How much data to put on a travel eSIM
There is no single correct size for a travel eSIM. Match the allowance to the trip, then buy a size the destination actually sells. Maps, tickets, and light chat on a short break are a different purchase from photos, ride-hailing, and music. A laptop on a hotspot is a third purchase. One hourly chart cannot describe all three.
Google's own help page states that the Maps app uses the phone's data connection and that your mobile provider may charge for that use. Google does not publish an hourly figure there. An hourly total from another site is not a Google measurement.
Short trip
Maps, tickets, translation, and light chat. Start with the 1 GB to 3 GB plans if that destination sells them.
Photos and apps
Photos in chats, ride-hailing, music, and social apps. Look at 5 GB to 10 GB.
Laptop and calls
Laptop hotspot, video calls, and all-day navigation. Look at 20 GB and above, and remember hotspot uses the same pool.
Use the checks below before you open a product page. They do not estimate megabytes per hour. The only personal number is the one your phone already counted.
Not every country sells every size
Pick a size in five checks
- Write the countries and the number of days you will use mobile data, including a connection if you will open maps or mail there.
- On the phone, open the cellular data counter for a week that looked like this trip. iPhone: Settings, Cellular. Android: Settings, Network, Data usage. Menu names vary. That total is your floor, not a forecast.
- If the old week had no hotspot and this trip will share data with a laptop, or if you will add video calls, move up one band from the list above.
- Open the country or Europe page for the route. Buy the smallest listed size that covers your floor and whose validity is at least as long as the trip. A missing row is not sold for that destination.
- If the data line and the calendar do not match, the plan still ends on whichever limit arrives first. A 7-day plan ends during a month away even when gigabytes remain.
The product page is the catalog. This article only tells you which row to look for. It does not add a size the page does not list.
If the counter mixes unlike weeks, use the per-app lines on that screen instead of the grand total. If the total already sits near the top of a band, take the next size the destination lists.
Match the days as well as the data
The plan stops when the data is used up, and it stops on the last day even if gigabytes remain. Leftover data does not move to a later order. Extra days do not add gigabytes, and extra gigabytes do not add days. The period starts with the first data use in the booked area. Buying the plan and saving the QR code do not start it.
A 7-day plan finishes during a month away. Where a destination sells 90 or 180 days, read that validity on the product page before you choose it. The two limits are also on eSIM data and validity. A country plan covers one country. For several European countries, read the Europe eSIM countries guide, then check the list on the plan page.
sim.do plans are data only. Messengers, maps, and a hotspot share one pool, and the eSIM does not add a phone number. What stays on your other line is on dual SIM with an eSIM.
What makes a small plan disappear
Save offline maps before you leave Wi-Fi. That reduces what navigation needs later. Save tickets the same way. How much you save depends on the route.
Video and cloud photo backup are the usual reasons a small plan disappears. Set photo backup to Wi-Fi only before you leave, or the library can upload when the travel line connects. Streaming and video calls belong with the 20 GB plans and above.
A hotspot spends the same pool
There is no second quota for tethering. A laptop, a tablet, or another phone spends the plan you bought, so a hotspot day sits at 20 GB and above. Sharing steps are on the hotspot and data roaming page. Set the travel eSIM as the data line before you share, or the laptop uses the home contract.
When the allowance runs out
Check the phone counter on the travel line before you decide the package is empty. The sim.do display can lag behind the handset. If the data is gone and the period is still open, a top-up adds allowance to the same eSIM. Top-up is not on every plan. It stops when validity ends, and it does not create a new profile or a new QR code. The path is on the order, invoice, and top-up page, and the two limits are on the data and validity page. If this plan cannot be topped up, buy another listed plan on Wi-Fi.
Find a plan size
Sizes on the country page are the ones you can buy
Questions about travel eSIM data
How much data do I need for a week away?
Read a similar week on the phone, then use the matching band. Maps, tickets, translation, and light chat start at 1 GB to 3 GB when those plans are sold. Photos, ride-hailing, music, and social apps point to 5 GB to 10 GB. A laptop hotspot, video calls, or all-day navigation points to 20 GB and above. Check the length on that same country page.
Does Google publish an hourly figure for Maps?
No. Google's help page states that Maps uses the phone's data connection and that the carrier may charge. Google does not publish an hourly figure there. Offline maps saved on Wi-Fi before you leave reduce later navigation use.
Does a hotspot have its own allowance?
No. Shared traffic uses the same pool as the phone. Set the travel eSIM as the data line before you share, or the laptop uses the home contract. Steps are on the hotspot and data roaming page.
Can I top up if the data runs out before the days do?
Only on plans that offer top-up, and only while the period is still valid. Top-up is not on every plan. After validity ends, you buy a new plan. The path is on the order, invoice, and top-up page. Allowance and the period are explained on the data and validity page.
What if the country page skips 1 GB or 100 GB?
Buy a size that page lists. A missing row means that pair is not sold for that destination, even if 1, 3, 5, 10, 20, 50 or 100 GB appears somewhere else in the catalog.
