For travelers and business people planning to visit Japan, choosing the right telecom service is crucial. Japan's telecom market is dominated by three giants: NTT DOCOMO, au KDDI, and SoftBank, each offering unique services and technological advantages. With the widespread adoption of eSIM technology, it has become more convenient for everyone to enjoy these services without needing to replace physical SIM cards to switch to local networks. In this article, we will detail the advantages of these three major telecom companies to help you find the most suitable telecom solution.
NTT DOCOMO - The Leader in Ubiquitous Signal Coverage
As a market leader in Japan, NTT DOCOMO offers extensive nationwide coverage. Its signal strength and reliability are unmatched in the industry. Similar to Chunghwa Telecom in Taiwan, DOCOMO has a long-standing history and is highly trusted by consumers, making it the best choice for those seeking stable communication services.
au KDDI - A Solid Choice with Comprehensive Strength
au KDDI is a telecommunications company formed by the large Japanese telecom entities KDDI and au. Despite some signal issues in certain indoor or remote areas, it ranks second in the Japanese telecommunications market, showcasing a strong market share and user base.
SoftBank - The Preferred Choice for Urban Travel
SoftBank is renowned for its high signal coverage in Japan's major urban areas, covering various business sectors including communications and technology. Although connectivity may fluctuate in mountainous and suburban areas, SoftBank maintains good service quality and technological innovation, making it suitable for people living or working in urban settings.
4G and 5G Coverage Comparison
In terms of 4G coverage, all three companies claim near-perfect 99.9% coverage, meaning users can enjoy high-quality connectivity regardless of their choice. In the deployment of 5G technology, SoftBank currently leads with over 90% population coverage, while DOCOMO and au are rapidly catching up, expected to achieve similar coverage in the coming years.
Actual Tests of Communication Speed and Connection Quality
According to actual user tests, NTT DOCOMO leads in download speed, reaching 153.68Mbps, far ahead of au's 75.99Mbps and SoftBank's 87.6Mbps. If you need to download large files quickly, DOCOMO might be the best choice. As for response speed, SoftBank has the fastest reaction time, which is a plus for applications requiring quick responses.
Why Choose Mango eSIM?
After understanding the service advantages of the main telecommunications companies in Japan, you might wonder how to find the best plan for you among these options. Actually, there's no need to worry about choosing a telecom company. Mango eSIM offers a simpler and more efficient solution for travelers and business people. Mango eSIM uses exclusive optimization technology to automatically connect to the local network with the strongest signal, ensuring stable and high-speed internet service whether you're in major cities like Tokyo and Osaka or traveling to remote areas. You can go online with simple phone settings, avoiding the hassle of changing physical SIM cards and saving time searching for SIM cards at airports or in the city.
Moreover, Mango eSIM offers flexible plans for both short-term travel and long-term business trips. For business people, Mango eSIM ensures that you won't be interrupted during important meetings and client communications; for travel enthusiasts, the constant internet connection allows you to easily check maps, book tickets, and share your travel moments. Therefore, choosing Mango eSIM not only saves you the hassle of selecting a telecom company but also ensures you enjoy the best internet service anywhere in Japan, making it the best choice for travel and business.
