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Seeed Studio XIAO ESP32S3 Sense with camera module
Seeed Studio

Seeed Studio XIAO ESP32S3 Sense

Expert rating7.5 / 10

Single-board ComputersView on seeedstudio.com
Processor:
Espressif ESP32-S3
Camera:
OV2640
Memory:
8MB PSRAM
Wireless:
WiFi
Form Factor:
Thumb-sized

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Manufacturer: Seeed Studio Last updated: September 11, 2026

Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML) Review

The XIAO ESP32S3 Sense shrinks a camera-equipped, microphone-equipped ML dev board down to thumb size, making it one of the smallest and cheapest ways to prototype TinyML and embedded computer-vision projects.

At roughly the size of a postage stamp, the XIAO Sense fits into wearable, drone, and space-constrained embedded projects that a full-size dev board like the M5Stack CoreS3 simply can't.

Genuinely Pocket-Sized

At roughly the size of a postage stamp, the XIAO Sense fits into wearable, drone, and space-constrained embedded projects that a full-size dev board like the M5Stack CoreS3 covered in this batch simply can't.

Camera and Mic in a Tiny Footprint

An OV2640 camera sensor, a digital microphone, and 8MB of PSRAM are packed onto the small add-on "Sense" expansion board, giving it real computer-vision and audio capability despite the size.

Comparison to Alternatives

Against the M5Stack CoreS3 covered in this batch, the XIAO Sense trades a touchscreen and richer onboard sensor suite for a dramatically smaller footprint and lower price, better suited to wearables and space-constrained builds. Against the Raspberry Pi Pico 2 covered in this batch, the XIAO Sense adds a camera and WiFi/Bluetooth connectivity that the Pico 2 lacks out of the box.

Specifications

Identity

BrandSeeed Studio
Memory8 GB
ModelXIAO ESP32S3 Sense
SoCEspressif ESP32-S3
ProcessorDual-core Xtensa LX7
CameraOV2640
ConnectivityWiFi, Bluetooth 5.0 (BLE)
Form FactorThumb-sized

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating7.5 / 10

A postage-stamp-sized camera and mic ML board for wearables and other space-constrained builds.

Best for

  • Wearable, drone, and space-constrained embedded ML projects needing a camera in the smallest possible footprint.

Not for

  • Projects needing a display or the richer sensor suite of a larger dev kit.

FAQs

What are the key specifications of the Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML)?

The Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML) is a single board computer from Seeed Studio. Key specs: SoC Espressif ESP32-S3, Processor Dual-core Xtensa LX7, Camera OV2640, Memory 8MB PSRAM, 8MB flash, Connectivity WiFi, Bluetooth 5.0 (BLE).

Will the Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML) work with my current setup?

The Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML) lists SoC is Espressif ESP32-S3. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML) best suited to?

It suits wearable, drone, and space-constrained embedded ml projects needing a camera in the smallest possible footprint..

What are the drawbacks of the Seeed Studio XIAO ESP32S3 Sense (IoT Dev Board/Espressif ESP32-S3/Dual-Core Xtensa LX7/OV2640 Camera/Thumb-Sized TinyML)?

It is a poor fit for projects needing a display or the richer sensor suite of a larger dev kit..

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