Part comparison

ROBOTIS RX-28 vs ROBOTIS XL-320

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

13 shared specs3 scored

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ROBOTISROBOTIS RX-28RX-28

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ROBOTISROBOTIS XL-320XL-320

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Directional spec summary

Counts across 3 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

13 specifications compared side by side.

ROBOTIS RX-28 / ROBOTIS XL-320
Compare bySpecification	AROBOTISROBOTIS RX-28	BROBOTISROBOTIS XL-320
Physical1
Weight	72 g	16.7 g55.3 g lower
Performance2
Stall torque	3.7 Nm3.31 Nm higher	0.39 Nm
Maximum speed	85 rpm	114 rpm29 rpm higher
Electrical3
Nominal voltageUse-dependent	14.8 V	7.4 V
Minimum voltageUse-dependent	12 V	6 V
Maximum voltageUse-dependent	18.5 V	8.4 V
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	193:1	238:1
Control & communication3
Encoder	integrated position sensor	integrated position sensor
Communication interfacesUse-dependent	RS485	TTL
Control modes	position;velocity;current/PWM;feedback	position;velocity;current/PWM;feedback

AROBOTISROBOTIS RX-28

BROBOTISROBOTIS XL-320

Physical1

Weight

Part A72 g

Part B16.7 g55.3 g lower

Performance2

Stall torque

Part A3.7 Nm3.31 Nm higher

Part B0.39 Nm

Maximum speed

Part A85 rpm

Part B114 rpm29 rpm higher

Electrical3

Nominal voltageUse-dependent

Part A14.8 V

Part B7.4 V

Minimum voltageUse-dependent

Part A12 V

Part B6 V

Maximum voltageUse-dependent

Part A18.5 V

Part B8.4 V

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 A193:1

Part B238:1

Control & communication3

Encoder

Part Aintegrated position sensor

Part Bintegrated position sensor

Communication interfacesUse-dependent

Part ARS485

Part BTTL

Control modes

Part Aposition;velocity;current/PWM;feedback

Part Bposition;velocity;current/PWM;feedback

Product sources

Product sources used by this comparison

ROBOTIS RX-28Open source ↗

ROBOTIS XL-320Open source ↗