5G mobile network
5G（第5世代移動通信） faibu-jī
The mobile generation designed for higher capacity, lower latency and many connected devices, deployed with several frequency bands and network architectures.
Low and mid-band 5G can provide broad coverage or added capacity; high-frequency 5G can be very fast over a short, clear path. The icon alone does not guarantee a particular speed, and indoor coverage may fall back to 4G.
A compatible phone, plan, SIM, carrier settings and local coverage are all required. Congestion, radio conditions, server speed and plan controls can still reduce actual performance.
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Related guides
3G mobile network3G（第3世代移動通信）surī-jī
An older mobile generation used for voice and low-speed data. Japanese carriers have retired or scheduled the retirement of their 3G services.
4G / LTE4G・LTE（第4世代移動通信）fō-jī / eru-tī-ī
The mature mobile generation that carries most everyday smartphone data and, with VoLTE, voice calls across broad coverage areas.
5G SA / Standalone5G SA（スタンドアローン）faibu-jī esu-ē
A 5G architecture using a 5G core network rather than relying on a 4G core and 4G control connection as non-standalone 5G does.
ADSLADSLē-dī-esu-eru
An older broadband technology that sends data over a copper telephone line. Major Japanese consumer ADSL services have ended or are being retired.
Analogue telephone lineアナログ回線・加入電話anarogu kaisen / kanyū denwa
A traditional fixed telephone access line using a local telephone number. The network behind it has been modernized, but existing analogue telephone services and rules still differ from fibre or mobile-based fixed phones.