ESP32-S3-Nano Microcontroller
5.0Editor score
Integrated 16MB Flash memory
Arduino IoT Cloud support
HID emulation via USB
In this guide
The Arduino Nano ESP32 represents a significant leap in microcontroller technology, combining powerful processing with seamless wireless connectivity for modern projects.
We evaluated ten top models based on performance, connectivity options, ease of use, and value to bring you a curated list of the most capable boards available.
Each pick highlights specific strengths for different use cases, from budget-friendly prototypes to premium feature-rich designs, keeping in mind that prices may vary.
Top 3 Picks for Best Arduino Nano ESP32
Arduino Nano ESP32 with Headers
4.6Editor score
Dual-core ESP32-S3 processor
Wi-Fi and Bluetooth 5.0
MicroPython and Arduino compatible
ESP32-P4-NANO Development Board
4.8Editor score
RISC-V dual-core processors
MIPI-CSI and DSI interfaces
Advanced image voice processing
Top 10 Best Arduino Nano ESP32 in 2026 Compared
This side-by-side comparison breaks down the key specifications and unique features of each model to help you quickly identify the best fit for your needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Arduino Nano ESP32 with Headers
ESP32-S3 Dual Core
Wi-Fi + Bluetooth 5.0
USB-C Port
MicroPython Compatible
4.6Editor score
Editor's Choice
ESP32-S3-Nano Microcontroller
ESP32-S3R8 Chip
16MB Flash Memory
Arduino IoT Cloud
HID Support
5.0Editor score
Best Premium
Seeed Studio XIAO ESP32S3
ESP32-S3 Dual Core
Battery Charge Supported
Ultra Compact Design
BLE 5.0
4.7Editor score
ESP32-P4-NANO Development Board
RISC-V Dual Core
MIPI Interfaces
32MB PSRAM
Image Processing
4.8Editor score
Waveshare 3PCS ESP32-S3 Mini
ESP32-S3FH4R2
240MHz Frequency
Castellated Module
Low Power Modes
4.4Editor score
ELEGOO ESP-32 Super Starter Kit
ESP-32 Board
35+ Modules
Step by Step Tutorials
Arduino IDE Compatible
4.3Editor score
Arduino Nano 33 IoT
ARM Cortex-M0+
Secure Element
256KB Flash
Pre-soldered Headers
4.5Editor score
ESP-WROOM-32 ESP32 Dev Board
Dual-Mode WiFi Bluetooth
AP STA Modes
Ultra-Low Power
FreeRTOS Support
4.4Editor score
ELEGOO 3PCS ESP-32 Dev Boards
Dual-Core 240 MHz
USB-C Programming
Over-the-Air Update
CP2102 Chip
4.7Editor score
Arduino UNO R4 WiFi
Renesas RA4M1 + ESP32-S3
12-bit DAC
CAN Bus Support
12×8 LED Matrix
4.7Editor score
1. Arduino Nano ESP32 with Headers – Best Overall Arduino Nano ESP32
Arduino Nano ESP32 with Headers
ESP32-S3 Dual Core
Wi-Fi and Bluetooth 5.0
USB-C for Power
MicroPython Support
The Arduino Nano ESP32 is a high-performance microcontroller board designed for complex IoT and embedded applications that require robust processing power.
Pros
- Powerful high performance processor
- Excellent wireless connectivity options
- Modern USB-C port interface
- HID support for peripherals
- Easy MicroPython programming
Cons
- Higher price than generic boards
- Requires learning new frameworks
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It features the ESP32-S3 chip with a dual-core processor running at 240 MHz, providing excellent capabilities for machine learning and real-time data processing at the edge.
While it offers advanced features like USB-C and HID support, some users might find the pricing higher than generic alternatives, though the ecosystem support justifies the cost.
This board is ideal for developers who need reliable wireless connectivity and modern interfaces for building smart home systems, wearables, or custom input devices.
