Part comparison

Arduino UNO R4 WiFi vs Arduino Nano

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

19 shared specs5 scored

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ArduinoArduino UNO R4 WiFiABX00087

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ArduinoArduino NanoA000005

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Directional spec summary

Counts across 5 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

19 specifications compared side by side.

Arduino UNO R4 WiFi / Arduino Nano
Compare bySpecification	AArduinoArduino UNO R4 WiFi	BArduinoArduino Nano
Electrical3
Minimum input voltageUse-dependent	6 V	7 V
Maximum input voltageUse-dependent	24 V	12 V
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;robotics
Processor vendorUse-dependent	Renesas;Espressif	Microchip
ProcessorUse-dependent	RA4M1;ESP32-S3	ATmega328
Processor architectureUse-dependent	ARM Cortex-M4;Xtensa LX7	AVR
Processor cores	32 higher	1
Processor clock	240 MHz224 MHz higher	16 MHz
RAM	0.5195 MB0.5175 MB higher	0.002 MB
Flash	0.25 MB0.218 MB higher	0.032 MB
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
GPIO	14	14
Communication interfacesUse-dependent	Wi-Fi;Bluetooth;UART;I2C;SPI;USB	I2C
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	RA4M1;ESP32-S3	ATmega328

AArduinoArduino UNO R4 WiFi

BArduinoArduino Nano

Electrical3

Minimum input voltageUse-dependent

Part A6 V

Part B7 V

Maximum input voltageUse-dependent

Part A24 V

Part B12 V

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;robotics

Processor vendorUse-dependent

Part ARenesas;Espressif

Part BMicrochip

ProcessorUse-dependent

Part ARA4M1;ESP32-S3

Part BATmega328

Processor architectureUse-dependent

Part AARM Cortex-M4;Xtensa LX7

Part BAVR

Processor cores

Part A32 higher

Part B1

Processor clock

Part A240 MHz224 MHz higher

Part B16 MHz

RAM

Part A0.5195 MB0.5175 MB higher

Part B0.002 MB

Flash

Part A0.25 MB0.218 MB higher

Part B0.032 MB

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

GPIO

Part A14

Part B14

Communication interfacesUse-dependent

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

Part BI2C

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part ARA4M1;ESP32-S3

Part BATmega328

Product sources

Product sources used by this comparison

Arduino UNO R4 WiFiOpen source ↗

Arduino NanoOpen source ↗