Casio CDP S100 Review – Big Win?

CDP S100 Keys

Casio just announced their newest entry-level keyboard, the CDP S100. Designed to be slim and portable, yet affordable for beginners. I think this is unique in the sense that it has 88 keys, yet it can run on 6 AA batteries, giving you the freedom to play where you want. 

You can view the Casio CDPS – S150 below. It is currently on sale for $100 cheaper than its original price.

Note: If you are looking for quality, but still want to keep the price low, you should also check out the Roland FP-10. It’s similar to the CDP S100, but I enjoy it a little bit more. You can view it here on Amazon.

My overall opinion on the Casio CDP S100 is that is a nice choice for beginners. It’s not loaded with a lot of sounds, but it is more of a digital piano than a keyboard. Weighted keys and the portability it has to offer are it’s selling points. I have also been very open about Casio’s sounds getting better with every release and I believe the sounds are pretty good here as well for the money. Continue reading on to see my full thoughts.

Casio CDP S100 Break Down

CDP S100 Top View


The fully-weighted key-bed on the CDP S100 is one of its most important features. I am a big advocate for weighted keys with beginner students.

I believe digital pianos with weighted keys really help with your finger dexterity as your beginning to learn. Dexterity will take you a long way when you start getting into complex rhythmic patterns.

You can view our list of the best digital pianos in order to get a better feel for what to expect with this keyboard.

The keys are made of synthetic ebony and ivory and this has been a common theme here with newer keyboards.


Definitely a big selling point for this keyboard. It is extremely light and can be powered by 6 AA batteries. When I was younger and learning the piano, I wanted the freedom to take my keyboard outside and play. The problem was that I didn’t have the ability because I didn’t have power sources to make it happen.

Being able to power your keyboard with just batteries is a huge plus as it also has a power supply as well. You will run it off of batteries only in times where you can reach a power source. It can last 13 hours on battery life before having to buy new batteries.


The sound to me seems like some of the older Casio keyboards. Definitely, not my favorite sounds as I thought with their latest keyboards were making big improvements. This is geared towards the beginner and does have 88 fully weighted keys, so there is that.

However, I do think people are going to wish the sounds were a little bit better as this is going to be competing the ever-popular Yamaha P-45. They are similar in price, but it’s hard for me to not speak highly of the Yamaha P-45 in this case as I think it is a high-quality keyboard.

VS The Casio CDP S350

The CDP S350 is a step up on the overall sounds. I think the S350 is a better look at a digital piano, but it is also more expensive as well. Some of the things are similar, but the CDP S100 is the budget version of the CDP S350. Casio made all of their budget cuts for this keyboard in order to give a product that is entry-level, but still as high quality as they could.

Who Is This Keyboard For?

The CDP S-100 is definitely targeting a more beginner to intermediate crowd. It can be used by advanced players obviously, but that isn’t what the purpose of this was meant for.

If you’re someone who is looking to travel frequently and you just want a nice portable 88 key option, the CDP-S100 would meet your needs.

Having weighted keys is a huge plus for this price range. A lot of options don’t offer the weighted keys, so this is something that Casio stepped the bar up on.

I would say that this would make a great kids piano if you can afford it. I often urge students to go for digital pianos over traditional keyboards as I do believe they’ll get more out of them.

What Makes A Good Digital Piano?

In short, a digital piano is meant to emulate an acoustic piano to the best of its ability. Good digital pianos do this well in the sound department and the feel department.

Good digital pianos will have nice key-action, great sampled piano sounds, nice speakers, and a durable build.

With this being said, do I believe that the Casio CDP S100 meets this criterion?

Yes, I actually do. I believe this is at the lower end of digital pianos that I would recommend, however, that’s what its intentions are.


My thoughts on the Casio CPD S100 is that it is a good look at a portable digital piano. There aren’t a ton of portable options with 88 keys due to the weight, but this is one of them. You sacrifice a little bit in the sound department, but that is to be expected when paying such a small price.

I would recommend checking out my post on Yamaha keyboards that I recently did. I think they make some great digital pianos for beginners that you might want to look into.

I stated earlier that I think the best things about this keyboard are the sleek design, portability, and weighted keys. This keyboard gives you what you need for a beginner, but it’s not going to blow your gates down with its sounds.

Chordana is a cool feature it comes with as this is a good program for beginners. We are starting to see this program working with a lot of keyboards as it is a really good instructional program for all ages.

If you found this review helpful or have anything to add to it, let me know in the comments below!

  1. Thanks for the review Chris,

    I just bought a Casio cdp s100. I wanted to know if it’s normal for they keys to make noise when pressed. The noise distracts me from the actual Piano sound. The noise happens when any key is released.

    I’d appreciate your feedback,

    1. Some noise when playing on certain digital pianos is normal. It’s hard to say without hearing the noise that you’re saying. Do you hear this when you’re playing other digital pianos?

      1. Chris,
        Thanks for this useful review. I have the same concern with key sounds and it doesn’t bother at all with headphones on but one needs to ignore it when using built in speakers. This is my first ever keyboard, and my childhood piano casio SA65 didn’t have such key sounds.

  2. I am an adult beginner and this is my first piano. I’ve been playing for 1 yr and enjoying this keyboard very much until the keys started making a clunking sound that really detracts from my enjoyment. Can’t hear it with the headphones on but without them, it has become very distracting. The keyboard is always covered when not in use. I read other comments about noisy keys experienced with the Roland keyboard and that manufacturer suggested greasing the keys. Do you think this might also help with the Casio?

Leave a Reply

Your email address will not be published. Required fields are marked *

You May Also Like