Casio PX-870 Privia Digital Piano - Black Bundle vs MOSEN MUSIC MOSEN Beginner Digital Piano 88 Keys Weighted
Updated August 2026 — Casio PX-870 Privia Digital Piano - Black Bundle wins on sound quality and user experience, MOSEN MUSIC MOSEN Beginner Digital Piano 88 Keys Weighted wins on portability and value for money.
The Casio PX-870 offers superior sound quality and key action, making it the better choice for serious players, while the MOSEN is a great budget option for beginners.
Why Casio PX-870 Privia Digital Piano - Black Bundle is better
Sound Quality
Casio has advanced sound projection and resonance.
Key Action
Casio features superior weighted keys for realism.
Educational Features
Casio offers more comprehensive learning tools.
Why MOSEN MUSIC MOSEN Beginner Digital Piano 88 Keys Weighted is better
Price
MOSEN is significantly cheaper.
Portability
MOSEN is lightweight and easy to transport.
Beginner-Friendly
MOSEN includes lesson modes and demo songs.
Overall score
Specifications
| Spec | Casio PX-870 Privia Digital Piano - Black Bundle | MOSEN MUSIC MOSEN Beginner Digital Piano 88 Keys Weighted |
|---|---|---|
| Keys | 88 weighted | 88 weighted |
| Speakers | 4 speakers | 2 speakers |
| Polyphony | 256 notes | 128 notes |
| Demo Songs | 60 songs | 110 songs |
| USB Connectivity | Yes | Yes |
Dimension comparison
Price Comparison
The Casio PX-870 Privia Digital Piano is priced at $899.00, while the MOSEN Beginner Digital Piano costs significantly less at $249.99, making it about 72% cheaper than its counterpart. This substantial price difference may be a deciding factor for budget-conscious buyers looking for a quality instrument. While the Casio offers a premium experience with a comprehensive bundle that includes a furniture bench, headphones, and instructional materials, the MOSEN model provides an entry-level option that is well-suited for beginners without breaking the bank.
Sound Quality
When it comes to sound quality, the Casio PX-870 stands out with its advanced AiR Sound Source technology, offering a new four-layer stereo grand piano sound with detailed resonance. This allows for an incredibly rich audio experience, enhanced by its powerful 40-watt, 4-speaker system that creates an immersive listening environment. In contrast, the MOSEN Beginner Digital Piano features 128 high-quality tones but does not match the depth of sound projection offered by the Casio. While both instruments provide good audio quality, the Casio clearly excels in this area, making it ideal for those who prioritize sound fidelity in their playing experience.
Key Action and Feel
The Casio PX-870 features 88 scaled, weighted hammer-action keys with simulated ebony and ivory textures, offering an authentic piano feel that closely resembles that of an acoustic grand piano. This tri-sensor technology allows for a nuanced touch, catering to expressive performances. The MOSEN Beginner Digital Piano also has a full weighted 88-key keyboard with adjustable touch sensitivity, but it lacks the sophisticated key action of the Casio. For serious pianists or those seeking a more realistic playing experience, the Casio's key action is likely to be the more satisfying option.
Educational Features
For beginners, the MOSEN Beginner Digital Piano includes a lesson mode and 110 demo songs, making it easy for novices to learn and practice. The LCD display aids in displaying chords, simplifying the learning process. The Casio PX-870, while also suitable for educational purposes, offers additional features such as Duet Mode, which allows teachers and students to play together seamlessly. It also includes a built-in Music Library with 60 songs and recording capabilities. While both instruments cater to beginner needs, the Casio provides a more comprehensive set of tools for learning and practice.
Design and Aesthetics
In terms of aesthetics, the Casio PX-870 boasts a modern wooden cabinet design that includes a sliding key cover, making it an attractive addition to any room. It is available in black, oak, and white finishes, allowing for versatility in décor. The MOSEN Beginner Digital Piano features a portable design, constructed with lightweight ABS material, but it lacks the elegance of the Casio's furniture-like appearance. If visual appeal and aesthetic integration into your living space are important, the Casio clearly has the edge.
Portability
The MOSEN Beginner Digital Piano is designed for portability, making it easy to transport for lessons, performances, or practice sessions. Its lightweight construction and included X-shaped stand enhance its mobility, making it a practical choice for users who need to move their instrument frequently. The Casio PX-870, while not overly heavy, is more of a stationary instrument due to its furniture-style design. For musicians who prioritize portability and convenience, the MOSEN model is the better option.
Additional Features
The Casio PX-870 offers a range of advanced features including a USB connection for seamless integration with devices, making it easy to control settings and learn using apps. It also supports two headphone connections, which is ideal for paired practice. The MOSEN Beginner Digital Piano includes features like a triple sustain pedal and built-in recording capabilities, making it versatile for various playing styles. However, it does not match the technological integration and additional features that the Casio provides, which may appeal more to serious musicians.
Which should you buy?
Ultimately, the decision between the Casio PX-870 Privia Digital Piano and the MOSEN Beginner Digital Piano comes down to your personal needs and budget. If you are looking for a high-quality instrument with superior sound, key action, and a wealth of educational resources, the Casio PX-870 is worth the investment at $899.00. However, if you are a beginner seeking a more budget-friendly option that still delivers good sound quality and essential features, the MOSEN Beginner Digital Piano at $249.99 is an excellent choice. Each has its strengths, but for serious players, the Casio is the standout option.

