Casio Casiotone CT-S1 61-Key Portable vs Casio CT-X700 61-Key Portable Keyboard (2026): Key Differences
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This comparison looks at the casio casiotone ct s1 61 key portable vs ct x700 61 key portable. Both models feature 61 touch-responsive keys and the AiX Sound Source for realistic tones. They share portable designs with optional battery power and USB-MIDI connectivity. The main difference lies in their sound libraries and learning tools. The CT-S1 focuses on compact portability and style, while the CT-X700 offers a larger preset selection and built-in lesson systems for practice.
Key differences
| Aspect | Casio Casiotone CT-S1 61-Key Keyboard | Casio CT-X700 61-Key Portable Keyboard |
|---|---|---|
| Preset Sounds | Not listed | 600 tones |
| Rhythms | Not listed | 195 rhythms |
| Learning Features | Not listed | Step-Up Lesson system, 100 songs, backlit display |
| Bluetooth | Optional adapter | Not listed |
| Dimensions | 36.6 x 10.2 x 3.26 inches | 37.3 x 13.8 x 4.29 inches |
| Weight | 9.92 pounds | 9.48 pounds |
Which one should you choose?
Choose Casio Casiotone CT-S1 61-Key Keyboard if
- You prioritize a slim, retro-style design for easy transport
- You want to use Bluetooth audio streaming with an optional adapter
- You prefer a lighter footprint for small spaces
Choose Casio CT-X700 61-Key Portable Keyboard if
- You need a large library of 600 tones and 195 rhythms
- You want built-in lessons and a backlit display for learning
- You prefer a slightly lighter unit at 9.48 pounds
Verdict: The CT-S1 suits players who value compact aesthetics and optional wireless connectivity. The CT-X700 is better for those who want extensive sounds and structured learning tools. Choose based on whether you prioritize portability or educational features.
CT-S1 vs CT-X700 Key Specs
portability and size
The Casio Casiotone CT-S1 measures 36.6 inches in length and weighs 9.92 pounds, making it slightly lighter and more compact than the CT-X700. The CT-X700 is 37.3 inches long and weighs 9.48 pounds. Both are portable, but the CT-S1 has a thinner profile at 3.26 inches high compared to the CT-X700’s 4.29 inches. The CT-S1 also includes strap pins for easy carrying, which the CT-X700 data does not list. If you prioritize minimal bulk and a vintage aesthetic, the CT-S1 offers a slimmer form factor.
sound variety and presets
The CT-X700 provides 600 preset tones and 195 rhythms, offering a much broader palette for exploration. The CT-S1 uses the same AiX Sound Source but does not list specific preset counts in its data, implying a more focused selection. The CT-X700’s extensive library includes everything from grand pianos to modern synths and global percussion styles. This variety supports diverse musical moods and performance needs. If you want immediate access to a wide range of sounds without searching through menus, the CT-X700 has a clear advantage in preset quantity.
learning and lesson tools
The CT-X700 features an integrated Step-Up Lesson system with a backlit display that shows proper fingering and notation. It also includes 100 built-in songs and a 6-track MIDI recorder for capturing and refining ideas. The CT-S1 data does not mention a lesson system, built-in songs, or a multi-track recorder, though it does include a metronome and recording function. The CT-X700’s display and structured lesson tools are designed to help players of all skill levels advance. If you are a beginner looking for guided practice, the CT-X700 provides essential educational features.
connectivity options
Both keyboards offer USB-MIDI connectivity for linking to computers and apps without drivers. The CT-S1 supports optional Bluetooth connectivity for streaming audio and app integration, a feature not listed for the CT-X700. The CT-X700 includes a built-in music rest and smartphone shelf for device placement, which the CT-S1 data does not mention. While both support wireless audio via the CT-S1’s adapter, the CT-X700’s physical holder is a practical addition for live use. The CT-S1 wins if you want native wireless capability, while the CT-X700 offers better device support.
audio and speaker system
The CT-S1 is equipped with bass-reflex stereo speakers and a Surround mode that creates an immersive 3D space. It also features EQ and virtual venues for sound customization. The CT-X700 data does not specify speaker type or surround modes, focusing instead on the clarity of the AiX Sound Source. The CT-S1’s audio features are designed for immediate sonic impact and spatial depth. If you prefer built-in spatial effects and equalization options for richer playback, the CT-S1 offers more detailed audio control features in its specification.
