The short answer first. If you're travelling solo or as a pair on a short trip and your phone supports eSIM, an eSIM is the lighter, simpler choice — nothing to pick up, return, or keep charged. On the other hand, a pocket Wi-Fi rental tends to suit you better if you want to share one connection across a family or group, connect several devices including ones that don't support eSIM, or would rather not set things up yourself. Neither is universally "better" — the choice that goes smoothest depends on your group size, your devices, how much you want to carry, and your budget. Below we lay out six angles as neutrally as we can.
This article is part of our wider overview of staying connected abroad — see the guide to travel connectivity options (pillar article). If you'd like to compare not just Wi-Fi rentals but also local SIMs and more, it's worth a read alongside this one.
eSIM vs. pocket Wi-Fi rental: how they actually work
Both are ways to get your phone online while you're abroad, but they connect in completely different ways. Understanding the difference makes it much easier to tell which one fits you.
eSIM — a plan loaded onto your phone itself
An eSIM is a digital SIM built into your phone, onto which you load a travel data plan. You buy it online before you leave, set it up via a QR code or similar, and once you arrive you simply activate the line. There's no physical card to swap and no extra device to carry. The one catch is that it only works on compatible devices, so the first step is to check whether your phone supports eSIM. You can check eSIM device compatibility here.
Pocket Wi-Fi rental — a small router you borrow and carry
With a pocket Wi-Fi rental, you borrow a mobile Wi-Fi router (a small connectivity device) before your trip and switch it on once you arrive. The router picks up the mobile signal and connects your phone, laptop, and other devices over Wi-Fi. It works even if your device doesn't support eSIM, and a single router can be shared across several people and devices — that's its main strength. The trade-off is the pick-up and return process, plus keeping the router charged, carrying it around, and being careful not to lose it.
Comparing cost: which is cheaper?
"So which one actually costs less?" is probably the biggest question. Because the price depends on group size, number of days, data allowance, destination, and any current promotions, there's no single answer for which is cheaper. As a general pattern, though, it tends to break down like this.
- If you're travelling alone: an eSIM lets you buy data for just one person, so there's less likely to be anything wasted.
- If several people share one device: a pocket Wi-Fi rental's single fee can be split across the group, so the more people sharing, the lower the per-person cost tends to be.
- Extra costs that can creep in: a Wi-Fi rental may add a device-insurance option, fees tied to picking up or returning at an airport or counter, and late charges if you forget to return it on time. An eSIM avoids these device-related costs entirely.
eSIM pricing varies by destination, data allowance, and number of days, and the latest on-page figure is always the accurate one. Please check Bloomy's pricing in the table below (the most current rates as shown; confirm the price at the time of purchase).
[bloomy_price_table]
If you're unsure which plan fits, our eSIM comparison page lets you pick a country, data allowance, and number of days to find a plan that matches your itinerary. Pocket Wi-Fi rental prices vary between providers, so rather than quoting specific figures, we'd suggest comparing each service's latest quote directly (as of June 2026).
Comparing convenience and setup effort
Just as important as cost is the effort of preparation and return. In the busy stretch before and after a trip, it's easy to underestimate how much hassle is involved.
| Item | eSIM | Pocket Wi-Fi rental |
|---|---|---|
| Pick-up | Online purchase only — no shipping or in-store collection | Collected at an airport counter, store, or by delivery |
| Return | Not required | Required (mind the return deadline) |
| What to carry | Just your phone — nothing extra | The router plus its charging cable |
| Charging | Only your phone | The router needs charging too |
| Initial setup | You set it up yourself via QR code, etc. | Just switch it on and connect to Wi-Fi |
An eSIM means no extra baggage and nothing to return, but you do need to handle the initial setup yourself. If that part makes you uneasy, our eSIM setup guide walks through the steps — reviewing the flow in advance means no scrambling on the day. Conversely, if you'd rather avoid fiddling with settings altogether, a Wi-Fi rental that works the moment you power it on may simply feel easier.
Comparing multi-device use and sharing across people
If you want the whole family to use it, or to connect both a phone and a laptop, how easily it handles multiple connections becomes a deciding factor.
