When purchasing an eSIM for your trip to Japan, many may wonder, "Is 50GB enough?" "Will it last for a one-month stay?"
50GB is classified as a large capacity plan for travel eSIMs. It is recommended for those who want to use a wide range of services, not only Google Maps and LINE, but also posting photos and videos on social media, watching YouTube, and tethering.
In this article, we will explain in detail the number of days you can use 50GB, data usage by app, and recommended usage scenarios.

How many days can you use 50GB?
| Usage Style | Usage Estimate |
|---|---|
| Primarily Google Maps and LINE | More than 30 days |
| Using social media daily | 20 to 30 days |
| Watching YouTube | About 50 hours |
| Tethering | About 7 to 10 days |
If you primarily use Google Maps and LINE, there are cases where you can use 50GB for about a month. On the other hand, if you frequently watch videos or use tethering, data usage will increase significantly.
Data Usage by App
| App | Data Usage Estimate |
|---|---|
| Google Maps | About 5 to 10MB/hour |
| LINE | About 1 to 5MB/hour |
| About 100 to 300MB/hour | |
| YouTube (720p) | About 1GB/hour |
| TikTok | About 800MB to 1GB/hour |
Since Google Maps and LINE have low data usage, 50GB provides a lot of leeway. On the other hand, if you use high-quality videos or live streaming for long periods, data usage can increase rapidly, so caution is needed.

Recommended Usage Scenarios for 50GB
| Travel Style | Recommendation Level |
|---|---|
| 3 to 4 weeks of travel | ★★★★★ |
| Studying abroad / Working holiday | ★★★★★ |
| Long-term business trip | ★★★★★ |
| Video viewing / Social media posting | ★★★★★ |
| Tethering use | ★★★★☆ |
50GB is a recommended capacity for those staying in Japan for a long time, such as for 3 to 4 weeks of travel, studying abroad, long-term business trips, or working holidays.
Cases Where 50GB May Not Be Enough
- Watching 4K videos for long periods every day
- Using a laptop via tethering every day
- Conducting online meetings for several hours every day
- Backing up a large number of photos and videos to the cloud
- Sharing tethering among multiple people
If you frequently engage in such activities, it is safer to choose an unlimited plan.

Tips for Using 50GB for a Long Time
While 50GB is a large capacity plan, daily usage can accumulate during a long stay, so being mindful of data usage will provide additional peace of mind.
- Use Wi-Fi at hotels, schools, and offices
- Watch videos in a Wi-Fi environment
- Turn off automatic backup for photos and videos
- Update the OS and apps in a Wi-Fi environment
- Stop background data usage for unnecessary apps
50GB is generally sufficient for typical travel or long-term stays, but managing data usage is important if you watch a lot of videos or use tethering frequently.

Which should you choose: 30GB, 50GB, or Unlimited?
| Capacity | Recommended Usage |
|---|---|
| 30GB | 2 to 3 weeks of travel, primarily sightseeing |
| 50GB | 3 to 4 weeks of travel, studying abroad, business trips |
| Unlimited | If you watch videos, have online meetings, or use tethering daily |
50GB is sufficient for many travelers and long-term stayers. If you want to use data without worrying about limits, an unlimited plan is also an option.
Frequently Asked Questions
Is 50GB enough for a one-month stay in Japan?
If you primarily use Google Maps, LINE, and social media, 50GB is often sufficient.
How much video can I watch with 50GB?
At 720p quality, the estimate is about 50 hours. Using higher quality will increase data usage further.
Is 50GB enough for studying abroad or a working holiday?
If you can use Wi-Fi at school or home, it is often sufficient, but if you frequently watch videos or use tethering while out, an unlimited plan is recommended.
Can I use tethering with 50GB?
Yes. There are no issues with short to moderate usage. However, if you connect a laptop every day, be cautious as data usage will increase.
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 purchases are supported for long-term stays.
Which is better, 50GB or Unlimited?
For regular travel or long-term stays, 50GB is often sufficient, but if you watch videos or have online meetings daily, unlimited is recommended.
Is 50GB popular for travel to Japan?
Yes. It is a highly popular capacity for long-term travel, studying abroad, and long business trips.
Should I still save data with 50GB?
Yes. By utilizing Wi-Fi, you can use data more comfortably and reduce concerns about data limits.
Conclusion
50GB is a large capacity plan for eSIMs for travel to Japan. It can be used widely for long-term travel, studying abroad, and long business trips, including Google Maps, social media, and video viewing.
- Recommended for travel or long-term stays of about 3 to 4 weeks
- Suitable for studying abroad, working holidays, and business trips
- If you watch a lot of videos or use tethering, consider unlimited
- Utilizing Wi-Fi can enhance your experience
Choose the optimal data capacity eSIM based on your stay duration and usage style.