Name: Walker C1
Brand: UBTECH

Overview

About Walker C1

Uses

01Multilingual reception and greeting
02Guided tours along routes set in the cloud platform
03Shopping assistance
04Cultural performances and dance shows
05Patrolling and traffic assistance
06Education and research

Industries

Hospitality and events

Drive

Legged (bipedal)

Availability

SloveniaCroatiaSerbiaBosnia and HerzegovinaNorth Macedonia

Walker C1 is a full-size humanoid service robot for public and commercial spaces such as showrooms, museums, events and city services. Typical uses are multilingual reception and greeting, guided tours along routes set up in the cloud platform, shopping assistance, cultural performances and dance shows, patrolling and traffic assistance, and work in education and research. It converses through a large language model, can describe what it sees, and combines speech, gestures and facial expressions on a round display, including handshakes and greetings. It navigates using vision only, avoids obstacles and respects virtual walls set in the cloud platform, which also manages maps, tour scenarios, voices and logs. It steps out of its transport case by itself, is designed for setup by one person, and can be controlled with a remote control, a handheld console, a motion capture suit or VR glasses, with motions recordable as training data. A built in motion library, group dance synchronisation, an SDK and API in C++ and Python on ROS 2, and modular hands that accept third party grippers enable custom applications. Several features (offline conversation, custom personalities, VIP guest recognition, local LLM) are announced by the manufacturer for a later update.

Manufacturer footage

Straight from the manufacturer.

Walker C1 jumps in a dance studio

Walker C1 in a jump above a city skyline at sunset

Walker C1, upper body on a light background

Images and video: manufacturer materials (UBTECH).

In motion

See it move.

Walker C1 dancing with people in a ballet hall

What it can do

Capabilities.

Walker C1 humanoid robot standing upright, full body front view

01

Full-size body

The robot is 164 cm tall and weighs 55 kg, with 53 degrees of freedom throughout the body for a natural posture. The exterior is designed for clothing, so you can dress the robot for a reception, a venue or a stage.

Walker C1 humanoid robot taking a step, three quarter front view

02

Walking and running

The robot moves at 3 m/s or more, and its walking and running resemble a human gait. Navigation builds a 3D map as it goes and plans a route around obstacles.

Walker C1 humanoid robot in front of a glass building entrance raising a hand towards a woman reaching out to greet it

03

Reception and guided tours

The robot is designed for multilingual reception, guided tours, shopping assistance and conversation with visitors at events. In education it works as a teaching assistant or a research platform.

Close up of a Walker C1 dexterous robot hand shaking a human hand, light blue sky behind

04

Dexterous hands as an option

Dexterous hands are available as an option for both arms, and the joints use compliant force control.

Walker C1 humanoid robot seen from behind and the side, gesturing with an open hand

05

Works offline, open to developers

Language models run locally on the robot, and it can also connect to the cloud. A built in motion library, custom motions, standard interfaces and an SDK let you adapt it to your use.

Dance and stage performance

The robot walks, runs and dances. It keeps its balance on one or both legs and also performs demanding dance moves, as in this rehearsal with dancers.

Walker C1 · Technical data

Specifications.

Manufacturer specifications

Key specifications

Height: 164 cm
Weight: 55 kg
Degrees of freedom: 53
Speed: 3 m/s or more
Payload: 6 kg*
Runtime: 3 h*

Variants

Model hands (standard)Dexterous hands (optional)

Notes on the data

* Preliminary value, not yet confirmed
The datasheet lists Chinese and English as conversation languages (no dialects).
Speed 3 m/s or more appears in the summary; the datasheet table has no speed row.

Full technical sheet

74 items

General9 items

Robot type	Full-size humanoid service robot
Operating system	Ubuntu + ROSA 2.0
OTA updates	Supported
Operating environment	Indoors; outdoor use not recommended
Prohibited uses	Medical, military or other non-commercial scenarios; environments with flammable or explosive substances or strong electromagnetic interference
Boot time (from power button to remote control mode)	Approx. 2 to 3 minutes
Self unpacking time (until standing on the floor)	Approx. 20 seconds
Packing	Unpacking and packing with lift assistance supported; self packing announced for a future OTA update
Transport	C1 transport case

Dimensions and weight4 items

Specification	Model hands (standard)	Dexterous hands (optional)
Height	164 cm
Arm span (without dexterous hands)	1280 mm
Weight with model hands	Approx. 55 kg	On request
Weight with dexterous hands	On request	Approx. 56 kg

