For Travelers Visiting Japan: Understanding eSIM Unlimited Plans

For Travelers Visiting Japan: Understanding eSIM Unlimited Plans

Updated: 2024-09-25 14:23:59

Many travelers visiting Japan are looking for an eSIM that allows them to stay connected. While some eSIM plans are labeled as "UNLIMITED PLANS," it is important to note that eSIMs offering unlimited high-speed data in Japan come with a Fair Usage Policy (FUP). This means that high-speed data is not entirely unlimited.

Before purchasing an unlimited eSIM plan, it's important to understand two key points:

At CDJapan Rental, we offer a variety of eSIMs for use in Japan. These are not roaming-based plans, so they are available at local Japanese prices, and they provide high-quality service using Japan's largest network, docomo. With large data plans, you won’t have to worry about running out of data during your stay in Japan. Feel free to take a look.
Best Japan eSIM Perfect for Tourists

1GB of Data Per Day is Often Sufficient

Many travelers seek eSIMs that offer unlimited data, but in reality, most people find that 1GB of data per day is more than enough for their smartphone needs. If you have an eSIM plan that allows around 2GB of data per day, most users will be able to enjoy data services without worrying about speed restrictions.

Why Japan Has a Fair Usage Policy (FUP)

1. To Maintain Network Stability

Telecommunication companies share a limited bandwidth among many users. If a small number of users were to consume a large amount of data continuously, it could slow down the network for others. The FUP is designed to prevent this from happening.

2. To Limit Heavy Users

Unlimited plans can easily become unfair due to the excessive data use of a small number of users. By limiting the speeds of users who exceed a certain data amount, telecom companies ensure a fair balance between heavy users and regular users.

3. To Keep Infrastructure Costs Manageable

Operating telecommunication infrastructure, such as base stations and networks, involves significant costs. If truly unlimited plans were offered, these costs would skyrocket due to the need for constant infrastructure upgrades and maintenance. The FUP helps to control excessive usage and manage costs.

4. To Provide Fair Service to All

The FUP ensures that all users can enjoy a stable and fair network environment. By applying speed limits to users who exceed certain data thresholds, other users can continue to enjoy a good quality of service.

5. To Prevent Illegal Use

Some heavy users consume large amounts of data for illegal downloads, streaming, or other commercial activities. The FUP is applied to discourage these behaviors and ensure the network is used responsibly.

Find the best eSIM Japan plans

eSIM 50GB / 16 days

50GB

Period:16 days

¥3900

Network : docomo

eSIM UNLIMITED data 31 days

UNLIMITED data

Period:31 days

¥7900

Network : docomo

eSIM UNLIMITED data 5 days

UNLIMITED data

Period:5 days

¥2800

Network : docomo

eSIM 50GB / 31 days

50GB

Period:31 days

¥4900

Network : docomo

See all Plans

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