Model PSR-SX920 PSR-SX900 PSR-SX720 PSR-SX700
Controller Assignable Button 6 + 2 6 + 1 6 + 2 6 + 1
Joystick Yes (Assignable) Yes Yes (Assignable) Yes
Voice SA2 Voice Yes No No No
SA Voice (multiple articulation) Yes No Yes No
Mono/Poly Crossfade, Portamento, Legato Legato Crossfade, Portamento, Legato Legato
Octave -3 -0 +3 -1 -0 +1 -3 -0 +3 -1 -0 +1
Function Chord Looper Yes Yes Yes No
Style Dynamics Control Yes (via knob) Yes (via touch velocity) Yes (via knob) Yes (via touch velocity)
Style Style Section Change Timing Yes No Yes No
Time Signature per Style Section Yes No Yes No
Insertion Effect in Style 4 2 2 0
Memory Expansion Memory 2GB 1GB 1GB 400MB
Internal Memory 4GB 4GB 1GB 1GB
Connectivity Bluetooth Audio Yes Yes No No
Display Out Yes (via USB) Yes (via USB) No No
Sub Out Yes Yes No No
USB to Device Port 2 2 1 1
Vocal Harmony/Synth Vocoder Yes Yes No No
Speakers Speakers 13 cm x 2 + 2.5 cm (dome) x 2 13 cm x 2 + 2.5 cm (dome) x 2 13 cm x 2 + 5 cm x 2 13 cm x 2 + 5 cm x 2