Motion and degrees of freedom13 items

Specification	Dexterous hands (optional)
Total degrees of freedom	53 (31 in the body, 22 in the dexterous hands, including passive)
Legs	6 degrees of freedom each
Waist	3 degrees of freedom
Arms (without dexterous hand)	7 degrees of freedom each
Head	2 degrees of freedom
Dexterous hand (optional)	11 degrees of freedom per hand (6 active + 5 passive)
Dexterous hands	2 (optional)
Payload (without dexterous hands)	One arm: 3 kg; both arms: 6 kg
Recommended continuous dancing	≤ 10 minutes
Built in dances	Two dances, each longer than 30 seconds; can be performed on thin carpets, marble and epoxy floors
Group performance	Group control with centimetre accurate synchronisation and low latency command distribution
Hand configurations	Standard: model hands (removable, compatible with third party dexterous hands/grippers). Optional: UBT third generation dexterous hand, Lite version
Third party end effectors	Third party two finger grippers and wrist cameras supported, controlled via teleoperation

Battery and power10 items

Total battery runtime	2.5 to 3 hours
Max. endurance (walking on the spot, 100 % to 0 %)	≥ 3 h
Typical endurance (dancing, 100 % to 0 %)	≥ 2 h
Charging time (0 % to 100 %)	Approx. 90 minutes
Rated voltage	48 V DC / 8 A
Charging	52 V DC / max. 14 A
Battery	Swappable (battery C0445D5 included)
Charging methods	Charge the robot directly with the power adapter, or remove the battery and charge it separately with the direct battery charging cable
Mains power for charging	Grounded socket 100 to 240 V / 50 to 60 Hz; ambient 0 to 40 °C
Long term storage (unused for more than 1 month)	Robot: switched off, battery removed, dry ventilated room at 0 to 30 °C. Battery: stored separately at 0 to 25 °C, humidity 30 % to 60 %, checked monthly, charge level 50 % to 80 %

Computing and sensors7 items

Compute unit	Onboard NVIDIA Jetson Thor 128 GB, 2,070 TFLOPS (FP4 sparse)
Fisheye cameras	2
Binocular (stereo) camera	1
Monocular camera	1
High precision inertial measurement unit (IMU)	2
Navigation	Vision only U-SLAM navigation, spatial perception, active obstacle avoidance and detour; virtual walls
Camera views in teleoperation	Five camera angles

Interaction17 items

Display	2.8 inch round interactive display
LCD display	1
Display response time / max. brightness	< 100 ms / > 800 nits
Microphones	4
Speakers	2
Indicators	Battery status LED indicators
Controls	Emergency stop button and power switch
Emergency stop	The emergency stop button on the robot's back locks all motors; servo emergency stop cable for professional use
Languages	Chinese and English (mixed use supported; dialects not supported)
Wake word	"Walker Walker"
Online conversation latency	< 2 seconds end to end (good network)
Conversation distance	At least 1.5 m; up to 5 m with a wireless microphone
Voices	Male, female, child
Large model	Alibaba Bailian platform ("omni" multimodal model); cloud and local operation supported
Connectivity	Global 4G/5G connectivity; optional plug in 5G module
Remote control	Remote control included (movement in six directions, walk/task/mode switching, emergency stop); optional handheld console (joystick + touchscreen app)
Teleoperation devices	Motion capture suit (Xsens + Manus gloves) and VR (Pico); full body and half body

Software development6 items

SDK and API	Available (motion control, arm control, sensor access, navigation, telemetry, system configuration, diagnostics)
Programming languages	C++ and Python
Development environment	ROS 2 container on the robot: Ubuntu 22.04 + ROS 2 Humble; ROS2 with URDF supported; Mac and Windows not supported
Recommended robot version for the SDK	Main version 0.0.6 or later
SDK demo programs	Audio playback, power board and battery status, arm, dexterous hand and head control, arm and robot status, camera subscription
Own large language model	A customer model can be used if deployed in the cloud or at the network edge

Environment and site requirements8 items

Operating temperature	3 °C to 40 °C
Relative humidity	30 % to 80 % (non condensing)
Storage temperature	-10 °C to 50 °C
Minimum working area	One robot: at least 4 m² (2 m × 2 m); shared aisle width ≥ 1.5 m
Floor	Level, flatness deviation ≤ 5 mm/m²; load capacity ≥ 150 kg/m²
Lighting	Working area illuminance ≥ 200 lux
Network (online use)	Gigabit Ethernet recommended, latency ≤ 100 ms, packet loss ≤ 1 %
Safety distance during operation	≥ 1.5 m