Casio PX 770 Vs Casio PX 870

When it comes to digital pianos, Casio has established itself as a leading brand in the market, offering a wide range of options for both professional and amateur musicians. The Casio PX 770 Vs Casio PX 870 are two of their cabinet models, both of which boast impressive features and capabilities.So what sets these two pianos apart, and which one is the right choice for you? In this article, we’ll take a comprehensive look at these pianos and explore the key differences.

In this comparison, we will talk about the following:

  • What are Casio PX 770 and PX 870
  • How is the Key Action of Casio PX 770 and PX 870
  • What are the Differences Between Casio PX 770 and PX 870
  • What are the Features of Casio PX 770 and PX 870
  • How is the Price of Casio PX 770 and PX 870
  • Casio PX 770 Vs PX 870
  • Which Piano to Buy
Casio PX 770 Casio PX 870
Product Dimensions11.77 x 54.53 x 31.42 inches
31.54 x 54.61 x 31.54 inches
Shipping Weight69.5 pounds
75.6 pounds
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About Casio PX 770 and Casio PX 870

The Casio PX 770 is a digital piano that is part of the company’s Privia line of instruments. It is a compact, portable, and affordable option for musicians of all skill levels, offering a full-size 88-key keyboard with weighted, hammer-action keys and multiple sound options, including grand pianos, electric pianos, organs, and more. It also has built-in speakers, USB connectivity, and the ability to record and play back performances. Additionally, the PX 770 offers various learning tools, such as lesson modes and a dual headphone output for quiet practice.

The Casio PX-870 is a high-end digital piano from the Privia series. It features a full-size, 88-key keyboard with a weight of the keys that mimic the feel of a traditional acoustic piano. The PX-870 has a multi-dimensional sound source, providing high-quality sound samples of a grand piano and various other instruments. It also includes various features for musical expression and connectivity, such as built-in speakers, a USB port for external devices, and the ability to play along with music from a smartphone or tablet. Read also: Casio PX 770 Vs Casio PX 780 here.

Casio PX 770 and PX 870 Key Action

The first thing to consider when comparing the Casio PX 770 and PX 870 is the key action. Both pianos and similar models on the collection use the same Tri-sensor Scaled Hammer Action with 88 keys. This technology uses real hammers to create the natural touch of playing a real piano. You can also adjust the sensitivity according to preference. Like a real piano, the key action makes the keyboard feel heavier on low register and lighter the more you move towards the other edge.

Key Differences between the Casio PX 770 and PX 870

The key difference between the PX 770 and PX 870 is their sound quality. These pianos are equipped with Casio’s Multi Dimensional Morphing AiR sound engine, which provides a rich and detailed sound, but the PX 870 takes it a step further with Damper Resonance, String Resonance, and Key on/off action, offering a truly immersive and authentic piano experience. This piano also has bigger speakers to deliver richer and more authentic piano sound.

When it comes to connectivity options, the PX 870 also has a slight advantage over the PX 770. While both models’ pianos are modern, only the PX 870 has the USB to Device port, allowing you to record the performances directly on a USB drive.

Casio PX 770 and PX 870 Features

Both the PX 770 and PX 870 come packed with a range of features that make playing and practicing easier and more enjoyable. Both pianos have a built-in metronome, a range of recording and playback functions, and a variety of preset songs to play along with. The PX 870 also has a few additional features, such as a USB audio recorder, bigger speakers, a lesson function, and a more advanced onboard sound system, but both pianos are highly capable and offer a wide range of features for players of all levels.

Casio PX 770 and PX 870 Price

The PX 870 is priced slightly higher than the PX 770, but both pianos are excellent value for money. The PX 770 is a great option for those who are looking for a high-quality digital piano at an affordable price, while the PX 870 is ideal for those who want a more advanced piano with additional features. Check our other comparison in: Casio PX 770 Vs Yamaha P125 here.

Which One is Right for You?

So which of these two pianos is the right choice for you? The answer to that question depends on your specific needs and preferences.If you’re a professional pianist looking for a digital piano that offers the most authentic playing experience, the Casio PX 870 is likely the better choice for you, thanks to its additional features and superior sound quality.

However, if you’re a casual or beginner pianist, or simply looking for a high-quality digital piano that offers excellent value for money, the Casio PX 770 may be the right choice for you. It offers many of the same features and capabilities as the PX 870, but at a more affordable price point.

- The Tri-Sensor Scaled Hammer Action II keyboard has an incredible feel and captures the dynamics of a performance with unparalleled speed and accuracy
- Includes a powerful stereo amplification system offering an optimal listening experience that is crystal-clear across the entire audio spectrum
- Duet Mode splits the piano into two equal pitch ranges, allowing a student and teacher to sit at the same instrument
- Concert Play allows you to play along with ten recordings of well-known orchestral pieces
- The PX-870 features a variety of 19 instrument Tones, with the ability to layer and split them as needed. Touch Response - 3 sensitivity levels, Off
- With a generous 256 notes of polyphony, you can rest assured that even the most complex performances will sound perfectly natural
- The Tri-Sensor Scaled Hammer Action II keyboard has an incredible feel and captures the dynamics of a performance with unparalleled speed and accuracy
- The powerful 40-watt, 4-speaker system is designed to envelop the listener, audience and room with rich, detailed sound


The Casio PX 770 and PX 870 are both exceptional digital pianos, each offering its own unique advantages and capabilities. The PX 770 should fit most people for being more affordable, sound good, play well and have all the essential features. But, the PX 870 can be the premium alternative for experienced  pianists and everyone who wants a more realistic digital piano.