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Information of Japan's Wi-Fi standards (protocols)
Japan's Wi-Fi standards (protocols)

July 2018

Japan's Wi-Fi is based on IEEEE's standards and specifications. Basically, there are six Wi-Fi standards (protocols) widely used in Japan. IEEE802.11a, IEEE802.11b, IEEE802.11g, IEEE802.11n, IEEE802.11ac, and IEEE802.11ad. 11ac is released in 2014 and is the most popular protocol in Japan now. The maximum data rate is 10 times as fast as 11n. It is ideal to use Wi-Fi routers and devices that are compatible with 11ac protocol in Japan these days.

Two frequencies are used by Japan's Wi-Fi routers and Wi-Fi enabled devices, 2.4GHz and 5GHz. 5GHz is faster and more immune to Wi-Fi interference as less devices use this frequency. But the higher frequency, 5GHz, tends to be blocked by buildings and other obstacles, thus 2.4GHz frequency has a wider wireless network area compared to 5GHz frequency. Japan's Wi-Fi routers are usually compatible with both frequencies to provide stable Wi-Fi connections.

Wi-Fi standards in Japan
# Protocol Frequency Max Data Rate Devices
1 IEEE802.11a 5GHz 54Mbps Android device, wireless lan adapter
2 IEEE802.11b 2.4GHz 11Mbps Nintendo 3DS, PSP
3 IEEE802.11g 2.4GHz 54Mbps iPhone3, PS3
4 IEEE802.11n 2.4GHz/5GHz 600Mbps iPhone4/4s/5/5s, PS Vita
5 IEEE802.11ac 5GHz 6900Mbps iPhone6, Nintendo Switch
6 IEEE802.11ad 60GHz 6800Mbps -

Internet Speeds by Internet Connection Types in Japan
Internet Speeds by Internet Connection Types in Japan

# Internet Connection Type Max Download Speeds
1 Fibre-optic connection Approx. 1Gbps
2 ADSL Approx. 25Mbps
3 Mobile Wi-Fi Router Approx. 800Mbps
4 4G Thethering Approx. 25Mbps
5 Cable TV Connection Approx. 300Mbps
6 ISDN Approx. 128kbps


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