UMOMO 88 Weighted Key Digital Piano with Duet vs Yamaha DGX-670B, 88-Key Weighted Digital Piano
Updated August 2026 — Yamaha DGX-670B, 88-Key Weighted Digital Piano leads on sound quality and key feel.
The Yamaha DGX-670B offers superior sound quality and features, making it the better choice for serious musicians, while the UMOMO is a solid budget option for beginners.
Why UMOMO 88 Weighted Key Digital Piano with Duet is better
Price
UMOMO is $350 cheaper than Yamaha
Portability
UMOMO is easier to transport and set up
Beginner-friendly
UMOMO includes demo songs for learning
Why Yamaha DGX-670B, 88-Key Weighted Digital Piano is better
Sound Quality
Yamaha features CFX Stereo Sampling for premium sound
Variety
Yamaha offers 630 instrument voices and 263 styles
Learning Tools
Yamaha has interactive learning features like Score Display
Overall score
Specifications
| Spec | UMOMO 88 Weighted Key Digital Piano with Duet | Yamaha DGX-670B, 88-Key Weighted Digital Piano |
|---|---|---|
| Weighted Keys | Yes | Yes |
| Demo Songs | 80 | None |
| USB MIDI | Yes | Yes |
| Headphone Jack | Yes | Yes |
| Microphone Jack | No | Yes |
Dimension comparison
Introduction to Digital Pianos
When comparing digital pianos, the user experience and features are crucial for both beginners and seasoned players. In this article, we’ll examine the UMOMO 88 Weighted Key Digital Piano with Duet Piano Bench and the Yamaha DGX-670B. The UMOMO is priced at $399.98, while the Yamaha comes in at $749.99, making the UMOMO about 47% cheaper than the Yamaha. Understanding the differences in features, usability, and sound quality will help you determine which piano suits your needs best.
Key Features
The UMOMO features 88 fully weighted hammer action keys, providing a realistic playing experience similar to an acoustic piano. It also boasts 80 demo songs, 128 tones, and a range of polyphony that allows for dynamic musical expression. In contrast, the Yamaha DGX-670B offers an impressive array of 630 instrument voices and 263 automatic accompaniment styles. This variety enables users to explore different musical genres and styles, enhancing creativity. While both instruments highlight weighted keys, the Yamaha provides a broader scope of sounds and styles for those looking to experiment with their music.
Sound Quality
Sound quality is a critical aspect of any digital piano. The UMOMO uses advanced sound sources to deliver rich and varied tones, making it suitable for beginners and casual players. However, the Yamaha DGX-670B excels in this area with its CFX Stereo Sampling, which replicates the sound of Yamaha’s flagship CFX Full Concert Grand piano. This feature delivers natural resonance and rich tones, making the Yamaha a better choice for those seeking premium sound quality. The UMOMO, while competent, may not match the depth and clarity that the Yamaha provides, especially in performance settings.
Usability and Controls
In terms of usability, the UMOMO includes a headphone jack for quiet practice, allowing players to enjoy their music without disturbing others. It also comes with a straightforward assembly process. The Yamaha DGX-670B similarly offers user-friendly features such as a built-in microphone jack and digital vocal effects, enhancing the overall playing experience. Additionally, its adaptability to playing intensity through automatic accompaniment styles adds a level of sophistication for performers. While both pianos are user-friendly, the Yamaha’s advanced controls may appeal more to those looking to engage with their music in a deeper way.
Portability and Setup
Portability can be a deciding factor for many musicians. The UMOMO is designed for easy assembly and does not require extensive setup, making it convenient for home use or transport. The Yamaha DGX-670B, while also manageable, is slightly bulkier due to its additional features and components, such as the music rest and sustain foot switch. If you plan on moving your piano frequently or have limited space, the UMOMO may be the more practical choice, given its simpler setup and lighter design.
Learning and Practice Features
For beginners, learning features can significantly impact the piano experience. The UMOMO includes 80 demo songs, which can aid in learning and provide inspiration for new players. On the other hand, the Yamaha DGX-670B offers the "You Are The Artist" library, which allows users to learn popular songs using best-selling sheet music. Additionally, its built-in Score Display helps users read music as they play, making it a more engaging learning tool. While both instruments provide valuable learning resources, the Yamaha's extensive library and interactive features make it particularly appealing for those serious about improving their skills.
Price Comparison
When it comes to price, the UMOMO is positioned at $399.98, making it a more budget-friendly choice compared to the Yamaha DGX-670B, which is priced at $749.99. This represents a $350 difference, or about 47% more for the Yamaha. For those just starting or looking for a decent digital piano without breaking the bank, the UMOMO offers solid value. However, the added features and superior sound quality of the Yamaha may justify the higher price for more experienced players or those who value advanced functionalities.
Customer Perception
Customer perception can also provide insight into the reliability and popularity of each product. The UMOMO holds a sales rank of 15,742, indicating a reasonable level of acceptance among users. In contrast, the Yamaha DGX-670B has a significantly better sales rank of 2,557, suggesting it is favored by a larger customer base. This difference may reflect the Yamaha’s reputation for quality and performance, especially among serious musicians who require more than just basic features.
Which should you buy?
Choosing between the UMOMO 88 Weighted Key Digital Piano and the Yamaha DGX-670B ultimately depends on your needs and budget. If you are a beginner or someone looking for a cost-effective option, the UMOMO provides a solid foundation with its weighted keys and essential features for $399.98. However, if you are seeking superior sound quality, a wider variety of instrument voices, and advanced learning tools, the Yamaha DGX-670B is worth the higher investment at $749.99. Each piano has its strengths, and understanding these differences will guide you to the right choice for your musical journey.

