JR Central and JR West to upgrade Green car seats on Tokaido and Sanyo Shinkansen
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JR Central and JR West announced that Green car seats and equipment on the Tokaido and Sanyo Shinkansen will be upgraded, with sequential operation beginning after 15 December 2027.
Cars 8 and 9 will receive multifunction armrest seats with drink and smartphone holders, while car 10 will have partition seats designed for privacy. The upgrades apply to cars 8‑10 of the N700A and N700S series, except for N700A units scheduled for retirement within a few years. Each seat will feature improved cushioning, a large table stored in the armrest, a lift‑type footrest, and a recline angle changed from 123° to 116°.
On N700S cars 7‑10, vibration control devices will be improved to cut lateral sway by about 10 %, and car 9 will include a new powder corner with mirrors and a counter table. Communication systems and toilet facilities will be upgraded starting after 26 October 2026.