Level-5 today announced the release date change of the Yo-kai Watch for Smartphone in Japan. The company planned to release the game in 2016 Autumn on iOS and Android in Japan but they changed it to 2017.
The new Yo-kai Watch for Smartphone going to be based on the original Nintendo 3DS game but comes with many new features which will be available only in this SP edition like the real time online play, HD graphics and more.
Level-5 going to release more details later in this year and hope we can get soon the official release date. The English version release is not announced.