Part comparison

Arduino UNO R4 WiFi vs Arduino Nano 33 BLE Rev2

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

23 shared specs8 scored

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ArduinoArduino UNO R4 WiFiABX00087

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ArduinoArduino Nano 33 BLE Rev2ABX00071

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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

23 specifications compared side by side.

Arduino UNO R4 WiFi / Arduino Nano 33 BLE Rev2
Compare bySpecification	AArduinoArduino UNO R4 WiFi	BArduinoArduino Nano 33 BLE Rev2
Electrical3
Minimum input voltageUse-dependent	6 V	5 V
Maximum input voltageUse-dependent	24 V	18 V
Logic voltageUse-dependent	5 V	3.3 V
Control & communication20
Board kind	Main controller	Main controller
Board architectureUse-dependent	Microcontroller board	Standalone board
Primary applicationUse-dependent	education;robotics;wireless_embedded_control	embedded_control;wearable;mobile_robot
Processor vendorUse-dependent	Renesas;Espressif	Nordic Semiconductor
ProcessorUse-dependent	RA4M1;ESP32-S3	nRF52840
Processor architectureUse-dependent	ARM Cortex-M4;Xtensa LX7	Arm Cortex-M4
Processor cores	32 higher	1
Processor clock	240 MHz176 MHz higher	64 MHz
RAM	0.5195 MB0.2695 MB higher	0.25 MB
Flash	0.25 MB	1 MB0.75 MB higher
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
UART interfaces	1	1
I2C interfaces	1	1
SPI interfaces	1	1
GPIO	14	14
Wireless interfacesUse-dependent	Wi-Fi;Bluetooth	Bluetooth LE
Communication interfacesUse-dependent	Wi-Fi;Bluetooth;UART;I2C;SPI;USB	UART;I2C;SPI;Bluetooth LE
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	RA4M1;ESP32-S3	nRF52840

AArduinoArduino UNO R4 WiFi

BArduinoArduino Nano 33 BLE Rev2

Electrical3

Minimum input voltageUse-dependent

Part A6 V

Part B5 V

Maximum input voltageUse-dependent

Part A24 V

Part B18 V

Logic voltageUse-dependent

Part A5 V

Part B3.3 V

Control & communication20

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;wearable;mobile_robot

Processor vendorUse-dependent

Part ARenesas;Espressif

Part BNordic Semiconductor

ProcessorUse-dependent

Part ARA4M1;ESP32-S3

Part BnRF52840

Processor architectureUse-dependent

Part AARM Cortex-M4;Xtensa LX7

Part BArm Cortex-M4

Processor cores

Part A32 higher

Part B1

Processor clock

Part A240 MHz176 MHz higher

Part B64 MHz

RAM

Part A0.5195 MB0.2695 MB higher

Part B0.25 MB

Flash

Part A0.25 MB

Part B1 MB0.75 MB higher

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

GPIO

Part A14

Part B14

Wireless interfacesUse-dependent

Part AWi-Fi;Bluetooth

Part BBluetooth LE

Communication interfacesUse-dependent

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

Part BUART;I2C;SPI;Bluetooth LE

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part ARA4M1;ESP32-S3

Part BnRF52840

Product sources

Product sources used by this comparison

Arduino UNO R4 WiFiOpen source ↗

Arduino Nano 33 BLE Rev2Open source ↗