at the same time?
Yes, some travellers do this for backup. For example, if you're working abroad as a digital nomad for a month or two, it's good to have options. But most people don't need both.
3. Which is Cheaper - eSIM or Portable Wi-Fi?
eSIMs are usually cheaper. A week might cost under £5. Portable WiFi rental is often double. Pricing depends on country and data needs.
5. Are eSIMs Safe and Reliable Abroad?
Yes - eSIMs use the same networks and encryption as traditional SIM cards. Stick with trusted providers like Airalo.
6. Do eSIMs Work In Rural or Remote Areas?
Yes, depending on the local carrier. Best global eSIMs like Airalo partner with multiple providers to improve coverage. Check signal availability here.
Ready to Try an eSIM?
Get your first eSIM from Airalo here - no waiting, no physical SIM card, no renting or buying extra devices. Just instant data wherever you're heading.
