What's the difference between the GDP 105 and the GDP 104?

The main differences between these two digital pianos are as follows:

Sound Features

• Timbre

• GDP - 105: It has 380 timbres.

• GDP - 104: It has 128 timbres.

• Demo Songs

• GDP - 105: There are 128 demo songs.

• GDP - 104: There are 20 demo songs.

• Built-in Speakers

• GDP - 105: It has two 20W stereo speakers.

• GDP - 104: It has two 10W speakers.

Storage

• GDP - 105: The storage type is RAM 64KB and FLASH 128M.

• GDP - 104: The storage type is described as internal (64M and 16M), which is less detailed compared to GDP - 105.