Petoi Bittle X V2 vs Ropet KAMOMO Pro
Researched by Riley Hart · prices checked Oct 26, 2026
As of Oct 26, 2026, the Petoi Bittle X V2 costs $319 and the Ropet KAMOMO Pro costs $280, so the Ropet KAMOMO Pro is $39 cheaper. Pick the Petoi Bittle X V2 for learning to code and build robots. Pick the Ropet KAMOMO Pro for cuddly desk companion on a budget.
- Type
- Robot dog kit
- Interaction
- App
- Subscription
- None
- Ages
- 10+
Bittle X V2 is a strong pick for kids 10 and up, students and hobbyists who want to learn coding and robotics on a real legged robot that runs offline. Skip it if you want a hands off pet for cuddling or long play, since it walks about an hour per charge and the best experience involves some programming.
Full Petoi Bittle X V2 review →- Type
- Plush robot pet
- Interaction
- Touch
- Subscription
- None
- Ages
- 3+
Ropet is a soft, warm pet for a desk or nightstand that reacts to touch and faces and works offline for its core behaviors. It suits adults and older kids who want a cuddly companion at a lower price than Moflin, with optional GPT chat. Skip it if you want a robot that moves around the room or if cloud AI features and an in app credit system put you off.
Full Ropet KAMOMO Pro review →Side by side
| Petoi Bittle X V2 | Ropet KAMOMO Pro | |
|---|---|---|
| Price | $319 | $280 |
| 3 year cost | $319 | $280 |
| Our score | Not scored yet | Not scored yet |
| Rank in Companions | #12 | #10 |
| Status | on sale | on sale |
| Warranty | 1 year, plus 30 day returns (Petoi store) | 1 year (Amazon listing) |
| Type | Open source programmable robot dog, sold as a build kit or pre assembled | Plush robot pet with screen eyes, removable fur and mask, and a body that gives off warmth |
| Interaction | Voice commands, Petoi phone app, IR remote with the pre assembled package, block coding, Python and C++ | Touch, voice, face recognition, hand gestures and object recognition; companion app for diary, eye styles and AI features |
| Ai features | On device voice recognition with 35+ built in commands and up to 10 custom ones, no network needed; optional camera module for AI vision projects | Behaviors, recognition and personality growth run offline on the robot; GPT powered conversation unlocks after 7 days of care, and AI chat, diaries and the Dream Sketch drawing feature use cloud processing |
| Camera | Optional add on camera; none in the base kit | Yes, camera in the nose; Dream Sketch photo processing is optional and must be turned on in the app |
| Mobility | Four legs, 9 joints; maker lists a safe top speed of 40 mm/s; can carry 1 lb | Stationary desk pet; the Pro charging base lets it rotate a little (per Engadget) |
| Battery runtime | About 1 hour of continuous walking | 2.5 to 3.5 hours (maker FAQ) |
| Charge time | About 2 hours (RobotShop listing); charger not included | About 1 hour fast charging, 1.5 to 2 hours standard (maker FAQ) |
| Size weight | 200 by 110 by 110 mm (RobotShop); weight not published | 9.92 x 5.91 x 5.91 in, 1.32 lb (Amazon listing) |
| Subscription | None | No plan required; Ropet's site says GPT chat is free with no usage limit, while the Amazon listing mentions 10 free minutes a day plus in app credits |
| Age range | 10+; younger builders with adult supervision | 3 years and up (manufacturer recommended age on Amazon listing); some AI features have their own age requirements |
| Best for | learning to code and build robots | cuddly desk companion on a budget |
| Skip if | you want a no effort pet | you want a robot that moves around |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Petoi Bittle X V2
- Make:: Tested the Bittle X V2 with arm alongside the Nybble Q; noted built in voice control and an ESP32 board, that you never have to assemble circuit boards, and that Bittle is the more durable choice, though neither is a foolproof consumer product. Source
- Movies Games and Tech: Pre built Bittle X ran about an hour per charge; 35+ voice commands were new for this edition; setup needs software on a computer and the box has no printed instructions. Source
- Hinton Magazine: Praised the DIY kit as a way to learn robotics and wiring, the durable interlocking parts, OpenCat programming and 35+ voice commands. Source
Ropet KAMOMO Pro
- Engadget: Hands on at CES 2025: found it very cute and responsive to touch, gestures and music, with object recognition shown as emoji eyes. Noted face data is processed on the device and ChatGPT is optional. Source
- Forbes (contributor): CES 2025 hands on described it as enjoyable to interact with, called the battery life unimpressive and flagged privacy as a likely concern despite mostly local data. Source
Pros and cons
Petoi Bittle X V2
Pros
- Open source with block, Python and C++ coding
- Offline voice commands, no account needed
- Kit or pre assembled options
- Durable plastic body (Make:, The Gadgeteer)
Cons
- About 1 hour per charge
- Charger not included
- Several alloy servo versions sold out
- Remote control can be unresponsive (What Gadget)
Ropet KAMOMO Pro
Pros
- Core behaviors and recognition work offline
- Body warmth and soft fur feel pet like
- Lower price than other furry companions
- Swappable fur, masks and eye styles
Cons
- Battery lasts about 2.5 to 3.5 hours
- Does not move around the room
- AI chat limits described differently by maker and Amazon
- Cloud processing for chat, diary and drawing features
Questions buyers ask
Which is better, the Petoi Bittle X V2 or the Ropet KAMOMO Pro?
Pick the Petoi Bittle X V2 for learning to code and build robots. Pick the Ropet KAMOMO Pro for cuddly desk companion on a budget.
Which is cheaper?
The Ropet KAMOMO Pro at $280, versus $319 for the Petoi Bittle X V2, checked Oct 26, 2026. Over 3 years with running costs: $319 vs $280.
What is the difference between the Bittle X V2 and the KAMOMO Pro?
Type: Open source programmable robot dog, sold as a build kit or pre assembled on the Bittle X V2, Plush robot pet with screen eyes, removable fur and mask, and a body that gives off warmth on the KAMOMO Pro. Interaction: Voice commands, Petoi phone app, IR remote with the pre assembled package, block coding… on the Bittle X V2, Touch, voice, face recognition, hand gestures and object recognition; companion app for… on the KAMOMO Pro. Ai features: On device voice recognition with 35+ built in commands and up to 10 custom ones, no… on the Bittle X V2, Behaviors, recognition and personality growth run offline on the robot; GPT powered… on the KAMOMO Pro.
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All robot pets and companions, ranked
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