Advanced Wireless Connectivity
The board supports both Wi-Fi and Bluetooth 5.0, allowing seamless communication with other devices and cloud platforms for remote monitoring.
Versatile Programming Options
Users can choose between traditional C/C++ development or MicroPython for a more streamlined scripting experience suitable for rapid prototyping.
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2. ESP32-S3-Nano Microcontroller – Best Value Arduino Nano ESP32
ESP32-S3-Nano Microcontroller
ESP32-S3R8 Chip
16MB Flash Memory
Arduino IoT Cloud
HID Emulation
This ESP32-S3-Nano board offers exceptional value with its onboard ESP32-S3R8 chip and generous memory allocation for storage and active processing tasks.
Pros
- Affordable price point
- Large Flash and PSRAM
- Direct Cloud integration
- Supports Arduino and Python
- High user rating
Cons
- Fewer physical interfaces
- Requires external antenna for range
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It supports switching between Arduino and MicroPython seamlessly, making it flexible for both beginners and advanced users who need IoT Cloud connectivity for remote management.
The main trade-off is a simpler physical layout compared to more premium boards, which may require additional components for complex I/O needs.
Budget-conscious makers will appreciate the high memory capacity and cloud features that are often reserved for more expensive development boards.
Cloud Integration Ready
Built-in support for Arduino IoT Cloud allows you to monitor and control your project remotely using the dedicated app.
Memory Rich Design
With 16MB Flash and 8MB PSRAM, you have ample space for storing data and running complex applications without external memory.
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3. Seeed Studio XIAO ESP32S3 – Best Compact Arduino Nano ESP32
Seeed Studio XIAO ESP32S3
ESP32-S3 Dual Core
Battery Charge Supported
Thumb-sized Design
BLE 5.0
The Seeed Studio XIAO ESP32S3 is a thumb-sized board designed for space-constrained projects like wearables where size and power efficiency are paramount.
Pros
- Extremely compact footprint
- Built-in battery management
- Excellent RF performance
- Low power consumption modes
- Breadboard friendly
Cons
- Requires careful handling
- Small form factor limits pin access
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It offers a robust power design with lithium battery charge management and deep sleep modes consuming as little as 14 microamps for long-term battery operation.
While its small size makes it perfect for portable devices, it can be delicate to work with and limits direct access to GPIOs without soldering.
This board is perfect for robotics and IoT devices where minimizing physical volume without sacrificing wireless capabilities is a key requirement.
Optimized for Portability
Its compact design and low power consumption make it ideal for wearable technology and battery-powered sensors.
Strong Wireless Range
Supports 2.4GHz Wi-Fi and BLE 5.0 with the ability to connect an external antenna for over 100 meters range.
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4. ESP32-P4-NANO Development Board – Best Advanced Arduino Nano ESP32
ESP32-P4-NANO Development Board
RISC-V Dual Core
MIPI Interfaces
Advanced Image Processing
Rich Connectivity
This board stands out with its ESP32-P4 chip featuring RISC-V architecture and specialized interfaces like MIPI-CSI for high-speed camera and display connections.
Pros
- RISC-V architecture support
- MIPI camera interfaces
- Advanced image processing
- High memory and flash
- Extensive I/O options
Cons
- Complex to configure
- Premium price point
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It provides powerful image and voice processing capabilities with hardware accelerators, making it suitable for applications involving visual data recognition or analysis.
The complexity of the interface options and the premium price mean it is best suited for experienced developers working on advanced multimedia projects.
For those needing hardware-level security and high-performance video processing, this board offers a unique and powerful platform in the microcontroller space.
Media Processing Capabilities
Onboard codecs and accelerators support JPEG, H264, and image signal processing for complex multimedia applications.
Rich Peripheral Interface
Includes USB 2.0 OTG, Ethernet, and TF card slots, providing a versatile connection for various external devices.
