Casio PX-870 Privia Digital Piano - Black Bundle vs UMOMO U-720 88 Key Digital Piano Keyboard with
Updated August 2026 — Casio PX-870 Privia Digital Piano - Black Bundle wins on accessories and features, UMOMO U-720 88 Key Digital Piano Keyboard with wins on connectivity.
The Casio PX-870 offers superior sound quality and features, making it the better choice for serious musicians, while the UMOMO U-720 is a budget-friendly option for beginners.
Why Casio PX-870 Privia Digital Piano - Black Bundle is better
Sound Quality
Casio has a superior sound projection system.
Features
Casio includes more advanced learning tools.
Build
Casio has a stylish design with a wooden cabinet.
Why UMOMO U-720 88 Key Digital Piano Keyboard with is better
Price
UMOMO is significantly cheaper.
Portability
UMOMO is easier to assemble and transport.
Tones
UMOMO offers more sound options.
Overall score
Specifications
| Spec | Casio PX-870 Privia Digital Piano - Black Bundle | UMOMO U-720 88 Key Digital Piano Keyboard with |
|---|---|---|
| Keys | 88 weighted | 88 standard |
| Sound Source | AiR | Standard |
| USB Connectivity | Yes | Yes |
| Learning Tools | 60 songs | 80 demo songs |
| Pedals | 3 | 3 |
Dimension comparison
Price Comparison
The Casio PX-870 Privia Digital Piano is priced at $899.00, while the UMOMO U-720 88 Key Digital Piano Keyboard is significantly cheaper at $329.98, making it about 63% less expensive. This drastic price difference might be a deciding factor for budget-conscious consumers looking for an entry-level digital piano. However, the higher price of the Casio model reflects its more advanced features and bundled accessories, which may appeal to serious musicians or those looking for a more comprehensive package.
Features Overview
In terms of features, the Casio PX-870 offers a more sophisticated experience with 88 scaled, weighted hammer-action keys and a powerful 4-speaker sound projection system. This model boasts 19 instrument tones and 256 notes of polyphony, allowing for intricate musical performances. On the other hand, the UMOMO U-720 includes 680 tones and 128 standard GM tones, but it has a lower polyphony of 128 notes. While the UMOMO provides more sound options, the superior key action and sound quality of the Casio make it a more appealing choice for serious players.
Sound Quality
Sound quality is a crucial aspect for digital pianos, and the Casio PX-870 excels in this area. It features an award-winning AiR Sound Source, which provides an authentic grand piano experience with detailed resonance. Its 40-watt, 4-speaker system envelops the listener with rich audio, making it ideal for performances. Conversely, the UMOMO U-720, while equipped with built-in stereo speakers, does not match the sound projection capabilities of the Casio. This may lead to a less immersive experience, particularly in larger spaces.
Build and Design
The Casio PX-870 features a stylish modern design with a wooden cabinet and a sliding key cover, making it an elegant addition to any room. It is available in multiple finishes, including black, oak, and white, to suit various décor styles. In contrast, the UMOMO U-720 has a more utilitarian design with a gray finish and a simple slide cover. While both models include a piano bench, the overall aesthetic and build quality of the Casio may be more appealing to those who prioritize design.
Learning and Practice Features
The Casio PX-870 is equipped with a variety of learning tools, including a built-in music library of 60 songs and the ability to record performances. It also features a duet mode, allowing teachers and students to play together easily. The UMOMO U-720 includes 80 demo songs and various functions such as sound recording and a split keyboard function, catering to beginners. While both models support learning, the Casio’s extensive features may provide a more comprehensive learning experience for serious students.
Portability and Connectivity
When it comes to portability, the UMOMO U-720 is designed with convenience in mind, making it easier to assemble and transport. It includes a USB/MIDI terminal for quick connections to computers and mobile devices, enhancing its versatility for music production and learning apps. The Casio PX-870, while also offering USB connectivity, is heavier and may not be as easy to move. However, its advanced features might justify the less portable design for those who plan to use it primarily at home.
Brand Reputation
Casio has a long-standing reputation in the digital piano market, particularly with its Privia line, which is known for quality and innovation. The Casio PX-870 ranks 13,806 in sales, indicating its popularity among consumers. UMOMO, while growing in recognition, is relatively less established, with a sales rank of 19,173. This difference in brand prestige may influence buyers who prefer a product from a well-known manufacturer with a proven track record.
Which should you buy?
Choosing between the Casio PX-870 and the UMOMO U-720 ultimately depends on your specific needs and budget. If you are seeking a high-quality digital piano with superior sound quality, advanced features, and a stylish design, the Casio PX-870 is worth the investment at $899.00. However, if you are a beginner on a budget or looking for a more straightforward option without the need for extensive features, the UMOMO U-720 at $329.98 is a solid choice.

