How Much Data Do I Need for a Trip? A Realistic Guide
Wakavi Travel Team · Updated 4 Nov 2026 · 4 min read
How much mobile data you actually use abroad, by app and by trip length. Real numbers for Maps, WhatsApp, Instagram, Netflix and Spotify
How Much Data Do I Need for a Trip?
Most people buy too little data, run out on day four, then pay for a second plan. Or they panic and buy 50 GB for a weekend.
Here's how to get it roughly right.
What your apps actually use
These are rough numbers. Your real usage depends on video quality, your phone and how much you scroll.
| What you're doing | Roughly how much data |
|---|---|
| Google Maps navigation | A few MB per trip across town |
| WhatsApp messages and voice notes | Very little, a few MB a day for most people |
| WhatsApp video call | About 5 MB per minute, so around 300 MB an hour |
| Spotify, normal quality | About 43 MB an hour |
| Instagram (feed, stories, reels) | 500 MB to 1 GB an hour |
| Netflix on mobile, "Automatic" setting | About 1 GB per 4 hours |
| Netflix on high quality, HD | Up to 3 GB an hour |
The pattern is simple. Text, maps and music are cheap. Video is expensive. Instagram and TikTok count as video, because that's mostly what you're watching.
A simple way to estimate
Think about how you'll use your phone on a normal day away:
- Light: maps, messages, checking emails, booking a taxi. About 300 to 500 MB a day.
- Normal: all of that plus some Instagram, a couple of video calls, looking things up all day. About 1 GB a day.
- Heavy: lots of social media, uploading stories, hotspotting your laptop, streaming in the evening. 2 GB a day or more.
Multiply by the number of days, then add about 20% so you're not counting megabytes on the last day.
What that looks like by trip
| Trip | Light | Normal | Heavy |
|---|---|---|---|
| Weekend (3 days) | 1 to 2 GB | 3 GB | 5 to 10 GB |
| One week | 3 GB | 5 to 10 GB | 20 GB |
| Two weeks | 5 GB | 10 to 20 GB | 20 to 50 GB |
| A month | 10 GB | 20 to 30 GB | 50 GB or unlimited |
Bigger plans are usually cheaper per GB
This is the part most people miss. Small plans cost more per gigabyte.
Look at Japan on Wakavi right now: 1 GB for 7 days is $1.99. 10 GB for 30 days is $6.59. That's ten times the data for about three times the price. The 50 GB plan works out to $0.48 per GB.
So if you're stuck between two sizes, the bigger one is often the better deal. That's why every plan on Wakavi shows its price per GB.
What about unlimited?
If you're a heavy user, or you just don't want to think about it, Wakavi now has unlimited plans for most countries, priced per day.
They work a bit differently from what the name suggests. You pick a daily full speed allowance, anywhere from 500 MB to 10 GB depending on the country. Use it up and your speed drops for the rest of the day, but you're never cut off. Maps, messages and email still work fine at the slower speed. The allowance resets every day.
So the real question becomes how much you use in a day, not in a trip. Use the table above and divide by the number of days. Most people are fine with 1 GB a day. If you're streaming or working from a laptop on hotspot, go for 2 or 3 GB.
Ways to use less
- Download offline maps in Google Maps before you leave. Navigation then barely touches your data.
- Turn off auto-play video in Instagram and Facebook settings, or switch on their data saver modes.
- Download your shows and playlists on hotel Wi-Fi instead of streaming them on the bus.
- Turn off automatic photo backup (iCloud Photos, Google Photos) on mobile data. One day of holiday photos syncing in the background can eat a whole plan.
- Stop app updates on mobile data. Set them to Wi-Fi only.
What if I run out?
You can top up. Wakavi plans support top-ups, so you add more data to the same eSIM without installing anything new.
Short version
Normal user, one week: get 5 to 10 GB. Two weeks: 10 to 20 GB. If you live on Instagram, go bigger. And download your maps before you fly.