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5. Waveshare 3PCS ESP32-S3 Mini – Best Modular Arduino Nano ESP32
Waveshare 3PCS ESP32-S3 Mini
ESP32-S3FH4R2
240MHz Frequency
Castellated Module
Low Power Modes
Waveshare offers these ESP32-S3 Mini boards in a triple pack, featuring a castellated module design that allows direct soldering onto custom carrier boards for integration.
Pros
- Sold in triple packs
- Castellated module design
- Direct carrier board soldering
- Independent power supply control
- Compact size
Cons
- No USB port onboard
- Requires external programming hardware
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They are equipped with the ESP32-S3FH4R2 chip and offer flexible power supply settings to optimize energy efficiency in different operating scenarios.
The lack of a built-in USB port means you will need an external programmer to upload code, which adds a step to the development workflow.
This solution is ideal for production or custom PCB designs where minimizing the footprint of the wireless module is a critical design constraint.
Integration Ready Design
The castellated pads allow you to solder the module directly onto your own PCB for compact custom electronics.
Flexible Power Management
Independent setting of module power supply and clock helps reduce energy consumption in battery-driven systems.
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6. ELEGOO ESP-32 Super Starter Kit – Best Kit Arduino Nano ESP32
ELEGOO ESP-32 Super Starter Kit
ESP-32 Board Included
35+ Modules
Step by Step Tutorials
Arduino IDE Compatible
This Super Starter Kit includes a powerful ESP-32 board alongside over 35 modules like sensors, displays, and motors to facilitate hands-on learning and experimentation.
Pros
- All-in-one learning kit
- Over 35 components
- Detailed tutorials provided
- Good for beginners
- Wide project range
Cons
- Basic ESP-32 chip
- No Wi-Fi 5 or BLE 5
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It comes with step-by-step online tutorials and code examples that help students and hobbyists master electronics and coding without prior experience.
The ESP-32 board here is a standard model with Bluetooth 4.2, which lacks the newer BLE 5.0 features found in the more advanced Nano variants.
For absolute beginners who want a complete package to learn IoT fundamentals, this kit provides an excellent foundation and a smooth entry point into the hobby.
Comprehensive Learning Path
Access to over 30 projects with clear diagrams and instructions helps build skills progressively.
All Essential Components
Includes necessary sensors and actuators like OLED screens, servo motors, and input devices in one box.
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7. Arduino Nano 33 IoT – Best Secure Arduino Nano ESP32
Arduino Nano 33 IoT
ARM Cortex-M0+
Secure Element
256KB Flash
Pre-soldered Headers
The Arduino Nano 33 IoT is a compact board that prioritizes security with a built-in u-blox ATECC608A Secure Element for hardware-level encryption.
Pros
- Hardware-level encryption
- Pre-soldered headers
- Compact form factor
- Secure cloud communication
- Arduino IDE support
Cons
- Older ARM processor
- Lower clock speed
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It features a SAMD21 ARM Cortex-M0+ processor running at 48 MHz and includes Wi-Fi and Bluetooth Low Energy for connecting to cloud platforms.
While it lacks the high clock speed of the newer ESP32-S3 boards, its security features make it a reliable choice for sensitive data applications.
This board is best for users who need secure IoT connectivity and the ease of use that comes with pre-soldered headers and standard Arduino IDE support.
Robust Security
The secure element ensures data privacy and safe communication, which is vital for professional IoT deployments.
User Friendly Headers
Pre-soldered headers allow quick connection to breadboards without the need for additional soldering equipment.
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8. ESP-WROOM-32 ESP32 Dev Board – Best Classic Arduino Nano ESP32
ESP-WROOM-32 ESP32 Dev Board
2.4GHz Dual Mode
AP STA Modes
Ultra-Low Power
FreeRTOS Support
These ESP-WROOM-32 development boards are a classic choice that provides the original ESP32 dual-mode capabilities at a reliable and accessible price point.
