Short answer: The best eSIM setup for family travel is usually a data plan for each adult's phone, plus a smaller plan for any teenager who will go off on their own, all bought and installed at home before you leave. Younger children rarely need their own data if a parent's phone is nearby. Separate eSIMs avoid one person's streaming using up everyone's data, and they replace roaming charges that multiply quickly across a family.
Why roaming hurts more with a family
One person paying a daily roaming fee is annoying. Four people paying it for two weeks is a real part of the holiday budget, and it often arrives as a surprise. Teenagers who forget to turn off data roaming are the classic cause of a shock bill. Our guide to what roaming actually costs shows where the money goes.
A prepaid eSIM fixes the cost up front. When the data runs out, it stops, or you top up; there is no bill waiting at home.
Who in the family needs data?
- The adults: yes. Maps, bookings, transport apps, messages to the group and emergencies.
- Teenagers who will explore on their own, meet up with you later or take a different activity: yes, a small plan is enough for messaging and maps.
- Younger children who stay with a parent: usually not. Downloaded games and films on a tablet do the job without data.
- Tablets and watches: only if they will be used away from Wi-Fi. Many families skip them.
Before you buy, check every phone on our supported devices page. Children often have older or hand-me-down phones, and some older or budget models do not support eSIM.
How much data does each person need?
- Parents: 3–5 GB a week for maps, bookings, photos and messages; more if one of you works.
- Teenagers: 2–3 GB a week if social media is kept in check; more if they stream video.
- Younger children with their own phone: 1 GB a week for messaging and a location-sharing app.
The guide on how much eSIM data you need helps with the maths, and unlimited plans suit heavy users in destinations where they are offered.
Separate eSIMs or one shared plan?
Separate eSIMs are usually better for families:
- One person's streaming cannot drain everyone else's data
- Each phone has its own connection, so nobody needs to stay close to the "hotspot parent"
- If a teenager runs out, you top up only their plan
Sharing one phone's connection with others depends on the plan and the phone, and it drains the main phone's battery quickly. Treat it as a back-up, not the plan.
Setting up the whole family before you leave
- Check compatibility for every phone on the supported devices page, and make sure each one is unlocked.
- Buy one eSIM per phone for your destination. Our destination plans cover single countries and whole regions.
- Install each eSIM at home on Wi-Fi, with the line switched off. Do children's phones yourself, using the steps in how to install an eSIM.
- Label each eSIM in the phone's settings (for example "Holiday data") so nobody switches the wrong line.
- Turn off data roaming on everyone's home line before you leave home, and check it again on the plane.
- On arrival, turn on each eSIM line and data roaming for that line only.
Tip: set up a family group chat and location sharing before you travel. When a teenager is late to meet you at the museum, you will be glad it already works.
Keeping kids safe online abroad
- Use the phone's parental controls for screen time and content; they work the same abroad.
- Agree check-in times and a meeting point in case phones die.
- Write down a parent's number and the hotel address on paper in each child's bag.
- Keep power banks charged; maps and photos drain batteries quickly.
Common family mistakes
- One plan for everyone, then a teenager streams the data away on day two.
- Forgetting to check older phones for eSIM support until the night before.
- Leaving home-line roaming on on a child's phone.
- Installing at the airport with four phones and patchy Wi-Fi. Do it at home.
- Not packing chargers and power banks for every device.
If anything goes wrong on arrival, eSIM not working? Fix it in five minutes covers the usual causes.
Frequently asked questions
Does each family member need their own eSIM?
Each phone that needs data needs its own eSIM. Younger children who stay with a parent often do not need one at all.
Can children's phones use an eSIM?
Yes, if the phone supports eSIM and is unlocked. Check each model on the supported devices page before you buy.
Is it cheaper than roaming for a family?
Usually, yes. Roaming fees are charged per person per day, while a prepaid eSIM is a fixed price paid once per phone.
Can I share one eSIM's data with the family?
Sometimes, depending on the plan and phone, but it drains the main phone's battery and data quickly. Separate eSIMs are more reliable.
When should we install the family's eSIMs?
At home, on Wi-Fi, a few days before you leave, with the eSIM lines switched off until you land.