Part comparison

Arduino Nano 33 IoT vs Arduino Nano R4

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

13 shared specs1 scored

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ArduinoArduino Nano 33 IoTABX00027

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ArduinoArduino Nano R4ABX00142

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Directional spec summary

Counts across 1 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

13 specifications compared side by side.

Arduino Nano 33 IoT / Arduino Nano R4
Compare bySpecification	AArduinoArduino Nano 33 IoT	BArduinoArduino Nano R4
Electrical1
Logic voltageUse-dependent	3.3 V	5 V
Control & communication12
Board kind	Main controller	Main controller
Board architecture	Standalone board	Standalone board
Primary applicationUse-dependent	embedded_control;iot;mobile_robot	embedded_control;industrial_automation;robotics
Processor vendorUse-dependent	Microchip	Renesas
ProcessorUse-dependent	SAMD21	RA4M1
Processor architectureUse-dependent	Arm Cortex-M0+	Arm Cortex-M4
Processor cores	1	1
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
Communication interfacesUse-dependent	Wi-Fi;Bluetooth LE	CAN (external transceiver required);I2C;USB-C
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	SAMD21	RA4M1

AArduinoArduino Nano 33 IoT

BArduinoArduino Nano R4

Electrical1

Logic voltageUse-dependent

Part A3.3 V

Part B5 V

Control & communication12

Board kind

Part AMain controller

Part BMain controller

Board architecture

Part AStandalone board

Part BStandalone board

Primary applicationUse-dependent

Part Aembedded_control;iot;mobile_robot

Part Bembedded_control;industrial_automation;robotics

Processor vendorUse-dependent

Part AMicrochip

Part BRenesas

ProcessorUse-dependent

Part ASAMD21

Part BRA4M1

Processor architectureUse-dependent

Part AArm Cortex-M0+

Part BArm Cortex-M4

Processor cores

Part A1

Part B1

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

Communication interfacesUse-dependent

Part AWi-Fi;Bluetooth LE

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

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part ASAMD21

Part BRA4M1

Product sources

Product sources used by this comparison

Arduino Nano 33 IoTOpen source ↗

Arduino Nano R4Open source ↗