Casio PX-S1100 vs Yamaha P-125
A current Casio slim-line against a discontinued Yamaha. Both are 88-key portables with USB audio, but the PX-S1100 is 0.6 kg lighter, has a 232 mm-deep chassis and adds Bluetooth, while the P-125 offers 24 voices against 18.
| Casio PX-S1100 | Yamaha P-125 | |
|---|---|---|
| Key action | Smart Scaled Hammer Action | Graded hammer standard (GHS) keyboard |
| Polyphony | 192 | 192 |
| Sounds / presets | 18 | 24 |
| Speakers | 16 W | 14 W |
| Bluetooth | Yes | No |
| USB audio | Yes | Yes |
| Weight | 11.2 kg | 11.8 kg |
| Released | 2021 | 2018 |
| Status | current | legacy |
| Keys | 88 | 88 |
| Category | digital-piano | — |
| Dimensions | 132.2 × 23.2 × 10.2 см | — |
| Power Consumption | 12V=10W | — |
Which one should you buy?
- Choose the Yamaha P-125 if budget is the priority — it is about $150 cheaper (approx.).
- Choose the Casio PX-S1100 if lighter to carry to gigs and lessons (11.2 kg vs 11.8 kg).
- Choose the Yamaha P-125 if you want more variety of built-in voices (18 vs 24).
- Choose the Casio PX-S1100 if you practise out loud without an amp (16 W vs 14 W).
- Choose the Casio PX-S1100 if you want wireless MIDI/audio from a phone or tablet.
Casio PX-S1100
The PX-S1100 is the current generation: Bluetooth plus USB audio, 11.2 kg and a chassis that fits almost anywhere.
Yamaha P-125
The P-125 makes sense only as used stock: 192-note polyphony, 24 voices and a confirmed USB audio interface, on the older GHS action.
Full spec sheets: Casio PX-S1100 · Yamaha P-125. Rows with a highlighted background differ.