Part comparison

ROBOTIS PH42-020-S300-R vs ROBOTIS XM540-W270

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

9 shared specs2 scored

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

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ROBOTISROBOTIS XM540-W270XM540-W270

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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 PH42-020-S300-R / ROBOTIS XM540-W270
Compare bySpecification	AROBOTISROBOTIS PH42-020-S300-R	BROBOTISROBOTIS XM540-W270
Physical1
Weight	340 g	165 g175 g lower
Performance1
Maximum speed	32.7 rpm4.7 rpm higher	28 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	303.75:1	272.5:1
Control & communication3
Encoder	integrated position sensor	integrated position sensor
Communication interfaces	RS485	RS485
Control modes	position;velocity;current/PWM;feedback	position;velocity;current/PWM;feedback

AROBOTISROBOTIS PH42-020-S300-R

BROBOTISROBOTIS XM540-W270

Physical1

Weight

Part A340 g

Part B165 g175 g lower

Performance1

Maximum speed

Part A32.7 rpm4.7 rpm higher

Part B28 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 A303.75:1

Part B272.5:1

Control & communication3

Encoder

Part Aintegrated position sensor

Part Bintegrated position sensor

Communication interfaces

Part ARS485

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 PH42-020-S300-ROpen source ↗

ROBOTIS XM540-W270Open source ↗