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Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

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Unitree B21X Neo
Battery WH
2,250
842
Weight KG
60
30
SpecUnitree B21X Neo
Battery WH2,250842
Weight KG6030
AI Compute FP4 Tflops—2,070
ARM DOF—7
ARM Payload KG—8
Battery AH45—
Battery Runtime Hours—4
Battery Voltage V58—
Canonical NameUnitree B21X Neo
Carry Capacity KG—25
Charge Minutes PER Hour Runtime—6
Commercial Release Year2,024—
Compute Chipset—1X NEO Cortex (NVIDIA Jetson Thor)
Compute Modules MAX3—
Compute Optional CPUIntel Core i7—
Compute Optional GPUNVIDIA Jetson Orin NX—
Compute StandardIntel Core i5—
Deployment Statuscommercialpreorder
Deposit USD—200
Depth Cameras2—
First Delivery Year—2,026
Form factorquadrupedhumanoid
Hand DOF—22
Height CM—168
IP RatingIP67—
LEG DOF—6
Lidars1—
Lift Capacity KG—70
Loaded Weight KG20—
MAX Slope Degrees45—
MAX Speed M S6—
MAX Stair Height CM40—
MSRP (USD)↓ better100,000—
Neck DOF—3
Operating Temp MAX C55—
Operating Temp MIN C-20—
Operating Temp MIN C ABS20—
Optical Cameras2—
Payload Standing KG120—
Payload Walking KG40—
Preorder Price USD—20,000
Prone Height MM330—
Prone Length MM880—
Prone Width MM460—
Range Loaded KM15—
Range Unloaded KM20—
RUN Speed MPS—6.2
Runtime Loaded Hours4—
Runtime Unloaded Hours5—
Spine DOF—2
Standing Height MM645—
Standing Length MM1,098—
Standing Width MM450—
Status Checked2026-09-242026-09-24
Store Availablefalse—
Subscription USD Month—499
Total DOF—80
VendorUnitree Robotics1X Technologies
Walking Speed MPS—1.4