Pros
- Classic ESP32 reliability
- Sold in 3 packs
- Integrated antenna
- Compatible with IDE
- Low power modes
Cons
- Older BLE 4.2 spec
- Larger than Nano variants
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They integrate a full RF amplifier and filter with the antenna, supporting AP and STA modes for flexible network configurations without extra hardware.
While they are not as compact as the Nano variants and use older Bluetooth standards, they remain a solid workhorse for general IoT and hobbyist projects.
This option is great for those who prefer a robust and well-documented platform with extensive community support and compatibility with Arduino IDE.
Flexible Network Modes
Supports AP, STA, and AP+STA modes allowing for versatile Wi-Fi setup options for different project needs.
Proven Performance
The classic ESP32 architecture is well understood with a vast library of existing tutorials and code examples.
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9. ELEGOO 3PCS ESP-32 Dev Boards – Best Easy Arduino Nano ESP32
ELEGOO 3PCS ESP-32 Dev Boards
Dual-Core 240 MHz
USB-C Programming
Over-the-Air Update
CP2102 Chip
These boards offer a modern USB-C connection for programming and power, streamlining the workflow compared to micro-USB alternatives while maintaining a classic ESP32 core.
Pros
- USB-C for easy upload
- Triple pack value
- OTA update support
- 240 MHz dual-core
- CP2102 serial chip
Cons
- Older Bluetooth 4.2
- Less modern design
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They support Over-the-Air updates, allowing you to update firmware remotely over Wi-Fi without needing to reconnect the board physically for every revision.
The Bluetooth standard here is 4.2, which is older than the BLE 5.0 found on the newer Nano models, but still functional for many standard applications.
Purchasing a three-pack provides excellent value for groups or when building multiple identical sensors, ensuring consistent performance across your devices.
Convenient Upload
USB-C simplifies cable management and ensures a secure connection for stable data transfer during programming.
Remote Updates
OTA functionality is crucial for maintaining deployed devices without physical access for firmware upgrades.
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10. Arduino UNO R4 WiFi – Best All-Rounder Arduino Nano ESP32
Arduino UNO R4 WiFi
Renesas RA4M1 + ESP32-S3
12-bit DAC
CAN Bus Support
12×8 LED Matrix
The Arduino UNO R4 WiFi combines a Renesas RA4M1 microcontroller with an ESP32-S3 chip, offering powerful dual-core processing for complex logic and communication tasks.
Pros
- Dual processor core
- Built-in LED matrix
- CAN bus support
- OP-AMP and DAC
- Qwiic connector
Cons
- Larger than Nano boards
- Requires more power
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It features unique hardware like a 12-bit DAC, an OP-AMP, and a built-in 12×8 LED matrix, making it versatile for projects requiring analog precision and visual feedback.
The inclusion of CAN bus support extends its utility to industrial and automotive applications, which are typically beyond the scope of standard microcontrollers.
While it is larger than the Nano form factor, the rich feature set makes it a fantastic all-rounder for advanced prototypes and educational projects alike.
Enhanced Analog Output
The 12-bit DAC and OP-AMP provide high precision analog signal generation for audio or sensor control.
Industrial Connectivity
CAN support allows for reliable communication in industrial or automotive systems using standard protocols.
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Buying Guide – How to Choose the Best Arduino Nano ESP32
Selecting the right board depends on your specific project needs, balancing performance with size and connectivity requirements.
Processor Performance
Different boards use different chips like the ESP32-S3, ESP32-P4, or ARM Cortex-M0+. The ESP32-S3 offers a good balance of speed and power for most projects, while the ESP32-P4 provides advanced capabilities for image processing.
Choose a processor that matches your computational needs to avoid bottlenecks in complex applications.
Connectivity Options
Modern boards offer Wi-Fi and Bluetooth 5.0, but some older models still use Bluetooth 4.2. If you need long-range or low-energy connections, ensure the board supports the latest BLE standards.
Verify the specific protocol support to ensure compatibility with your existing smart home devices or networks.
