When purchasing an eSIM for your trip to Japan, many people wonder, "What GB should I choose?" "How many GB do I need for 3 days?" "Which is better, 5GB or 10GB?"
The required data capacity varies not only by the number of travel days but also by usage styles such as Google Maps, social media, and video streaming.
In this article, we will clearly explain the recommended eSIM data capacities for traveling in Japan based on the number of travel days, usage purposes, and capacities.
How many GB do you need for a trip to Japan? Quick Reference Table
| Number of Travel Days | Recommended Capacity |
|---|---|
| 2-3 days | 3GB |
| 4-5 days | 5GB |
| 6-7 days | 10GB |
| 10-14 days | 20GB |
| 21-30 days | 30GB-50GB |
The longer the travel days, the more data capacity you will need. Additionally, if you plan to watch videos or use tethering, it is advisable to choose a plan with more capacity for peace of mind.
Recommended Capacity by Usage Style
| Usage Style | Recommended Capacity |
|---|---|
| Google Maps & LINE Focus | 3-5GB |
| SNS & Photo Posting | 5-10GB |
| Video Streaming | 20GB or more |
| Long-term Travel or Business Trip | 30-50GB |
| Tethering | 50GB or Unlimited |
Estimated Data Usage by App
| App | Data Usage |
|---|---|
| Google Maps | About 5-10MB/hour |
| LINE | About 1-5MB/hour |
| About 100-300MB/hour | |
| YouTube | About 1GB/hour (720p) |
| TikTok | About 800MB-1GB/hour |
While Google Maps and LINE use relatively little data, video streaming consumes a lot of data even in a short time.
Tips for Saving Data Capacity
In Japan, you can enjoy a comfortable experience with less capacity by saving data.
- Use Wi-Fi at hotels and cafes
- Save Google Maps for offline use
- Watch videos in Wi-Fi environments
- Turn off automatic backup for photos and videos
- Stop background data usage for unnecessary apps
- Update OS and apps in Wi-Fi environments
By implementing these tips, you can significantly reduce your data usage during your trip.
Which Capacity Should You Choose?
| Capacity | Recommended Travel Style |
|---|---|
| 1GB | Airport, Transit, Half-day Use |
| 3GB | 2-3 Day Trip |
| 5GB | 3-5 Day Trip |
| 10GB | 5-7 Day Trip |
| 20GB | 10-14 Day Trip |
| 30-50GB | Traveling for more than 2 weeks or Long-term Stay |
| Unlimited | Video Streaming, Tethering, Work Use |
In addition to the number of travel days, consider the frequency of video streaming and SNS usage, and choose a plan with a little extra capacity for peace of mind.
Frequently Asked Questions
What GB is recommended for a trip to Japan?
For a 2-3 day trip, 3GB is recommended; for 4-5 days, 5GB; for a week, 10GB; and for two weeks, about 20GB.
Does Google Maps use a lot of data?
Google Maps uses relatively little data, so even if you use it for a long time during your trip, it won't be a significant burden.
If I use SNS every day, how many GB do I need?
If you use Instagram or TikTok daily, having 5GB-10GB or more is reassuring.
How many GB do I need for watching videos?
If you watch YouTube daily, 20GB or more is recommended, and if you use it for long periods, 30GB or unlimited is advisable.
What if I use tethering?
If you connect a laptop, 30GB or more is recommended, and if you use it daily for work, an unlimited plan is advisable.
What should I do if I run out of data?
There are products available for purchasing additional data. It is advisable to check in advance whether additional charges are supported.
Is an unlimited plan necessary?
It is often not necessary for general travel, but it is recommended for those who frequently watch videos, attend online meetings, or use tethering.
If I have Wi-Fi, is a smaller capacity okay?
Yes. If you can use Wi-Fi at hotels or cafes, you can significantly save on mobile data usage.
Conclusion
The required data capacity for a trip to Japan varies depending on the number of travel days and usage style.
- 3GB for a 2-3 day trip
- 5GB for a 4-5 day trip
- 10GB for a 5-7 day trip
- 20GB for a 10-14 day trip
- 30GB-50GB for long-term travel
- Unlimited is recommended for video and tethering
By choosing an eSIM that fits your travel style, you can enjoy a comfortable internet experience during your trip to Japan.
