If you're planning a trip and are torn between an eSIM or pocket wifi, this comparison will clear things up for you in five minutes. Both give you internet abroad, but they work very differently: one lives inside your phone, and the other is a device you carry with you and needs charging. In this guide, we compare the price, convenience, battery life, and coverage of eSIM versus pocket wifi so you can choose based on your type of trip.
eSIM or pocket wifi: quick answer
For most travelers, the eSIM wins: it's cheaper, takes up no space, doesn't need charging or returning any device, and works as soon as you land. Pocket wifi only pays off if many people are traveling together, if you need to connect several devices simultaneously, or if your phone doesn't support eSIM.
That said, each option has its moment. Below, we look at what each is, how much they really cost, and in which specific scenarios one or the other is best. Let's start with the basics.
What each is
An eSIM is a digital SIM that is already integrated into your mobile phone. You buy a data plan online, receive a QR code, scan it, and that's it: you browse with a local line without a physical card. If you want more details, we have a step-by-step guide on what an eSIM is.
A pocket wifi (or portable wifi) is a small battery-powered router that creates a wifi network around you. It is rented or bought, carries its own data card, and several devices connect to it just like to home wifi. The typical model is the one rented at the airport in Japan and returned upon return. The fundamental difference is clear: the eSIM is inside the phone; the pocket wifi is a separate device that must be carried, charged, and often returned.
Direct comparison
This table summarizes the key differences between both options so you can see them at a glance:
| Aspect | eSIM | Pocket wifi |
|---|---|---|
| Format | Digital, inside the mobile phone | Separate physical device |
| Extra battery | No (uses phone's battery) | Yes, needs daily charging |
| Devices | 1 (or several via hotspot) | Several simultaneously (5-10) |
| Available upon landing | Yes, instantly | Pick up/return at counter |
| Price | Starting from a few euros per plan | Daily rental + deposit |
| Risk of loss | None | Return it or pay for it |
As you can see, the eSIM wins in almost everything except one thing: connecting many people simultaneously. That is the natural terrain of pocket wifi, and we will see more about it below.
Price: where the difference lies
Pocket wifi is paid for per day of rental, plus a deposit that is returned to you when you hand in the device. In destinations like Japan, it is a widespread model, but the daily cost adds up: on a two-week trip, it can be considerably more expensive than an equivalent data plan. And if you lose or damage it, you lose your deposit.
The eSIM is paid for once for the data plan, with no deposits or rentals. Plans start at a few euros, and you choose the GB you need. To know how much to take, see how much data you need for your trip. If you also compare eSIM with other alternatives, we have the guide on eSIM versus local prepaid SIM. For an individual traveler, eSIM is almost always cheaper.
A point to consider: with pocket wifi, you also pay for the days of picking up and returning the device, even if you don't use it entirely. With an eSIM, your plan starts counting when you decide to activate it.
Convenience, battery, and weight
Here, the eSIM has a huge advantage: you don't carry anything extra. There's no device that runs out of battery mid-afternoon, no cable to remember, and no extra router to put in your backpack. Your mobile phone is your connection, period.
Pocket wifi, on the other hand, is one more device that needs to be charged every day (its battery usually lasts a few hours of intense use) and, if it turns off, leaves the entire group without internet simultaneously. Also, if you leave the hotel and forget it, you're left without a connection. The eSIM is always with you because it's inside your phone. If you also want to compare with classic portable wifi, you have the guide eSIM versus portable wifi. Fewer things to charge and return means less that can go wrong.
When pocket wifi wins
Pocket wifi has its audience. It genuinely pays off in these cases:
- Group trips or large families: with a single device, you connect five or more devices and share the cost among everyone.
- Many devices per person: if you carry a laptop, tablet, and mobile phone all working simultaneously, a dedicated router is convenient.
- Phone without eSIM: if your phone is old and doesn't support eSIM, pocket wifi is a solution without changing devices.
Even so, for groups, there's also the option of an eSIM with a hotspot: one person shares their connection with the rest, as we explain in the guide on sharing data via hotspot. Before ruling out eSIM due to incompatibility, quickly check if your phone supports eSIM, because almost all recent models already do.
What to choose based on your trip
To summarize by profiles: if you travel alone or as a couple, eSIM is the most logical option for price and convenience. If you are a family of five with tablets and laptops, pocket wifi (or an eSIM with a hotspot) distributes better. If your phone does not support eSIM, pocket wifi solves the problem.
A special case is Japan, where pocket wifi is deeply ingrained by custom; even so, more and more travelers are opting for eSIM to avoid having to pick up or return anything. To choose the right plan size, review how much an eSIM consumes on a trip and calculate your GB with a margin.
Frequently asked questions
What is better, eSIM or pocket wifi?
For a solo traveler or a couple, the eSIM: cheaper, no device to charge, and available upon landing. Pocket wifi only wins if many people are traveling, you need to connect several devices at once, or your phone doesn't support eSIM.
Does pocket wifi drain the phone's battery?
No, it has its own battery, but that means it needs to be charged daily, and if it turns off, it leaves the entire group without internet. The eSIM uses the phone's battery, which is what you already carry and charge anyway.
How many people can connect to a pocket wifi?
It depends on the model, but typically between five and ten devices simultaneously. That's why it pays off for groups or families. With an eSIM, you can also share the connection via hotspot, although for many devices, pocket wifi is more flexible.
Does the eSIM work as soon as I land, and pocket wifi doesn't?
The eSIM does: you install it at home, and it connects when you land. Pocket wifi is usually picked up at an airport counter or received by courier, and you have to return it when you come back, which adds steps and time to the trip.
Is pocket wifi better in Japan?
In Japan, pocket wifi is very common due to custom, but it's not mandatory. Many travelers now prefer eSIM so they don't have to pick up or return the device or carry an extra battery every night.
Conclusion
eSIM is the most practical and cheapest option for most, while pocket wifi makes sense for large groups or phones without eSIM. Think about how many people you are and what devices you carry, and choose wisely. If you travel light, an eSIM will solve your connection without carrying anything extra. Compare all plans in our eSIM store and choose your next travel destination.
