Name: UBTech Walker S2
Brand: UBTech

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UBTech Walker S2 price, specs and parts | Teardex

Brain layer 2 of 5

Chip

The computer inside the robot that runs it.

Jetson OrinEDU versionIn storeListedUS$699Confirmed

A small, powerful computer made for running AI inside machines. UBTech's Walker S2 manual lists the computing setup as an x86 computer plus an Nvidia Jetson Orin. The Jetson model (for example AGX or NX) is not named.

Part priceListedUS$699

The launch price of the Orin NX 16GB module on its own. Reports in 2026 say Nvidia has since raised Jetson prices sharply, with this module's volume price going from US$599 to US$999.

Single-unit store price. Robot companies buying in volume usually pay less.

Price checked 12 Oct 2026

Made by: Nvidia
Applies to: EDU version
Sources
Checked: 28 Oct 2026

Every robot using Jetson Orin

x86 computer, chip not namedEDU versionOur estimateConfirmed

A standard PC-style computer board inside the robot. The chip maker and model are not published. Alongside the Jetson Orin, the Walker S2 has an x86 computer running Ubuntu 22.04; the chip maker and model are not named.

Part priceOur estimateUS$350 to US$4,500

Based on: UBTech does not name the chip or the computer in the Walker S2, so this is not its price. It is the price of comparable small x86 computers that run Ubuntu 22.04 next to a Jetson, from a mini PC sold without memory or storage to a complete rugged industrial PC. Where the real part sits depends on the chip, how rugged the box is and how much memory it carries.

Jetson OrinJetson AGX Orin, per NvidiaIn storeListedUS$699Likely

A small, powerful computer made for running AI inside machines. Nvidia says UBTech trimmed its software enough to move its humanoid from the Jetson AGX Orin 64GB to the 32GB module.

Part priceListedUS$699

The launch price of the Orin NX 16GB module on its own. Reports in 2026 say Nvidia has since raised Jetson prices sharply, with this module's volume price going from US$599 to US$999.

Single-unit store price. Robot companies buying in volume usually pay less.

Brain layer 3 of 5

Senses

How the robot sees and hears the world.

Stereo camera pairsIn-house, built by this robot's companyConfirmed

Cameras in pairs, like two eyes, so the robot can judge distance. The head has a pair of RGB cameras that work like human eyes, with a deep learning model turning the two images into a depth map.

Made in-house

UBTech says it developed the Walker S2's two-lens vision system itself.

“The self-developed passive binocular vision system employs deep learning-based stereo depth estimation algorithms to generate high-precision, left-aligned dense depth maps in real-time.”

UBTech, Walker S2 product page

Made by: Not named
Applies to: All versions
Sources
Checked: 28 Oct 2026

Every robot using Stereo camera pairs

Stereo fisheye camerasOur estimateConfirmed

Two very wide-angle cameras working as a pair. Two fisheye cameras in the head give a wide view; UBTech's spec diagram labels them and the SDK has left and right fisheye camera feeds.

Part priceOur estimateUS$45 to US$860 a pair

Based on: These are comparable fisheye stereo cameras on public sale, not the confirmed parts: 1X and UBTech do not name theirs. Few ready-made fisheye pairs are sold, so the range is wide: a basic stereo board costs about US$45, while two industrial fisheye cameras from Stereolabs cost about €860 together.

Orbbec Gemini 2LEDU versionIn storeListedUS$319Confirmed

A depth camera that sees colour and measures how far away everything in view is. Two Orbbec Gemini 2L depth cameras sit on the back of the body and the front of the waist.

Part priceListedUS$319

The price in Orbbec's own online store for a single camera on 15 October 2026, before tax and shipping. UBTech does not say what it pays when buying in volume.

Single-unit store price. Robot companies buying in volume usually pay less.

Force sensingOur estimateConfirmed

Sensors that measure how hard the robot is pushing, pulling or gripping. A six-axis force sensor at each wrist measures the forces on the arms.

Part priceOur estimateUS$2,500 to US$6,000 per sensor

Based on: These are prices for comparable six-axis force/torque sensors, not for the confirmed part, because the robot companies do not name the sensor company. Small wrist-size sensors such as the ATI Mini45 and Mini40 are listed at US$2,499 and US$5,750 at Robotics Center, and lower-cost arm sensors from UFACTORY sell for about US$3,300 to US$3,500. Larger cobot sensors cost more, up to US$10,643 for a Robotiq FT 300-S at one US seller. A humanoid company buying in volume, or making the sensor in-house, likely pays less.

IMU motion sensorOur estimateConfirmed

A sensor, like the one in a phone, that feels tilt and movement so the robot can keep its balance. An inertial measurement unit tracks the robot's tilt and motion for balance.

Part priceOur estimateUS$260 to US$1,400 per sensor

Based on: These are prices for comparable products, not the confirmed part in any of these robots. Precision industrial IMUs of the kind a humanoid uses for balance, such as the Analog Devices ADIS16470 (the same company and family style as the FORSENSE FSS-IMU16460-DM in the AgiBot X2) and the Xsens MTi-630 or VectorNav VN-100, list from about US$260 to about US$1,400 for one unit. Hobby 9-axis boards like the Adafruit BNO085 cost about US$30 but are a lower class of sensor. FORSENSE does not show a public price, so the X2 part itself could cost more or less.

