Overview
The AI version of MechDog, using the same aluminum 8-servo ESP32 body with a WonderLLM module mounted on its head. No ultrasonic sensor is listed for this version. The module carries an ESP32-S3, a 2 MP camera, microphones, a speaker and a 2-inch touch screen, and links to cloud models such as DeepSeek, Doubao and Qwen3 for voice chat, scene description and spoken commands. The Advanced Kit adds a 3-servo arm with a gripper, so it can find an object named aloud, pick it up and carry it. The AI features need Wi-Fi and an account on the third-party Xiaozhi platform, and with 8 leg servos the gait is as limited as the base model. It suits students and makers who want a programmable robot dog that takes spoken instructions.
Hiwonder sells two kits built on the same robot. The Standard Kit ($499.99) is the dog with the WonderLLM module, a charger, cables, EVA blocks and tools. The Advanced Kit ($539.99) adds the 3-DOF robotic arm used for grasping and transport. The Standard Kit costs $200 more than the base MechDog Standard kit, while the Advanced Kit is $30 less than the MechDog Pro Developer Kit, which also has an arm. Unlike the base MechDog line there are no micro:bit or LEGO add-ons.
Versions compared
| Standard | Advanced | |
|---|---|---|
| Price (hiwonder.com) | $499.99 | $539.99 |
| Features | ||
| LLM voice chat (DeepSeek, Doubao, Qwen3) | ● | ● |
| Scene understanding and object recognition | ● | ● |
| Voice-controlled movement and posture | ● | ● |
| Stranger detection (watchdog) | ● | ● |
| Robotic arm grasping and transport | – | ● |
| In the box | ||
| MechDog AI (assembled) with WonderLLM module, 8.4 V 2 A charger, Type-C and module cables, screwdriver, screw pack | ● | ● |
| 3 EVA blocks (40 mm) | ● | ● |
| 3-DOF robotic arm with gripper (3 LFD-01M micro servos) | – | ● |
Contents come from Hiwonder's packing list images for each kit. Hiwonder publishes no feature chart per kit, so the feature rows are inferred from the packing lists (only the Advanced Kit has the arm). Both kits share the same robot (ESP32 controller, 8 HPS-0618SG coreless servos, 7.4 V 1500 mAh battery, WonderLLM module). Hiwonder store ↗ · WonderLLM wiki ↗
Specifications
| Category | Quadrupeds · Desktop / hobby kits |
|---|---|
| Released | 2026 |
| Country | China |
| Availability | Available |
| Programmability | Full SDK |
| Built-in autonomy | Reactive · Responds to its surroundings without a map, such as avoiding obstacles or following a person |
| LLM support | LLM plans actions · The WonderLLM head module runs the open-source Xiaozhi AI firmware and connects over Wi-Fi to the cloud Xiaozhi platform (xiaozhi.me), where an account and agent setup are required. Hiwonder lists DeepSeek, Doubao and Qwen3 as selectable models, with 30+ languages. Spoken requests are turned into walking, posture and arm actions, such as describing a scene or picking up a named object and moving it. WonderLLM wiki ↗ |
| MuJoCo simulation | None found · Nothing found. |
| NVIDIA Isaac simulation | None found · Nothing found. |
| Gazebo simulation | None found · Nothing found. Hiwonder supplies 3D files in IGS format, not a robot description. |
| Best for | Ages 12+ (estimated) |
| Vision sensors | Camera |
| Actuators | Hobby servos |
| Audio | Speaker, Microphone |
| Compute type | Arduino / ESP32 / microcontroller |
| Compute | ESP32 controller, plus ESP32-S3 in the WonderLLM AI module (cloud LLMs over Wi-Fi) |
| Weight | 711 g with arm (26.9 × 12.6 × 17.4 cm standing, Advanced Kit), 7.4 V 1500 mAh battery, runtime not published |
| Speed | Not published |
| DOF | 8 servos (legs), plus 3 on the arm in the Advanced Kit |
| Sensors | 2 MP camera (123° FOV), microphones, IMU, 2-inch touch screen |
| SDK | Python, Arduino, Scratch-style blocks, PC action editor, schematics and IGS 3D files |
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