Petoi Nybble — Specs & Review
Specifications
| Brand | Petoi |
|---|---|
| Model | Nybble |
| Year | 2019 |
| Category | Entertainment, Educational |
| Autonomy | semi-autonomous |
| Environment | indoor |
| Price (USD) | $249–$299 |
| Weight | 0.25 kg |
| Dimensions | 17cm L × 9cm W × 10cm H |
| Connectivity | WiFi, Bluetooth |
| Works with | iOS, Android |
| Rating | 4.4/5 (623 reviews) |
| Country of origin | CN |
Key features
- Original Petoi quadruped — established maker community
- Cat form — distinct from Bittle dog aesthetic
- Laser-cut wood structure — lighter at 250g
- Same OpenCat firmware as Bittle
- Raspberry Pi expandable
- Open-source hardware and firmware
- Sold direct via petoi.com
What is it?
Petoi Nybble is the original open-source cat quadruped — lighter and smaller than Bittle X, with the same OpenCat firmware and Raspberry Pi expandability.
Who is it for?
- Makers wanting the lighter, cat-form Petoi vs the Bittle dog
- Robotics hobbyists studying legged locomotion on a more compact platform
- Custom modification enthusiasts in the Nybble community
Key specs
- Form: Cat quadruped
- Weight: ~250g (lighter than Bittle X)
- Structure: Laser-cut wood
- Controller: NyBoard (Arduino-based)
- Firmware: OpenCat (open-source)
- Price: ~$249–299
- Purchase: petoi.com direct
Limitations
- Older design than Bittle X
- Wood structure less durable than Bittle's alloy
- Less active development than Bittle X
FAQ
How much does the Petoi Nybble cost?
The Petoi Nybble is priced between $249 and $299 and is available directly at petoi.com. It is the original Petoi quadruped — lighter and slightly more affordable than the Bittle X, with a laser-cut wood structure rather than aluminium alloy.
What is the Petoi Nybble used for?
Nybble is an open-source cat-form quadruped for robotics education, gait research, and maker customisation. It shares the same OpenCat firmware and Raspberry Pi expandability as the Bittle, making it compatible with the full Petoi developer community's libraries, extensions, and tutorials. Its cat aesthetic and 250g weight give it a distinct character suited to compact desktop experiments.
How does the Petoi Nybble differ from the Petoi Bittle X?
Nybble uses a laser-cut wood structure (lighter, less durable) vs Bittle X's aluminium alloy; has a cat form factor vs Bittle's dog form; and is slightly cheaper. Both share OpenCat firmware. Nybble is the original Petoi design with an established community; Bittle X is the newer, more robust version. For durability and outdoor use, Bittle X is recommended; for compact lightweight experiments and the cat aesthetic, Nybble is the choice.
Who is the Petoi Nybble designed for?
Nybble targets robotics makers, students, and researchers wanting an affordable, open-source legged platform with an established community. Its lighter weight (250g) makes it particularly suited to experiments where mass matters — studying legged locomotion dynamics, energy efficiency, or carrying sensor payloads relative to body weight.
Does the Petoi Nybble require coding knowledge to use?
Basic operation of Nybble is accessible without coding — pre-loaded gaits work out of the box, and the Petoi iOS/Android app provides no-code control. Programming custom gaits or behaviours requires Arduino C++ or Python via the OpenCat SDK. Raspberry Pi expansion is available for ROS development. Petoi's documentation and active community make it one of the most learner-friendly open-source quadruped platforms available.