You're traveling with an eSIM and also want to connect your laptop or share data with your partner's phone: that's a hotspot. The good news is that sharing internet via hotspot with an eSIM works just like with a regular SIM, if the plan allows it. Here we explain how to activate it step-by-step and what to do when the hotspot isn't working.
Can you use a hotspot with an eSIM?
Yes. An eSIM shares internet via hotspot exactly the same way a physical SIM does: your phone creates a WiFi network and other devices connect to it. The only condition is that the data plan allows tethering (most do) and that you respect the "fair use" limit if it's an unlimited plan.
The hotspot is an operating system function, not a card function, so the eSIM doesn't change anything about the process. However, it's worth checking the fine print of the plan before buying: some unlimited plans cap or prohibit hotspots after a certain volume to prevent abuse. If you still have doubts about what this technology is and how it works, start with what an eSIM is and then come back here.
How to activate the hotspot step-by-step
Activating the hotspot with an eSIM takes less than a minute. In summary: you go into settings, activate the WiFi hotspot, choose the eSIM as the data source, and connect the other device with the password that appears. It's the same on iPhone and Android, with slightly different menu names.
Here are the specific steps:
- Make sure the eSIM's mobile data is activated and has coverage.
- On iPhone: Settings > Personal Hotspot > enable "Allow Others to Join". On Android: Settings > Connections > Hotspot/Tethering.
- If you have two lines, check that the hotspot is using the travel eSIM and not your Spanish line.
- Copy the network name and password, and connect from the other device.
A key detail: always verify which line is powering the hotspot when you have a dual SIM, because that's the most common mistake. If your phone doesn't have the eSIM installed yet, first check how to use WhatsApp with an eSIM to get your messaging ready.
Sharing with laptops, tablets, or TVs
The hotspot isn't just for another phone. You can give internet to your laptop to work from a cafe, to a tablet for the kids to watch something in the car, or even to a smart TV in a rented apartment that's out of WiFi. Each device connects to the WiFi network your phone creates as if it were a router.
There are three ways to share, and not all of them consume the same amount:
| Method | Range | Battery consumption | Best for |
|---|---|---|---|
| WiFi (portable hotspot) | Multiple devices | High | Laptop, tablet, TV |
| Bluetooth | 1 nearby device | Low | Occasional and light use |
| USB cable | 1 device | Charges the phone | Laptop on desk |
For connecting a laptop for a long time, a USB cable is best: it shares data and charges the phone at the same time. For a tablet or TV, the WiFi hotspot is convenient.
How much data sharing consumes
Here's the catch: when sharing via hotspot, connected devices consume YOUR data plan, and they usually consume more than a phone. A laptop downloads heavy updates, syncs to the cloud, and loads full desktop websites; a smart TV streaming in HD can eat up 3 GB per hour.
Before connecting your laptop, disable automatic Windows updates and cloud photo syncing: these are the two silent thieves that empty a data plan in an afternoon.
Therefore, if you're going to rely heavily on the hotspot, calculate extra GBs. For working with a laptop (email, browsing, some video calls) count 1-2 GB per day; for TV streaming, much more. If your idea is to depend on the hotspot as your primary connection at your destination, you might be interested in comparing it with other options in eSIM vs. portable WiFi, which analyzes exactly that scenario.
Hotspot not working: solutions
A hotspot with an eSIM not starting is more common than it seems, and it almost always has a quick fix. The number one cause is that the hotspot is drawing data from the wrong line (your Spanish SIM without roaming) instead of the travel eSIM.
Review this list if it fails you:
- Data source: confirm that the hotspot is using the active eSIM, not the other line.
- Mobile data and data roaming: these must be turned on for the eSIM.
- Fair use: if it's an unlimited plan, tethering may have been capped after a certain volume due to the fair use policy.
- Restart: turning your phone off and on and reactivating the hotspot solves most cases.
- APN: on some Android devices, you may need to enter the plan's APN manually.
If it still doesn't work after this, contact your eSIM provider's 24/7 Spanish support: in a chat, they can usually detect if the plan blocks the hotspot or if the APN needs to be configured. For more common issues, keep our guide to mobile hotspot abroad with eSIM handy.
Hotspot alternatives
The hotspot is convenient but it drains your battery and data plan. If there are several people or devices and usage is intensive, it sometimes pays for everyone to carry their own eSIM with a small plan, instead of straining a single phone that ends up hot and out of battery by midday.
Another alternative is a portable WiFi (pocket WiFi) if you are a large group and want a stable connection all day for many devices, although it involves carrying and returning a gadget. And for specific cases like a cruise, where the mobile hotspot doesn't get a signal on the open sea, there are specific solutions that we review in internet on a cruise with eSIM. Evaluate your situation: for a solo traveler or a couple with moderate use, a hotspot from an eSIM is almost always the simplest and cheapest option.
Frequently asked questions
Can I share internet via hotspot with an eSIM?
Yes, it works just like with a physical SIM: your phone creates a WiFi network and other devices connect. You just need the plan to allow tethering, which is common. For unlimited plans, check that they don't cap the hotspot after a certain volume due to fair use policy.
How do I share mobile internet with my computer using an eSIM?
Activate your eSIM's data, go to the WiFi hotspot or tethering function, and choose the eSIM as the source. Connect your laptop to that WiFi network using the password that appears, or use a USB cable to share and charge your phone at the same time. Done in a minute.
Why isn't my hotspot working with the eSIM?
The most common reason is that the hotspot is using the wrong line on a dual SIM phone. Check that the data source is the travel eSIM, that data and data roaming are active, restart your phone, and on Android, check the APN. Support can confirm if the plan blocks tethering.
Does sharing via hotspot drain more battery?
Yes, quite a lot: keeping the WiFi hotspot active consumes a lot of power. For occasional use and a single device, sharing via Bluetooth consumes less. If you connect your laptop for a long time, do it via USB cable: it shares data and charges your phone at the same time, so you don't get stranded in the afternoon.
Can I connect the smart TV in the apartment to my eSIM?
Yes, the TV connects to your WiFi hotspot like any device. Keep in mind that HD streaming consumes a lot (several GB per hour), so it's only a good idea if your plan has plenty of GBs. For binge-watching series, the accommodation's WiFi is better if available.
Conclusion
Sharing via hotspot with an eSIM is simple: activate the WiFi hotspot, confirm it's using the travel eSIM, and connect your laptop, tablet, or TV. Watch your consumption, as large devices quickly drain your plan, and keep the four troubleshooting tips handy. Choose a plan with plenty of GBs if you're going to share a lot and check out all our travel eSIMs to find the one that fits your itinerary.