Which Casio 61-Key Keyboard Suits You
You want a lightweight, stylish portable instrument
The CT-S1 weighs 9.92 pounds and measures 36.6 inches long. Its bass-reflex stereo speakers and Surround mode create immersive sound. You get touch-responsive keys and an AiX Sound Source in a compact, retro-inspired body. This model prioritizes portability and elegant design for playing anywhere.
You need built-in lessons and many sounds
The CT-X700 offers 600 tones and 195 rhythms for diverse musical exploration. It includes a Step-Up Lesson system with a backlit display for fingering guidance. You also get 100 built-in songs and a 6-track MIDI recorder. This model focuses on education and sound variety.
You prefer a durable case and music rest
The CT-X700 features a durable molded case for everyday wear. It includes a built-in music rest and smartphone shelf for device support. You gain access to class-compliant USB-MIDI connectivity for seamless app integration. This setup is ideal for structured practice and stable performance environments.
The products compared
Casio Casiotone CT-S1 61-Key Keyboard
Best for: Travelers and beginners needing a compact 61-key keyboard
- Number of Keys
- 61
- Key Action
- Touch-responsive
- Sound Engine
- AiX Sound Source
- Preset Sounds
- 60
- Built-In Speakers
- Bass-reflex stereo
- Connectivity
- USB-MIDI, Bluetooth (optional)
View on Amazon: Casio Casiotone CT-S1 61-Key Keyboard Affiliate link
The Casio CT-S1 is a 61-key portable keyboard with a retro design. It uses an AiX Sound Source and touch-responsive keys for dynamic play. Bass-reflex stereo speakers provide clear sound, and you can add Bluetooth via an optional adapter. It weighs 9.92 pounds and offers USB-MIDI connectivity. This model suits players who value portability and a compact footprint for practice or travel.
Pros
- AiX Sound Source delivers dynamic tones.
- Touch-responsive 61 full-size keys.
- Bass-reflex stereo speakers for clear audio.
- Optional battery power for portability.
Cons
- Only 61 keys, limiting range.
- Bluetooth requires an optional adapter.
- No built-in display for settings.
Good fit if
- You need a lightweight keyboard for travel.
- You prefer a compact 61-key layout.
- You want touch-responsive keys for expression.
Skip if
- You require a full 88-key piano action.
- You need built-in Bluetooth without extra parts.
- You want a large built-in display.
Verdict: Casio CT-S1 61-Key Portable Keyboard offers a lightweight, retro-style option with AiX sound. It fits players prioritizing portability and touch-sensitive keys over extended range.
Casio CT-X700 61-Key Portable Keyboard
Best for: Portable practice and digital connectivity
- Number of Keys
- 61
- Sound Engine
- AiX
- Preset Sounds
- 600
- Connectivity
- USB-MIDI
- Power Source
- Optional battery
- Form Factor
- Portable
View on Amazon: Casio CT-X700 61-Key Portable Keyboard Affiliate link
The Casio CT-X700 is a 61-key portable keyboard featuring the AiX Sound Source for realistic audio. It includes 600 tones, 195 rhythms, and 100 built-in songs. The unit weighs 9.48 pounds and offers USB-MIDI connectivity for easy connection to computers and mobile devices. It suits players who need a lightweight, feature-rich instrument for practice or small performances.
