Yamaha CVP-705 vs Yamaha PSR-S670

Yamaha CVP-705Yamaha PSR-S670
Key actionNWX (Natural Wood X) keyboard with synthetic ivory keytops (wood is used for the white keys), escapementOrgan, Initial Touch
Polyphony256128
Sounds / presets984416
Accompaniment styles—230
Sound engineYamaha CFX, Bösendorfer Imperial—
Speakers70 W30 W
USB audioYes—
Weight77.4 kg8.1 kg
Released20152015
Release month—7
Discontinued—2020
Statuslegacydiscontinued
Keys8861

Which one should you buy?

Full spec sheets: Yamaha CVP-705 · Yamaha PSR-S670. Rows with a highlighted background differ.