Part comparison

Arduino UNO R4 WiFi vs Arduino Nano R4

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

17 shared specs4 scored

Start over

ArduinoArduino UNO R4 WiFiABX00087

View details

ArduinoArduino Nano R4ABX00142

View details

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

17 specifications compared side by side.

Arduino UNO R4 WiFi / Arduino Nano R4
Compare bySpecification	AArduinoArduino UNO R4 WiFi	BArduinoArduino Nano R4
Electrical1
Logic voltage	5 V	5 V
Control & communication16
Board kind	Main controller	Main controller
Board architectureUse-dependent	Microcontroller board	Standalone board
Primary applicationUse-dependent	education;robotics;wireless_embedded_control	embedded_control;industrial_automation;robotics
Processor vendorUse-dependent	Renesas;Espressif	Renesas
ProcessorUse-dependent	RA4M1;ESP32-S3	RA4M1
Processor architectureUse-dependent	ARM Cortex-M4;Xtensa LX7	Arm Cortex-M4
Processor cores	32 higher	1
Processor clock	240 MHz192 MHz higher	48 MHz
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
I2C interfaces	1	1
USB interfaces	1	1
Communication interfacesUse-dependent	Wi-Fi;Bluetooth;UART;I2C;SPI;USB	CAN (external transceiver required);I2C;USB-C
CertificationsUse-dependent	UKCA;FCC;REACH;CE;RCM;MIC;ISED/IC;KC	FCC;CE;UKCA;ISED;VCCI
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	RA4M1;ESP32-S3	RA4M1

AArduinoArduino UNO R4 WiFi

BArduinoArduino Nano R4

Electrical1

Logic voltage

Part A5 V

Part B5 V

Control & communication16

Board kind

Part AMain controller

Part BMain controller

Board architectureUse-dependent

Part AMicrocontroller board

Part BStandalone board

Primary applicationUse-dependent

Part Aeducation;robotics;wireless_embedded_control

Part Bembedded_control;industrial_automation;robotics

Processor vendorUse-dependent

Part ARenesas;Espressif

Part BRenesas

ProcessorUse-dependent

Part ARA4M1;ESP32-S3

Part BRA4M1

Processor architectureUse-dependent

Part AARM Cortex-M4;Xtensa LX7

Part BArm Cortex-M4

Processor cores

Part A32 higher

Part B1

Processor clock

Part A240 MHz192 MHz higher

Part B48 MHz

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

I2C interfaces

Part A1

Part B1

USB interfaces

Part A1

Part B1

Communication interfacesUse-dependent

Part AWi-Fi;Bluetooth;UART;I2C;SPI;USB

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

CertificationsUse-dependent

Part AUKCA;FCC;REACH;CE;RCM;MIC;ISED/IC;KC

Part BFCC;CE;UKCA;ISED;VCCI

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part ARA4M1;ESP32-S3

Part BRA4M1

Product sources

Product sources used by this comparison

Arduino UNO R4 WiFiOpen source ↗

Arduino Nano R4Open source ↗