Physical Size
Nano variants are extremely compact and ideal for wearable or portable projects, but they may lack robust headers. Larger boards like the UNO R4 offer more features but take up more space.
Consider the physical dimensions based on whether you need portability or more robust connection points.
Power Management
Battery-powered projects require boards with deep sleep modes and efficient power regulation. Look for boards that mention low consumption microamps and battery charge management features.
Efficient power design ensures longer device life without frequent battery replacements.
Programming Language
Some boards support MicroPython for easier scripting, while others are primarily designed for C/C++ in the Arduino IDE. Choose based on your comfort level and project complexity.
Python support can speed up development for beginners or prototyping phases significantly.
Specialized Interfaces
For audio or visual projects, look for boards with DACs, OP-AMPs, or MIPI interfaces. Standard boards may lack these dedicated hardware components.
Specialized interfaces save time and external components when integrating sensors or displays.
Expansion Capabilities
Check if the board has Qwiic connectors, CAN bus, or castellated pins for carrier boards. These features determine how easily you can expand functionality.
Expansion options are crucial if you plan to add multiple sensors or communicate with industrial networks.
Budget and Packaging
Prices vary significantly, and some boards are sold in packs which offers better value for bulk usage. Ensure you account for any required accessories like cables or programmers.
Buying a set can be more cost-effective if you need multiple identical units for a network.
How to Use and Care for Your Arduino Nano ESP32
To use your board, connect it to your computer via USB-C or micro-USB and install the Arduino IDE. Select the correct board type and COM port from the tools menu to prepare for coding.
When coding, start with simple blink sketches to verify connectivity before moving to complex IoT logic. Use the provided libraries to handle Wi-Fi connections and data transmission efficiently.
For physical care, handle the board by its edges to avoid damaging the sensitive components. Store it in a dry place and avoid exposing the pins to static electricity during soldering.
Frequently Asked Questions
What is the main advantage of the ESP32-S3 chip?
The ESP32-S3 offers a dual-core processor with support for AI instructions, making it faster and more capable of handling machine learning tasks compared to older models. It also supports Bluetooth 5.0 for better range and efficiency.
Do all these boards support MicroPython?
Most of the newer ESP32-S3 boards support MicroPython, but standard older models might require a specific firmware update. Check the product description to confirm compatibility with your preferred language.
Can I use these boards with the Arduino IDE?
Yes, almost all boards listed are compatible with the Arduino IDE. You may need to install additional board managers via the preferences menu to enable support for specific chipsets.
Why choose a Nano form factor over a standard Uno?
Nano boards are significantly smaller and lighter, making them ideal for wearable devices or projects where space is limited. They also save weight which is crucial for drones or mobile robots.
What is the best board for battery projects?
The Seeed Studio XIAO ESP32S3 is excellent for battery projects due to its specialized power management and very low consumption in deep sleep modes. This extends battery life significantly.
Are these boards suitable for beginners?
Yes, especially the starter kits and standard Nano boards. They come with extensive documentation and community support, making them easy to learn on even with no prior electronics experience.
How do I update firmware wirelessly?
Wireless updates require the board to have OTA support, which many newer models like the ELEGOO ESP-32 Dev Boards feature. This allows you to push code changes over Wi-Fi without physical connections.
What is the difference between ESP32 and ESP32-S3?
The ESP32-S3 is an upgraded version that offers a more powerful dual-core processor, better Wi-Fi and Bluetooth support, and added security features. It is generally faster and more reliable for modern projects.
Final Thoughts on Choosing the Best Arduino Nano ESP32
We highlighted the Arduino Nano ESP32 as the top overall choice for its balance of power and connectivity, while the ESP32-S3-Nano offers excellent value for budget projects.
Prioritize the specific features you need such as battery management or specialized interfaces to ensure the board fits your long-term goals.
Always check current prices and availability before purchasing as these can fluctuate based on market demand and stock levels.