Casio PX-S1100 vs Yamaha P-145
A $799 slim-line Casio against a $599 entry Yamaha. The PX-S1100 doubles the P-145's polyphony and voice count and adds Bluetooth plus USB audio; the P-145 counters with Yamaha's newer GHC keyboard and a 100 g lighter body.
| Casio PX-S1100 | Yamaha P-145 | |
|---|---|---|
| Key action | Smart Scaled Hammer Action | Graded Hammer Compact (GHC) |
| Polyphony | 192 | 64 |
| Sounds / presets | 18 | 10 |
| Speakers | 16 W | 14 W |
| Bluetooth | Yes | No |
| USB audio | Yes | No |
| Weight | 11.2 kg | 11.1 kg |
| Released | 2021 | 2024 |
| Status | current | current |
| 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-145 if budget is the priority — it is about $200 cheaper (approx.).
- Choose the Yamaha P-145 if lighter to carry to gigs and lessons (11.2 kg vs 11.1 kg).
- Choose the Casio PX-S1100 if you layer sounds or use the sustain pedal heavily (192 vs 64).
- Choose the Casio PX-S1100 if you want more variety of built-in voices (18 vs 10).
- 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
Take the PX-S1100 for the 232 mm-deep chassis, 192-note polyphony, 18 sounds and both Bluetooth and USB audio.
Yamaha P-145
Take the P-145 if $599 is the ceiling and 10 sounds is enough - you give up polyphony and connectivity rather than portability.
Full spec sheets: Casio PX-S1100 · Yamaha P-145. Rows with a highlighted background differ.