Part comparison

ROBOTIS MX-12W vs ROBOTIS PH42-020-S300-R

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

9 shared specs2 scored

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ROBOTISROBOTIS MX-12WMX-12W

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ROBOTISROBOTIS PH42-020-S300-RPH42-020-S300-R

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Directional spec summary

Counts across 2 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

9 specifications compared side by side.

ROBOTIS MX-12W / ROBOTIS PH42-020-S300-R
Compare bySpecification	AROBOTISROBOTIS MX-12W	BROBOTISROBOTIS PH42-020-S300-R
Physical1
Weight	55 g285 g lower	340 g
Performance1
Maximum speed	470 rpm437.3 rpm higher	32.7 rpm
Mechanical & integration4
Motor kind	Smart servo	Smart servo
Drive principle	servo actuator	servo actuator
Architecture	Integrated motor controller reducer network	Integrated motor controller reducer network
Gear ratioUse-dependent	32:1	303.75:1
Control & communication3
Encoder	integrated position sensor	integrated position sensor
Communication interfacesUse-dependent	TTL	RS485
Control modes	position;velocity;current/PWM;feedback	position;velocity;current/PWM;feedback

AROBOTISROBOTIS MX-12W

BROBOTISROBOTIS PH42-020-S300-R

Physical1

Weight

Part A55 g285 g lower

Part B340 g

Performance1

Maximum speed

Part A470 rpm437.3 rpm higher

Part B32.7 rpm

Mechanical & integration4

Motor kind

Part ASmart servo

Part BSmart servo

Drive principle

Part Aservo actuator

Part Bservo actuator

Architecture

Part AIntegrated motor controller reducer network

Part BIntegrated motor controller reducer network

Gear ratioUse-dependent

Part A32:1

Part B303.75:1

Control & communication3

Encoder

Part Aintegrated position sensor

Part Bintegrated position sensor

Communication interfacesUse-dependent

Part ATTL

Part BRS485

Control modes

Part Aposition;velocity;current/PWM;feedback

Part Bposition;velocity;current/PWM;feedback

Product sources

Product sources used by this comparison

ROBOTIS MX-12WOpen source ↗

ROBOTIS PH42-020-S300-ROpen source ↗