Why data needs vary so much
There is no single answer to how much data you need for travel because it depends on what you do with your phone, how long you travel, and whether you rely on Wi-Fi. Two travellers visiting the same country can use wildly different amounts — one might use 2 GB in a week for maps and WhatsApp, while another streams video every evening and burns through 15 GB.
The key is to think about your actual phone habits, not a generic number. If you mostly use maps, messaging and browsing, you need far less than someone who video-calls family every night or works remotely with a hotspot.
Typical data usage by traveller type
| Traveller type | Typical weekly use | Common activities |
|---|---|---|
| Light traveller | 1–3 GB / week | Google Maps, WhatsApp, email, restaurant searches, light browsing |
| Moderate traveller | 3–8 GB / week | Social media, maps, browser research, photo uploads, some video |
| Heavy traveller | 10 GB+ / week | Video streaming, video calls, hotspot for laptop, remote work, heavy social media |
These ranges are intentionally broad. Your actual usage depends on how often you are on Wi-Fi at hotels and cafes versus using mobile data.
How much data popular apps use
Understanding which apps consume the most data helps you estimate your needs more accurately:
- Google Maps: Navigation uses roughly 2–5 MB per hour. Downloading offline maps for a city uses 200–500 MB.
- WhatsApp: Text messages use almost nothing. Voice calls use around 0.5 MB/min. Video calls use 5–10 MB/min.
- Instagram: Browsing uses 1–3 MB/min. Uploading a photo uses 2–5 MB. Uploading a video uses 10–50 MB depending on length and quality.
- TikTok: Watching short videos uses 5–10 MB per minute, so an hour of scrolling can consume 300–600 MB.
- YouTube / Netflix: Standard definition streaming uses roughly 300 MB per hour. HD streaming uses 1–1.5 GB per hour. 4K uses 7+ GB per hour.
- Video calls (Zoom, FaceTime, WhatsApp): Typically 200–500 MB per hour depending on quality.
- Web browsing: Typically 50–100 MB per hour.
- Email: Minimal — a few MB per day unless you receive large attachments.
How to estimate your travel data needs
A practical approach:
- List your daily apps: Write down everything you expect to use daily — maps, messaging, social media, streaming, navigation, ride apps.
- Estimate daily hours: How many hours per day will you use each app on mobile data (not Wi-Fi)?
- Multiply by app data rates: Use the figures above to estimate daily consumption.
- Add a safety buffer: Multiply by 1.3–1.5 to account for unexpected use and variable quality.
- Multiply by trip days: Daily estimate × trip length = total estimated need.
For example, a 7-day trip with moderate use (maps, WhatsApp, Instagram, some browsing) might need 3–5 GB. A 14-day trip with video calls and hotspot use might need 15–20 GB.
Common mistakes travellers make
- Underestimating social media: Scrolling Instagram or TikTok for an hour can use 300–600 MB — more than many people expect.
- Forgetting about background apps: Cloud backups, photo sync and app updates can consume data silently. Disable background refresh while travelling.
- Assuming hotel Wi-Fi is reliable: Many hotels have slow or unreliable Wi-Fi, pushing you onto mobile data more than planned.
- Not accounting for hotspot use: Tethering a laptop or tablet can consume data much faster than phone-only use.
- Choosing the cheapest plan and running out: Running out of data abroad is stressful. A small safety buffer is usually worth the cost.
How BubuTel can help
If you are unsure whether 3 GB, 5 GB or 10 GB fits your trip, BubuTel AI can estimate a suitable available plan from your destination, trip duration and expected phone use. Instead of comparing a long list of packages, you answer a few quick questions about your travel habits and get a recommendation matched to your needs.
You can also browse destination-specific plans — for example, Portugal eSIM plans, Switzerland eSIM plans, or Spain eSIM plans — to see current options for your trip.
Frequently asked questions
Is 1 GB enough for a week of travel?
For very light use — maps, WhatsApp text messages and occasional browsing — 1 GB can last a week. But social media, photos or any video will push you over quickly.
Does Google Maps use a lot of data?
Navigation uses roughly 2–5 MB per hour. Downloading offline maps for a city uses 200–500 MB but saves data during your trip.
How much data does a video call use?
A video call typically uses 200–500 MB per hour depending on quality. A 30-minute call might use 100–250 MB.
Should I buy more data than I think I need?
A small safety buffer is usually wise. Running out of data abroad is inconvenient, and buying a top-up at the last minute can be more expensive than choosing a slightly larger plan upfront.