A Wi-Fi rental shares one device across many
A pocket Wi-Fi rental can connect multiple phones, laptops, and tablets to a single router at once. That suits family or group trips where everyone wants to share one connection. The catch is that everyone needs to stay near the same router — if people split up, some will be out of range. And the more devices you connect, the more it can affect speed and battery life.
An eSIM gives each person their own line and freedom to roam
An eSIM is generally one line per phone. Load an eSIM onto each family member's device and everyone stays connected even when they go their separate ways. Most phones also support tethering (sharing your phone's connection with another device), so you can temporarily connect a laptop through your own phone. That said, whether tethering is allowed and on what terms can vary by plan, so it's worth confirming before you buy.
Comparing speed, reliability, and battery
For both eSIM and Wi-Fi rental, connection speed and reliability depend on the local network, your coverage area, and congestion at different times of day — neither can be guaranteed to be faster. Real-world quality varies with the local network, your device, and your location. Here are the general points worth keeping in mind.
- Battery: with an eSIM you only have your phone's battery to think about, whereas with a Wi-Fi rental you also have to watch the router running flat. After a full day out and about, the router's charge can become a worry.
- Staying in range: with an eSIM your phone receives the signal directly, so it stays connected even in your pocket. With a Wi-Fi rental you drop out of range once you move away from the router.
- Loss or damage: losing or breaking a rental router can mean paying for it. With an eSIM there's no device to carry around, so that worry doesn't apply.
If you expect to use a lot of data, there are also unlimited-type eSIMs. Note that even "unlimited" plans may include a fair-use policy, reduced speeds after a certain amount of use, and tethering conditions, so it isn't truly limitless usage with no strings attached. If long video streaming or tethering matters to you, it's worth checking the unlimited plan terms before you buy (as of June 2026).
An important note: what about phone numbers, SMS, and calls?
One thing that's easy to overlook is how phone numbers and SMS are handled. Bloomy's data-only eSIM is, by design, for data communication only. It doesn't come with a local phone number, can't receive SMS (text message) verification codes, and doesn't support voice calls. The same is true of a Wi-Fi rental — both are centred on data.
Because of that, app-based calls and messaging through services like WhatsApp can often be used with either option, as long as you have a working data connection. However, if you need to receive SMS verification codes on a phone number for banking or other services, or you need to make voice calls to local phone numbers, do also consider other options — such as a setup that keeps your existing home number active, or a plan that includes a number. For more on how numbers and SMS work, our explainers on phone numbers and SMS may help.
Which one is right for you? Choosing by type
An eSIM suits you if
- You're on a short solo or two-person trip and want to travel light
- Your phone is an eSIM-compatible device
- You want to avoid the hassle of pick-up, return, and charging, plus the risk of losing a device
- You often split up and each want to stay connected on your own line
A pocket Wi-Fi rental suits you if
- You want a family or group to share a single connection
- You need to connect devices that don't support eSIM, or several laptops and tablets
- You're uneasy about setting things up yourself and just want to switch it on
- You plan to stay together as a group the whole time
Using both — or mixing and matching — is a real option too
You can also combine approaches: each person uses an eSIM, while only those doing a lot of laptop work add a separate Wi-Fi device. Depending on your itinerary and how many people you're travelling with, it can be smart not to force yourself into a single choice.
How to find the right eSIM with Bloomy
If an eSIM sounds like it might be right for you, start by checking whether your phone is compatible, then choose a plan to match your destination, data allowance, and number of days. Bloomy keeps the comparison flow and post-purchase support straightforward, so even first-timers are less likely to get stuck.
- Check compatible devices to confirm your phone can use an eSIM
- Use the eSIM comparison page to find a plan by country, allowance, and days
- After purchase, follow the setup guide to get everything ready before you depart
- If you can't connect once you're there, check what to do when you can't connect
You can check your eSIM's remaining data and QR code anytime in My Account. And if you'd like to compare connectivity options more broadly, take a look at our guide to staying connected abroad as well.
