Agility Digit: AI model, chip, sensors and motors

Agility Digit: AI model, chip, sensors and motors | Teardex

Brain layer 2 of 5

Chip

The computer inside the robot that runs it.

IGX ThorDigit 5In storeConfirmed

An industrial Nvidia computer for robots, with built-in safety features. Agility says Digit 5 will run all its onboard computing on Nvidia IGX Thor modules, an industrial computer with built-in safety features, and that Nvidia will be the only supplier of onboard computers for the Digit 5 that goes on general sale. Co-founder Jonathan Hurst says almost all of the computing sits in one box at the top of the torso, so it can be swapped for a newer computer without redesigning the rest of the robot. He adds that Digit's safety system used to be a separate computer in its own yellow box and is now built into IGX Thor.

Made by: Nvidia
Applies to: Digit 5
Sources
Checked: 24 Oct 2026

Every robot using IGX Thor

Jetson ThorPlan from 2025, now IGX ThorIn storeListedUS$5,499Confirmed

Nvidia's newest onboard AI computer, aimed at humanoid robots. In 2025 Agility said it planned to use Nvidia's Jetson Thor as Digit's main onboard computer in a coming generation. In October 2026 it said Digit 5 will instead standardise on Nvidia's IGX Thor modules, the industrial version of Thor.

Part priceListedUS$5,499

Newegg's list price for the developer kit on 13 October 2026. The developer kit is the version sold to the public, and it launched at US$3,499 in 2025. A robot company buying the bare module in volume would pay a different price that is not public.

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

Jetson, model not namedCurrent DigitConfirmed

One of Nvidia's small computers for running AI inside machines. Which one has not been said. Nvidia says the current Digit has one of its Jetson computers inside, but does not say which one.

Made by: Nvidia
Applies to: Current Digit
Sources
Checked: 24 Oct 2026

Every robot using Jetson, model not named

Nvidia RTX GPU modulesEarlier versionsConfirmed

Graphics chips from Nvidia, built into the robot to run its AI. Agility says earlier versions of Digit ran their AI on Nvidia RTX hardware before moving toward Jetson Thor. It does not name the model.

Made by: Nvidia
Applies to: Earlier versions
Sources
Checked: 15 Oct 2026

Every robot using Nvidia RTX GPU modules

Not the brain

Body

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

Agility cycloidal actuatorsDigit 5In-houseConfirmed

Agility's own joint motor units, which use cycloidal gears: a lobed disc that wobbles around a ring of pins, giving strong, shock-tolerant gearing. Agility says Digit's joints use its own proprietary cycloidal actuators, which it calls its most important hardware advantage, built for repeated impacts and precise force control. Agility designs and makes them itself at its RoboFab factory in Salem, Oregon, and may license them to others.

Made by: In-house
Applies to: Digit 5
Sources
Checked: 20 Oct 2026

Every robot using Agility cycloidal actuators

Agility cycloidal actuatorsHow the gears workIn-houseConfirmed

Agility's own joint motor units, which use cycloidal gears: a lobed disc that wobbles around a ring of pins, giving strong, shock-tolerant gearing. Co-founder Jonathan Hurst says the cycloidal gearing was first developed a decade ago for Agility's Cassie robot and is 95 to 96 percent efficient, meaning very little power is lost in the gears.

Made by: In-house
Applies to: How the gears work
Sources
Checked

Agility cycloidal actuatorsDigit 5 legsIn-houseConfirmed

Agility's own joint motor units, which use cycloidal gears: a lobed disc that wobbles around a ring of pins, giving strong, shock-tolerant gearing. Digit 5's legs were rebuilt with new cycloidal actuators and a more human-like knee layout, replacing Digit 4's backward-bending, bird-like knees, so it can kneel, squat and repeatedly lift loads of up to 50 lb.

Made by: In-house
Applies to: Digit 5 legs
Sources

Joint actuators, model not namedDigit before Digit 5In-houseOur estimateLikely

The motor units that move each joint; the company does not give them a model name. IEEE Spectrum's Robots Guide lists Digit with 16 degrees of freedom, 5 in each leg and 3 in each arm, driven by brushless DC motors with custom gearing. Agility's own 2019 launch post instead describes 4-degree-of-freedom arms, and Agility has not published a joint count for Digit 5.

Part priceOur estimate

Digit swappable grippersDigit 5In-houseOur estimateConfirmed

Agility's own hands for Digit, which snap on and off so the robot can switch tools for different jobs. Digit 5 has swappable hands that mount on standard ISO flanges, and currently uses a two-fingered, parallel-jaw gripper Agility makes itself. Agility says its grippers can lift 50 lb bins, and a tool changer lets it switch to other tools for jobs like machine tending.

Part priceOur estimate

Digit swappable grippersDigit 4In-houseOur estimateConfirmed

Agility's own hands for Digit, which snap on and off so the robot can switch tools for different jobs. Agility's investor deck says Digit 4's end effectors were task-specific and fixed, while Digit 5's are changeable.

Part priceOur estimate

Nyobolt fast-charge batteryDigit 5Price on requestConfirmed

A battery system built to recharge in minutes rather than hours. Digit 5 uses a fast-charging battery from Nyobolt, a UK company, that runs about 90 minutes and recharges in about nine minutes, a 10 to 1 run-to-charge ratio. Agility chose not to make it swappable because swapping adds mechanical complexity; the capacity is not disclosed.

Made by: Nyobolt
Applies to: Digit 5
Sources

Battery pack, cells not namedDigit 4 batteryOur estimateConfirmed

The robot's rechargeable battery; the company does not say whose cells are inside. Agility's investor deck says Digit 4 runs for 4 hours and charges itself at a dock, with a 2 to 1 run-to-charge ratio, giving up to about 16 hours of work a day. Agility does not publish the battery's capacity, voltage or cell company.

Part priceOur estimateUS$720 to US$2,600

Battery pack, cells not namedCapacityOur estimateLikely

The robot's rechargeable battery; the company does not say whose cells are inside. IEEE Spectrum's Robots Guide lists Digit's battery as a custom 1.2 kWh lithium-polymer pack.

Part priceOur estimateUS$720 to US$2,600

Based on: AgiBot, UBTech, Hexagon and Agility 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.

Agility Digit

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