Japan is known for having one of the fastest and most reliable mobile internet networks in the world. This makes it easy for travelers to stay connected during their time in the country. However, navigating Japan’s complex mobile carrier options can be confusing for visitors. This article will break down the best ways for tourists to get mobile internet in Japan.
Japan has widespread 4G LTE coverage provided by multiple major carriers. 5G networks are also now available in all major cities and areas with further expansion ongoing. This gives visitors an excellent mobile internet experience across most of the country.
Japan boasts excellent mobile internet coverage with widespread 4G and growing 5G availability. Here’s a breakdown of the major operators and their coverage:
NTT DoCoMo: Widest 4G and 5G coverage, reaching even remote areas.
au (KDDI): Good balance of 4G and 5G coverage in urban and rural areas.
SoftBank: Extensive 4G and 5G coverage, particularly in urban areas.
Rakuten Mobile: Growing 4G and 5G networks, focusing on urban areas initially.
Recommendation:
Japan’s mobile internet speed presents a fascinating story of contrasts. While the country boasts some of the fastest mobile speeds in the world, particularly in its bustling metropolises, rural areas often lag significantly. Let’s dive into the details of mobile internet in Japan based on the Speedtest Global Index:
National Ranking:
Based on the Speedtest Global Index data for Japan:
So in summary, Rakuten Mobile provided the overall fastest speeds and most consistent performance on Japan’s mobile networks during Q4 2023 according to Speedtest Global Index data.
Visitors have 5 options for accessing mobile internet in Japan on their phones or other devices if they want to connect while touring the country.
| Option | How it Works | Cost | Where to Buy | Convenience | Pros | Cons |
| SIM Card | Replaces your current SIM card with a Japanese one. | Varies depending on data and duration (e.g., 3GB for 7 days: $30-$50) | Airports, convenience stores, online. | Requires switching SIM cards. | Affordable, good data options, works nationwide. | Can be inconvenient to switch cards, potential compatibility issues. |
| Japan eSIM | Virtual SIM downloaded to your phone. | Similar to physical SIM cards, but slightly cheaper. | Online only. | No physical card needed, easy to activate. | Convenient, affordable, works nationwide. | Requires compatible phone, limited availability compared to physical SIMs. |
| Roaming with Japan Operator | Use your existing phone plan in Japan with roaming charges. | Varies greatly depending on your operator and plan. | Not applicable. | No setup required. | Familiar plan, potentially works nationwide. | Expensive, data limits may apply, limited network coverage. |
| Public WiFi | Free Wi-Fi available in many public places (cafes, airports, train stations). | Free. | Widely available in major cities, limited in rural areas. | Free, convenient for light usage. | Free | Often slow, unreliable, limited security, may require registration. |
| Pocket WiFi | Portable device that creates a Wi-Fi hotspot for your devices. | Varies depending on data and duration (e.g., unlimited data for 7 days: $40-$70) | Airports, online, rental stores. | Connects multiple devices, convenient for group travel. | Unlimited data options, good for sharing, works nationwide. | Can be bulky, additional rental fee, battery life may be limited. |
For moderate data users who prioritize affordability and flexibility, SIM cards or eSIMs are good options. For tech-savvy travelers who value convenience, eSIMs might be the better choice.
Remember: Before purchasing a Japan SIM card, make sure your phone is unlocked. If you plan to use eSIM, check the eSIM Compatible Devices List.
According to Statista, the average cost of 1GB of data in Japan is US$3.85. This cost can vary depending on the network provider and the type of plan you choose.
A data SIM card is an excellent option for tourists to get mobile internet in Japan and in touch with loved ones back home. It offers flexibility, convenience, and often better value compared to roaming charges from your home carrier.
| Network | Price (USD) | Data | Validity |
| bMobile | ~US$13 | 5GB in LTE/3G | 10 days |
| ~US$20 | 7GB in LTE/3G | 21 days | |
| eConnect Japan | ~US$32 | 5GB in 4G/LTE/3G | 30 days |
| ~US$46 | 10GB in 4G/LTE/3G | 30 days | |
| IlJmio | ~US$13 | 1GB in 4G/LTE | 30 days |
| ~US$20 | 2GB in 4G/lTE | 3 months | |
| Sakura Mobile | ~$33 | Unlimited | 8 days |
| ~US$48 | Unlimited | 15 days | |
| ~US$67 | Unlimited | 30 days | |
| ~US$108 | Unlimited | 45 days | |
| ~US$119 | Unlimited | 60 days | |
| ~US$178 | Unlimited | 90 days |
These are just a few of the many data SIM card options available for tourists in Japan. Be sure to compare prices, data allowances, and validity periods before making a purchase. You can also find more information and purchase SIM cards online or at airports and convenience stores in Japan.
Using an eSIM is the most convenient way for travelers to get mobile internet in Japan. An eSIM provides data plans remotely with no physical SIM card required. This avoids SIM swapping and makes managing mobile internet simple across multiple destinations. Here are the two best options for getting an eSIM with Japan data for travel:
Major providers like Docomo and SoftBank offer prepaid eSIM plans for tourists.
Registration Process:
When you purchase an eSIM, you will need to provide your passport or ID card for registration. This is a requirement for all mobile phone services in Japan. The registration process can be done online or at a physical store.
Pros of buying from Japanese operators:
Cons of buying from Japanese operators:
By considering these factors, you can choose the best eSIM option for your travel needs and enjoy seamless mobile internet in Japan.
Gigago is a virtual eSIM provider, meaning you can purchase and activate eSIM online without needing to visit a physical store or show your passport. This can be convenient for travelers who want a hassle-free experience. Here’s what you need to know about buying a Japan eSIM from Gigago:
Pros of Buying from Gigago:
Things to Consider:
In summary, Gigago provides a hassle-free way for travelers to get mobile internet in Japan without needing to visit the country first. Our online-only purchasing process allows instant activation of an eSIM plan on a compatible phone from providers like KDDI. Just be sure to check phone compatibility and data limits beforehand to ensure a smooth virtual eSIM experience during your trip to Japan.
For short trips, purchasing an eSIM like GIGAGO provides the most convenience and flexibility. Data plans can be ordered online and activated remotely without swapping SIMs. Local SIM cards also work but require an in-person shop visit on arrival.
Average 4G LTE speeds range from 20-60 Mbps down while 5G exceeds 200 Mbps. This enables smooth HD video streaming and lag-free web use. Japan has some of the fastest mobile data speeds globally.
1GB of 4G data costs around 500-1000 yen. Unlimited data for a 2-week tourist stay can cost as low as 3500 yen. Japan has low rates compared to most other countries.
SIM cards are sold at electronics shops, airports, and other retailers in Japan. Major eSIM providers include GIGAGO for tourist plans ordered online. Purchasing in advance of arriving is recommended.
Yes, only unlocked devices can have a new SIM inserted and activated by a Japanese carrier. Confirm your device is unlocked before traveling to use a local SIM. iPhones in particular may be locked.
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