How Much Data Do You Actually Need on Vacation? A Practical Guide
2026-10-23 · Flylo
The most common mistake in buying travel data is overbuying "just in case." The second most common is the opposite — running dry on day three. Both are avoidable once you know what actually consumes data on a trip, which turns out to be a short list with one big item on it: video.
What uses data on a trip (and what barely does)
- Maps and navigation: surprisingly light. A full day of Google Maps directions uses a small fraction of a gigabyte, and you can download offline maps over Wi-Fi before you go, cutting it to nearly zero.
- Messaging: WhatsApp, iMessage, and similar apps use very little for text. Photos and especially videos sent through them add up faster than the messages themselves.
- Email and web browsing: light. Reading news, checking bookings, and translating menus all day still lands in the tens of megabytes for most people.
- Social media: the quiet budget-eater. Scrolling photo feeds is moderate; feeds that autoplay video behave like streaming, because that is what they are.
- Video streaming: the heavyweight, by far. Streaming video can use roughly 1 GB per hour at standard quality and several times that in HD. One movie streamed over mobile data can exceed everything else on your trip combined.
- Video calls: meaningful but manageable — a half-hour call is a few hundred megabytes at typical quality.
- Photo backups: automatic cloud uploads of a day's photos and videos can quietly consume a gigabyte or more. Set backups to Wi-Fi only before you leave.
Three traveler profiles, one week
The light traveler: 1–3 GB per week
You use maps, messaging, email, and the occasional search. Photos wait for hotel Wi-Fi. You are not streaming anything on mobile data. A small pack covers you comfortably — and honestly, most "light" travelers finish the week with data to spare.
The moderate traveler: 5–10 GB per week
The most common profile. Maps all day, restaurant hunting, social posting with photos, rideshares, the odd video call home, some music streaming. This is the band most week-long vacationers actually land in, which is why 10 GB packs valid for 30 days are a popular default: enough headroom that you stop thinking about it.
The heavy traveler: 15–20 GB or more per week
You stream video on trains, upload footage the same day, work remotely with video meetings, or share one connection by hotspotting to a laptop or a partner's phone. Size up, or plan on a top-up — and be honest with yourself, because this profile's usage is driven by habits, not destinations.
A word about hotel Wi-Fi
Free Wi-Fi sounds like the obvious way to save data, and it does help — download maps, playlists, and shows over breakfast Wi-Fi and your mobile data stretches much further. Two caveats. First, quality is unpredictable: plenty of hotel and café networks buckle in the evening exactly when you want them. Second, open networks are not private — anyone on the same network may be able to snoop. Avoid banking and sensitive logins on public Wi-Fi, or use a VPN if you must. Your own mobile data connection is both more reliable and more private, which is a practical argument for carrying enough of it rather than depending on café networks.
Check your own history before guessing
Your phone already knows how you use data. On iPhone, Settings → Cellular shows per-app data usage for the current period; on Android, Settings → Network & internet → Data usage does the same. If you took a similar trip recently, that per-app breakdown is a better sizing guide than any generic chart: look at what Maps, your browser, and your social apps actually consumed, scale it to your trip length, and add a little headroom for the days you are out sightseeing from morning to night.
If you run low anyway
It happens — an unplanned video upload, a kid with your phone, a day of hotspotting. The fix is a top-up, not a new plan: most Flylo packs can be topped up from your account in a couple of minutes, adding data to the same eSIM without reinstalling anything. Buying a pack you can top up beats buying a giant pack up front, because you only pay for the extra if you actually need it.
The simplest way to choose: find your destination on the destinations page, pick the profile above that matches how you really travel, and buy that size. If you are torn between two sizes, take the smaller one with top-up available — you can see every pack and its price in one place at flylo.co.