The Casio WK245 has 76 keys, and comes with a simple, step-by - step learning system as with the Yamaha PSR-EW300. The Casio has, however, a broader range of instrument voices, digital features and a much stronger on-board capability for recording, mixing and sampling a musician who wants not only to learn and record, to compose and to share his music.
Casio WK245 's benefits
All three are excellent choices for medium musicians, but it is useful to see if you play digital piano just for fun, or want to become a concert pianist or start your own band. Knowing your goals will allow an intermediate player to update the wireless keyboard.