Compare · head to head
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Booster K1 vs Kepler K2 Bumblebee

Data confidence: medium / medium · reviewed by Andrei Sheshenin · how we score

Kepler K2 Bumblebee ranks higher overall (40 vs 39, a 1-point gap). Booster K1 is ahead in locomotion, autonomy, deployment; Kepler K2 Bumblebee is ahead in manipulation, hands. Booster K1 is cheaper: about $4,211 vs $34,930.

#32
39score
Booster K1Booster Robotics
Booster K1
Booster Robotics · China · Walks on legs
Height95 cm
Weight20 kg
Joints22
Lifts?
Speed7.2 km/h
Battery0.3 h
Price$4.2k
On sale
VS
#26
40score
Kepler K2 BumblebeeKepler
Kepler K2 Bumblebee
Kepler · China · Walks on legs
Height175 cm
Weight75 kg
Joints30
Lifts30 kg
Speed?
Battery8 h
Price$30k-$35k
On sale
Booster K1Kepler K2 Bumblebee
Body
95 cm
Height
175 cm
20 kg
Weight
75 kg
LegsMoves onLegs
22
Joints (degrees of freedom)
30
Not disclosedActuatorsPlanetary roller screw and rotary actuators (hybrid)
Movement
7.2 km/h
Top speed
?
Hands and lifting
?
Joints per hand
11
?
Fingers
5
?
Carries (both arms)
30 kg
?
Lifts per arm
15 kg
Battery
0.3 h
Runtime per charge
8 h
Not disclosedCharging1h charge
Brain and senses
48/117/200 TOPS by versionAI modelNot disclosed
48 TOPS (dense)Onboard computer100 TOPS GPU
Binocular camera, 9-axis IMU, mic array + speakerSensorsSix-axis force, vision, audio sensors; 25 tactile points per finger
secondary development supportedSoftware / SDKSecondary development platform
Buying it
$4.2kPrice$30k-$35k
Limited-time price from 29,900 RMB (11.2025); RobotShop education version ~19,999 CAD. 5Ah battery gives ~80 min active use.Price detailsKepler base price 30,000 USD; China price 248,000 RMB.
CommercialAvailabilityProduction from 09.2025, industrial trials
On saleStatusOn sale
Schools, labs, competitionsCustomersZhaofeng Motor (pilot)
Education, robot soccer (KidSize)Used forManufacturing, warehousing, logistics, research
What it has shown (our assessment)
Runs, recovers from pushes, gets upLocomotionWalks slowly on flat floors
No real manipulationManipulationTwo-handed work in real settings
Simple gripperHandsHand with 6-11 joints
Learned AI policies in demosAutonomyLimited autonomy in demos
100+ robots at customersDeploymentPaid pilots with customers

Watch them

Lesson 1-2 - Booster K1 Unboxing Guide · Booster Robotics on YouTube
Kepler K2 “Bumblebee” | Slope Disturbance Rejection Challenge · Kepler Humanoid Robot on YouTube

What each has shown

Booster K1: children's humanoid football; competitions

Kepler K2 Bumblebee: loading parts at a car plant

FAQ

Which ranks higher, Booster K1 or Kepler K2 Bumblebee?

Kepler K2 Bumblebee ranks higher overall (40 vs 39, a 1-point gap).

Can you buy Booster K1 or Kepler K2 Bumblebee?

Booster K1: on sale. Kepler K2 Bumblebee: on sale.

Which costs less, Booster K1 or Kepler K2 Bumblebee?

Booster K1 about $4,211; Kepler K2 Bumblebee about $34,930.

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