Updated: 2025-02-03 11:59:13
For travelers visiting Japan, a stable internet connection is crucial. Particularly, Google Maps for navigation, translation apps, restaurant reviews, and online payments require smooth and reliable connectivity. However, internet speed varies depending on the location and the telecom provider within Japan. Checking the internet speed beforehand is useful for ensuring a smooth travel experience.
| Area | Possibility of Slow Speed | Reason |
|---|---|---|
| Urban Areas (Tokyo, Osaka) | △ (Depends on the time of day) | Network congestion during rush hours |
| Underground & Skyscrapers | ○ Likely to be slow | Weak signal reception |
| Mountainous & Rural Areas | ○ Likely to be slow | Limited telecom infrastructure |
| Shinkansen & Highways | △ (Depends on the location) | Unstable connection while moving |
Speedtest by Ookla
A globally renowned speed test app that provides detailed network data.
FAST Speed Test
Provided by Netflix, featuring a simple interface for quickly checking speed.
When using eSIM, it is important to check internet speed in real time and take necessary actions if needed. In Japan, internet speed varies depending on location and time of day, so utilizing speed test websites will help maintain a stable internet connection.
Even if your connection is stable in major cities like Tokyo and Osaka, you may experience difficulties in rural areas. If you plan to travel across various locations in Japan and are unsure whether your smartphone supports the necessary bands, consider renting a Portable Pocket WiFi.
