How many GBs do I need for travel?

The most frequent question when buying an eSIM. If you go too low, you spend the end of the trip rationing data like water in the desert. If you go too high, you pay double per GB you'll never use. Here's the realistic calculation, based on how data actually gets used in 2026.

The simplified rule

For a normal tourist with average usage (Maps, WhatsApp, photos, social media, some Spotify on a hike):

0.5 to 1 GB per day.

For 7 days → 5 GB is enough. For 14 days → 10 GB. If you stream a lot or work remote: double it.

What apps actually consume (real numbers)

These are typical hourly consumption numbers, by travel-relevant activity:

Practical observation: 80% of your travel consumption is Maps + WhatsApp + social. If you want Netflix on the plane, download it at home.

Consumption by traveler type

The classic tourist (8-12 hours active per day)

• Maps in use 3-4 hours/day: 30 MB.
• WhatsApp active all day (messages): 30 MB.
• Instagram + TikTok 1 hour/day: 500 MB.
• Email + browsing: 100 MB.
• Photo upload to iCloud or Google: 100-200 MB.
• One video call with family (30 min): 250 MB.

Total: 800 MB - 1.2 GB / day. Times 7 days → 5-8 GB for a week.

The digital nomad (working 6-8 hours remotely)

• Slack, Notion, browsing: 200-400 MB.
• Zoom video calls (2-3 hours): 1.5-2 GB.
• Email + Drive: 100 MB.
• Rest of the day (tourism): 1 GB.

Total: 3-4 GB / day. For 7 days → 20-30 GB, unlimited or multiple reload-needed plans.

The backpacker (low usage, lots of Wi-Fi)

• Maps: 30 MB.
• WhatsApp: 30 MB.
• Booking, Hostelworld: 50 MB.
• Some Instagram: 100-200 MB.
• Rest: hostel Wi-Fi.

Total: 300-400 MB / day. For 14 days → 5 GB is plenty.

The vlogger / content creator

• Stories/reels upload: 1-2 GB / day.
• Cloud editing (CapCut, Lightroom): 500 MB.
• Streaming for inspiration or watching others: 1 GB.
• Other use: 1 GB.

Total: 3-5 GB / day. For one week → 20-30 GB or true unlimited.

What does NOT consume data (more than expected)

• Wi-Fi calls through your home carrier: 0 data (use hotel Wi-Fi).
• iMessage between iPhones: very little (compressed text).
• Background app refresh in modern OS: recent iOS and Android limit background usage to KB/day.
• Airplane mode + Wi-Fi: 0 cellular data. Useful during hotel Wi-Fi periods.

What DOES consume more than expected

• Autoplay videos on social (Instagram, X, TikTok). Enable "data saver" on each app.
• Apple Photos / Google Photos backup: if you upload high-quality, several GBs in a weekend trip. Set to "upload only on Wi-Fi".
• Maps Live View and satellite: 3-5x more than normal map mode.
• Spotify high-quality streaming: download playlists at home before traveling.

By destination: factors that change consumption

Countries where you spend LESS than expected:

• Countries with abundant free Wi-Fi (Japan, Singapore, South Korea).
• Resorts and cruises (hotel Wi-Fi always available).
• Trekking, nature, retreats (forced offline).

Countries where you spend MORE than expected:

• USA: constant Uber/Lyft, chain apps, uninterrupted coverage that invites use.
• Brazil/Mexico urban: WhatsApp is the only way to communicate with any service (taxis, restaurants, hotels).
• Countries with no Wi-Fi at modest hotels (some African nations, remote islands).

Reloadable plan vs big plan

Important decision: buy 10 GB up front, or 5 GB and reload if needed?

Reloadable is better if:

• You're not sure about consumption.
• Per-GB price is similar (it usually is).
• Your provider can reload in under 5 minutes (not all do).
• You want minimum surplus.

Big plan is better if:

• You know you'll use a lot (vlogging, nomad).
• The big plan has significant volume discount.
• You're heading to a country where reloads are slow or expensive.

At eSIM Ahora, every plan is reloadable and auto-recharge with 20% anti-price-spike protection is available so you don't get stranded at 3 AM in Bangkok.

Tricks to make GBs last longer

1. Download Google Maps offline before the trip. Saves 60% of Maps consumption.
2. Spotify and Netflix downloaded from home. Zero data in use.
3. WhatsApp → Settings → Storage and data → autodownload = never. Only over Wi-Fi.
4. Instagram → Settings → Cellular data usage → Use less data. Reduces auto-playing reels and stories.
5. iCloud Photos → Wi-Fi Only during the trip.
6. Enable iOS "Low Data Mode" (Settings → Cellular → your eSIM → Low Data Mode).
7. Disable background fetch for apps you don't use (Settings → General → Background App Refresh).

With those tweaks, an average traveler can drop from 1 GB/day to 400 MB/day with no felt difference.

Reference table

Recommendation: when in doubt, buy the medium plan for your duration and make sure it's reloadable. Going over costs lost money; coming up short costs 30 seconds and a few euros.

Conclusion

5-7 GB per week is where most travelers land. If you exceed it, it's usually photo uploads or long video calls — all controllable from settings. Buy reloadable, download what you can at home, and use hotel Wi-Fi for heavy stuff (uploading photos, watching Netflix in bed).

See eSIMs by destination →