smartphone

Japanese cellular carriers, Docomo, KDDI and Softbank plan to terminate 3G service. 3G termination affects not only for 3G users but also for others. This article explains who will be affected by 3G termination and what options the affected users should take.

How is the Rakuten Mobile's coverage area, plan and services ? How about types of smartphones to be used ? This articles describes what Rakuten Mobile has done for mobile services and been serving.

What is eSIM iPhone supports ? It would be benefit to understand eSIM mechanism and utilize eSIM wiht iPhone or a smartphone. This article describes basis of eSIM as well as benefit and future business expectation in Japan.