Microphone arrayOur estimateConfirmed

Several microphones working together, so the robot can hear speech and tell where it comes from. A microphone array lets the robot hear spoken commands, with speech recognition triggered by the wake words Walker, Walker.

Part priceOur estimateUS$55 to US$200 per array board

Based on: These are comparable products, not the confirmed parts inside these robots: no company names the array model or the number of microphones. A ready-made far-field array with its own voice processor (echo cancelling, beamforming, direction finding) sells for about US$55 to US$60 from Seeed, and a 7-mic array from miniDSP sells for about EUR 159 to EUR 189 in Europe. A robot company buying in volume, or designing the array onto its own board, would likely pay less per unit.

Not the brain

Body

The motors, gears, hands and battery that make it move.

Joint actuators, model not namedSDK, 42 jointsIn-houseOur estimateConfirmed

The motor units that move each joint; the company does not give them a model name. UBTech's SDK document says the Walker S2 has 42 integrated joint motors: 2 in the head, 7 in each arm, 2 in the waist, 6 in each leg and 6 in each hand. Each ankle is moved by two motors working together, an inside and an outside one.

Part priceOur estimateUS$300 to US$900 each

Based on: The company does not name or sell these joint actuators on their own, so this is not their price. It is the price of comparable joint actuators a builder can buy, from about US$300 to US$400 for wrist and head size units around 22 to 25 Nm, up to about US$900 for leg size units with about 120 Nm of peak torque. The hip and knee joints of a full-size humanoid can be stronger than that, so they could cost more.

Price checked 20 Oct 2026

Made by: Not named
Applies to: SDK, 42 joints
Sources
Checked: 4 Nov 2026

Every robot using Joint actuators, model not named

Joint actuators, model not namedTorque per jointIn-houseOur estimateConfirmed

The motor units that move each joint; the company does not give them a model name. UBTech lists rated and peak torque per joint: the hips' roll and pitch and the knees 75 Nm rated, 225 Nm peak; waist pitch 79 and 265 Nm; waist turn 35 and 85 Nm; hip turn and each ankle motor 22 and 65 Nm. In the arms, shoulder pitch and roll are 27 and 80 Nm, upper arm turn and elbow 17 and 45 Nm, forearm and wrists 17 and 20 Nm, and the head 3 and 4.5 Nm.

Part price

Joint actuators, model not namedMarketing count, 52 jointsIn-houseOur estimateConfirmed

The motor units that move each joint; the company does not give them a model name. UBTech's own marketing counts 52 joints, a figure that includes the finer hand joints, and says a high-power, high-torque waist motor lets the S2 lift 15 kg and turn its waist 162 degrees either way.

Part priceOur estimate

UBTech dexterous hand3rd generationIn-houseOur estimateConfirmed

UBTech's own five-finger robot hand, built in several generations for its Walker robots. The SDK describes UBTech's third-generation hand on the S2: 6 motor-driven joints per hand, driven by small linear actuators, which push in a straight line, giving up to 100 N of push. The fingertips move passively with no motor.

Part priceOur estimate

UBTech dexterous hand4th generationIn-houseOur estimateConfirmed

UBTech's own five-finger robot hand, built in several generations for its Walker robots. UBTech's fourth-generation hand, released in 2025 alongside the S2, has 11 joints driven through worm gears, screw-like gears that hold position on their own, and a fingertip force of 12.5 N. IT Home's report on the start of mass deliveries says the S2 is fitted with this hand.

Part priceOur estimate

Battery pack, cells not namedOur estimateConfirmed

The robot's rechargeable battery; the company does not say whose cells are inside. The S2 runs on a 48 V lithium-ion supply, charged at 54 V and 8 A, for about 2.5 hours of mixed work. It carries two batteries and can swap one for a charged pack by itself in 3 minutes, so it can keep working around the clock.

Part priceOur estimateUS$720 to US$2,600

The companies do not say whose cells are in these robots' packs, and most do not sell the pack on its own, so this is not the price of any one robot's battery. It is the price of humanoid-size packs of about 48 V and 480 to 1,100 Wh that a builder can buy today. At the top is AgiBot's own X2 pack, sold by a German dealer at 2.244,99 € including VAT.

Battery pack, cells not namedPer-pack runtimeOur estimateLikely

The robot's rechargeable battery; the company does not say whose cells are inside. heise reports each of the two 48 V lithium packs gives about 2 hours of walking or 4 hours of standing work and takes up to 90 minutes to recharge. UBTech does not give a capacity in Wh or name the cell company.

Part priceOur estimateUS$720 to US$2,600

Harmonic gear reducerOur estimateRumoured

A compact gear, also called a strain wave gear, that uses a flexing toothed ring to slow a motor and multiply its force with almost no play. A Huxiu article on Leaderdrive, a Chinese harmonic reducer company, names UBTech among its humanoid customers, but does not say which UBTech robot uses its reducers.

Part priceOur estimateUS$550 to US$900 each

Based on: The robot companies that use harmonic reducers buy them from suppliers such as Leaderdrive and do not sell them on, and their exact models are not public, so this is not their price; it is the price of comparable reducers a builder can buy. The range uses ready-to-buy strain wave reducers in the sizes and gear ratios used in robot arm and leg joints.

UBTech Walker S2

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