Casio PX-870 Privia Digital Piano - Black Bundle vs Donner DEP-1S Piano Keyboard 88 Keys, Beginner
Updated August 2026 — Casio PX-870 Privia Digital Piano - Black Bundle wins on bundle and sound quality, Donner DEP-1S Piano Keyboard 88 Keys, Beginner wins on connectivity.
The Casio PX-870 offers superior sound quality and features, making it the better choice for serious musicians, while the Donner DEP-1S is a budget-friendly option for beginners.
Why Casio PX-870 Privia Digital Piano - Black Bundle is better
Sound Quality
Casio has a 4-speaker system for immersive audio.
Key Action
Casio features 88 weighted keys for authentic feel.
Accessories
Casio includes a comprehensive bundle of accessories.
Why Donner DEP-1S Piano Keyboard 88 Keys, Beginner is better
Price
Donner is significantly cheaper at $185.99.
Beginner Kit
Donner includes essential learning accessories.
Bluetooth
Donner offers Bluetooth connectivity for modern use.
Overall score
Specifications
| Spec | Casio PX-870 Privia Digital Piano - Black Bundle | Donner DEP-1S Piano Keyboard 88 Keys, Beginner |
|---|---|---|
| Keys | 88 weighted | 88 velocity-sensitive |
| Speakers | 4 speakers | 2 speakers |
| Bluetooth | No | Yes |
| Polyphony | 256 | 128 |
| Included Accessories | Full bundle | Basic kit |
Dimension comparison
Price Comparison
The Casio PX-870 Privia Digital Piano is priced at $899.00, while the Donner DEP-1S Piano Keyboard is significantly cheaper at $185.99. This makes the Donner about 79% less expensive than the Casio. For beginners or those on a budget, the lower price point of the Donner might be particularly appealing, especially when considering additional costs like accessories and maintenance. However, the Casio’s higher price reflects its premium features and bundled accessories, which may justify the cost for serious players.
Sound Quality
When it comes to sound quality, the Casio PX-870 stands out with its new piano sound that boasts detailed resonance and 18 additional tones, providing an exceptional audio experience. The innovative 4-speaker sound projection system fills the room with rich, dynamic audio, mimicking the experience of playing a grand piano. On the other hand, the Donner DEP-1S offers authentic piano voices, but lacks the immersive sound projection of the Casio. While the Donner does provide a decent sound for beginners, it may not satisfy more advanced musicians seeking a realistic auditory experience.
Key Action and Feel
The Casio PX-870 features 88 scaled, weighted hammer-action keys with simulated ebony and ivory textures, delivering an authentic playing experience. It also includes adjustable touch sensitivity and hammer response, allowing customization for different playing styles. In contrast, the Donner DEP-1S has a 5-level velocity-sensitive keyboard, which is suitable for honing touch and technique but may not offer the same level of authenticity as the Casio’s tri-sensor action. For players who prioritize key action, the Casio is likely to provide a more satisfying experience.
Accessories Included
The Casio PX-870 comes as a complete bundle with essential accessories, including a furniture bench, headphones, an instructional book, online lessons, an instructional DVD, and a polishing cloth. This comprehensive package adds significant value to the purchase, making it ideal for beginners and advanced players alike. In comparison, the Donner DEP-1S also includes beginner-friendly accessories like stickers for learning, a sustain pedal, and an adjustable X-style stand. While it offers a solid starter kit, it lacks the extensive range of accessories provided with the Casio.
Connectivity Features
In terms of connectivity, the Casio PX-870 is designed to seamlessly connect to devices via class-compliant USB, making it compatible with PCs, Macs, and mobile devices without any additional drivers. This feature, combined with the ability to control settings through the Casio Music Space app, enhances the overall user experience. The Donner DEP-1S also caters to modern musicians with Bluetooth audio and MIDI capabilities, allowing for smartphone integration. While both instruments offer connectivity, the Casio’s more extensive options make it a better choice for those looking to integrate technology into their music practice.
Design and Aesthetics
The design of the Casio PX-870 is both stylish and modern, available in various finishes that can complement any décor. Its compact cabinet features a sliding key cover, adding to its elegance. The Donner DEP-1S, on the other hand, also has an aesthetically pleasing retro wood color that can suit home environments. While both pianos are visually appealing, the Casio’s premium design may appeal more to those looking for a sophisticated instrument that enhances their living space.
Target Audience
The Casio PX-870 is aimed at serious musicians and those looking for a piano that closely resembles a traditional grand piano experience, making it suitable for both home use and performance settings. Its features cater to a wide range of players, from beginners to advanced musicians. Conversely, the Donner DEP-1S is tailored for beginners, offering essential features and a user-friendly setup. This makes it a great entry-level option for those just starting their musical journey, but it may not meet the needs of more experienced players.
Which should you buy?
Ultimately, your choice between the Casio PX-870 and the Donner DEP-1S will depend on your specific needs and budget. If you are looking for a high-quality digital piano with exceptional sound, key action, and a comprehensive accessory bundle, the Casio PX-870 is worth the investment at $899. For budget-conscious beginners seeking a functional digital piano to learn on, the Donner DEP-1S at $185.99 offers great value. Consider what features are most important to you, and choose accordingly.