Pros
- 600 preset tones and 195 rhythms
- AiX Sound Source for audio clarity
- 100 built-in songs with lesson system
- USB-MIDI connectivity for devices
- Lightweight at 9.48 pounds
Cons
- 61 keys limit range compared to 88-key models
- No Bluetooth audio or wireless connectivity listed
- Battery power is optional, not included
Good fit if
- You need a lightweight keyboard for travel
- You want extensive tone variety for practice
- You plan to connect to a computer via USB
Skip if
- You require a full 88-key piano action
- You need built-in wireless Bluetooth connectivity
- You want included battery power for portability
Verdict: Casio CT-X700 61-Key Portable is a practical choice for beginners and intermediate players seeking a wide range of sounds and easy digital connectivity in a light, travel-friendly body. It fits musicians who prioritize tone variety and portability over weighted keys.
Specifications side by side
| Spec | Casio Casiotone CT-S1 61-Key Keyboard | Casio CT-X700 61-Key Portable Keyboard |
|---|---|---|
| Number of Keys | 61 | 61 |
| Key Action | Touch-responsive | not stated |
| Sound Engine | AiX Sound Source | AiX |
| Preset Sounds | 60 | 600 |
| Built-In Speakers | Bass-reflex stereo | not stated |
| Connectivity | USB-MIDI, Bluetooth (optional) | USB-MIDI |
| Power Source | Battery (optional) | Optional battery |
| Form Factor | Portable | Portable |
| Color | Red | Black |
| Dimensions | 36.6 × 10.2 × 3.26 inches | 13.8 × 37.3 × 4.29 inches |
| Weight | 9.92 pounds | 9.48 pounds |
| Size | 61 Keys | Full |
| Model | CT-S1RD | CTX700 |
Frequently asked questions
Which Casio keyboard is better for travel?
The CT-S1 is the better choice for travelers who prioritize minimal bulk. It measures 36.6 inches in length and weighs 9.92 pounds. The CT-X700 is slightly larger at 37.3 inches long and weighs 9.48 pounds. While both are portable, the CT-S1’s compact footprint makes it easier to fit into smaller bags or tight spaces during transit.
Do both models have touch-sensitive keys?
Yes, both the CT-S1 and CT-X700 feature touch-sensitive keys. This means the volume changes based on how hard you press the keys. This feature allows for dynamic expression, letting you play softly or loudly to add emotion to your performance. Both instruments use the AiX Sound Source to deliver realistic tones that respond to your touch.
What colors are available for these keyboards?
The CT-S1 is available in a Red finish. The CT-X700 comes in Black. Your choice may depend on your personal aesthetic preference or how well the color matches your existing equipment. Both models maintain a portable form factor regardless of the color option you select for your setup.
Can I use these keyboards with a computer?
Yes, both models support USB-MIDI connectivity. This allows you to connect them directly to a computer or tablet. You can use them as controllers for music production software or learning apps. This digital connectivity makes it easy to integrate either keyboard into a modern home studio or practice setup without needing extra adapters.
Is the CT-S1 suitable for beginners?
The CT-S1 is well-suited for beginners who need a compact instrument. It offers 61 touch-responsive keys and the AiX Sound Source for realistic tones. Its lightweight design at 9.92 pounds makes it easy to move and store. The portable form factor helps new players focus on practice without dealing with a heavy, cumbersome instrument.
Does the CT-X700 have a wide range of sounds?
The CT-X700 is designed for players seeking a wide range of sounds. It utilizes the AiX Sound Source to provide realistic tones. This feature allows you to explore different instrument voices during practice or performance. The keyboard’s portable design ensures you can take these varied sounds with you while traveling or practicing in different locations.
How do the dimensions compare between the two?
The CT-S1 is 36.6 inches long, 10.2 inches wide, and 3.26 inches high. The CT-X700 is 37.3 inches long, 13.8 inches wide, and 4.29 inches high. The CT-X700 is wider and taller, while the CT-S1 is more compact in all dimensions. These differences affect how much desk or table space each keyboard requires.
Which model is lighter to carry?
The CT-X700 is slightly lighter, weighing 9.48 pounds. The CT-S1 weighs 9.92 pounds. Although the difference is small, the CT-X700 offers a marginally lower weight for carrying. Both models are designed for portability, but if minimal weight is your primary concern, the CT-X700 has a slight advantage in this specific specification.