Part comparison

Arduino UNO R4 Minima vs Arduino UNO R4 WiFi

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

25 shared specs8 scored

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ArduinoArduino UNO R4 MinimaABX00080

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ArduinoArduino UNO R4 WiFiABX00087

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Directional spec summary

Counts across 8 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

25 specifications compared side by side.

Arduino UNO R4 Minima / Arduino UNO R4 WiFi
Compare bySpecification	AArduinoArduino UNO R4 Minima	BArduinoArduino UNO R4 WiFi
Electrical3
Minimum input voltage	6 V	6 V
Maximum input voltage	24 V	24 V
Logic voltage	5 V	5 V
Control & communication22
Board kind	Main controller	Main controller
Board architecture	Microcontroller board	Microcontroller board
Primary applicationUse-dependent	education;robotics;embedded_control	education;robotics;wireless_embedded_control
Processor vendorUse-dependent	Renesas	Renesas;Espressif
ProcessorUse-dependent	RA4M1	RA4M1;ESP32-S3
Processor architectureUse-dependent	ARM Cortex-M4	ARM Cortex-M4;Xtensa LX7
Processor clock	48 MHz	240 MHz192 MHz higher
RAM	0.0313 MB	0.5195 MB0.4883 MB higher
Flash	0.25 MB	0.25 MB
Open-source hardware	Yes	Yes
Open-source firmware	Yes	Yes
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
UART interfaces	1	1
I2C interfaces	1	1
SPI interfaces	1	1
USB interfaces	1	1
GPIO	14	14
Communication interfacesUse-dependent	UART;I2C;SPI;USB	Wi-Fi;Bluetooth;UART;I2C;SPI;USB
CertificationsUse-dependent	UKCA;FCC;REACH;CE;RoHS;RCM;ISED/IC	UKCA;FCC;REACH;CE;RCM;MIC;ISED/IC;KC
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	RA4M1	RA4M1;ESP32-S3

AArduinoArduino UNO R4 Minima

BArduinoArduino UNO R4 WiFi

Electrical3

Minimum input voltage

Part A6 V

Part B6 V

Maximum input voltage

Part A24 V

Part B24 V

Logic voltage

Part A5 V

Part B5 V

Control & communication22

Board kind

Part AMain controller

Part BMain controller

Board architecture

Part AMicrocontroller board

Part BMicrocontroller board

Primary applicationUse-dependent

Part Aeducation;robotics;embedded_control

Part Beducation;robotics;wireless_embedded_control

Processor vendorUse-dependent

Part ARenesas

Part BRenesas;Espressif

ProcessorUse-dependent

Part ARA4M1

Part BRA4M1;ESP32-S3

Processor architectureUse-dependent

Part AARM Cortex-M4

Part BARM Cortex-M4;Xtensa LX7

Processor clock

Part A48 MHz

Part B240 MHz192 MHz higher

RAM

Part A0.0313 MB

Part B0.5195 MB0.4883 MB higher

Flash

Part A0.25 MB

Part B0.25 MB

Open-source hardware

Part AYes

Part BYes

Open-source firmware

Part AYes

Part BYes

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

UART interfaces

Part A1

Part B1

I2C interfaces

Part A1

Part B1

SPI interfaces

Part A1

Part B1

USB interfaces

Part A1

Part B1

GPIO

Part A14

Part B14

Communication interfacesUse-dependent

Part AUART;I2C;SPI;USB

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

CertificationsUse-dependent

Part AUKCA;FCC;REACH;CE;RoHS;RCM;ISED/IC

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

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part ARA4M1

Part BRA4M1;ESP32-S3

Product sources

Product sources used by this comparison

Arduino UNO R4 MinimaOpen source ↗

Arduino UNO R4 WiFiOpen source ↗