The agony of Japanese phone OEMs

This chart, from JEITA, shows phone shipments from domestic Japanese manufacturers.  The series are cellular and PHS, the Japan-only limited mobility system. 

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Part of this collapse is  driven by migration away from domestic OEMs that were strong in featurephones to foreign smartphone makers, mainly Samsung and Apple. ​However, it seems to start too early for that to be the only explanation: there certainly weren't 20m iPhones and Androids sold in Japan in 2009. Other market dynamics at play (10 years ago I knew a lot about this market, but I haven't been paying close attention recently). Either way, the pain inflicted is pretty obvious. 

Source. ​

Benedict Evans