Part comparison

Arduino Uno Rev3 vs Arduino Nano R4

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

11 shared specs2 scored

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ArduinoArduino Uno Rev3A000066

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ArduinoArduino Nano R4ABX00142

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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

11 specifications compared side by side.

Arduino Uno Rev3 / Arduino Nano R4
Compare bySpecification	AArduinoArduino Uno Rev3	BArduinoArduino Nano R4
Electrical1
Logic voltage	5 V	5 V
Control & communication10
Board kind	Main controller	Main controller
Board architectureUse-dependent	Microcontroller board	Standalone board
Primary applicationUse-dependent	education;robotics;embedded_control	embedded_control;industrial_automation;robotics
Processor vendorUse-dependent	Microchip	Renesas
ProcessorUse-dependent	ATmega328P	RA4M1
Processor clock	16 MHz	48 MHz32 MHz higher
USB interfaces	1	1
Communication interfacesUse-dependent	USB;GPIO	CAN (external transceiver required);I2C;USB-C
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	ATmega328P	RA4M1

AArduinoArduino Uno Rev3

BArduinoArduino Nano R4

Electrical1

Logic voltage

Part A5 V

Part B5 V

Control & communication10

Board kind

Part AMain controller

Part BMain controller

Board architectureUse-dependent

Part AMicrocontroller board

Part BStandalone board

Primary applicationUse-dependent

Part Aeducation;robotics;embedded_control

Part Bembedded_control;industrial_automation;robotics

Processor vendorUse-dependent

Part AMicrochip

Part BRenesas

ProcessorUse-dependent

Part AATmega328P

Part BRA4M1

Processor clock

Part A16 MHz

Part B48 MHz32 MHz higher

USB interfaces

Part A1

Part B1

Communication interfacesUse-dependent

Part AUSB;GPIO

Part BCAN (external transceiver required);I2C;USB-C

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part AATmega328P

Part BRA4M1

Product sources

Product sources used by this comparison

Arduino Uno Rev3Open source ↗

Arduino Nano R4Open source ↗