Part comparison

Blue Bird BMS-A10H vs KST BLS815

A side-by-side comparison of source-backed specifications within the same subcategory.

12 shared specs4 scored

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Blue BirdBlue Bird BMS-A10HBMS-A10H

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KSTKST BLS815BLS815

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Directional spec summary

Counts across 4 numeric specifications with a clear higher-or-lower direction.

Part A leads

Tied

Part B leads

These are metric-by-metric differences, not an overall performance score. Check the values below.

Specifications

12 specifications compared side by side.

Blue Bird BMS-A10H / KST BLS815
Compare bySpecification	ABlue BirdBlue Bird BMS-A10H	BKSTKST BLS815
Physical1
Weight	7.4 g62.6 g lower	70 g
Performance3
Stall torque	0.314 Nm	1.961 Nm1.647 Nm higher
Stall torque @ 8.4V	3.2 kg·cm	20 kg·cm16.8 kg·cm higher
Speed @ 8.4V	0.07 s/60°	0.07 s/60°
Electrical1
Maximum voltage	8.4 V	8.4 V
Mechanical & integration3
Motor kind	Rc servo	Rc servo
Drive principle	servo actuator	servo actuator
Architecture	Integrated servo module	Integrated servo module
Control & communication3
Communication interfaces	PWM	PWM
Control modes	PWM servo	PWM servo
Servo signal	PWM	PWM
Other specifications1
PWM pulse center	1500 µs	1500 µs

ABlue BirdBlue Bird BMS-A10H

BKSTKST BLS815

Physical1

Weight

Part A7.4 g62.6 g lower

Part B70 g

Performance3

Stall torque

Part A0.314 Nm

Part B1.961 Nm1.647 Nm higher

Stall torque @ 8.4V

Part A3.2 kg·cm

Part B20 kg·cm16.8 kg·cm higher

Speed @ 8.4V

Part A0.07 s/60°

Part B0.07 s/60°

Electrical1

Maximum voltage

Part A8.4 V

Part B8.4 V

Mechanical & integration3

Motor kind

Part ARc servo

Part BRc servo

Drive principle

Part Aservo actuator

Part Bservo actuator

Architecture

Part AIntegrated servo module

Part BIntegrated servo module

Control & communication3

Communication interfaces

Part APWM

Part BPWM

Control modes

Part APWM servo

Part BPWM servo

Servo signal

Part APWM

Part BPWM

Other specifications1

PWM pulse center

Part A1500 µs

Part B1500 µs

Product sources

Product sources used by this comparison

Blue Bird BMS-A10HOpen source ↗

KST BLS815Open source ↗