Powerful ESP32-S3 Controller and Expanded Memory
The main controller of the M5StickS3 is the powerful ESP32-S3-PICO-1-N8R8. This provides 2.4 GHz Wi-Fi communication support, alongside 8 MB of flash memory and 8 MB of PSRAM. This expanded resource capacity enables the execution of more demanding programs and complex data processing with greater efficiency.

Enhanced Audio for Interactive Experiences
The M5StickS3 maintains its acclaimed HMI (Human-Machine Interface) features, including a 1.14-inch display, a 6-axis IMU sensor, and programmable buttons. A notable upgrade is the significantly enhanced audio circuit. The combination of an ES8311 codec, a high-sensitivity MEMS microphone, and an AW8737 power amplifier achieves both clear voice capture and high-fidelity audio output. This advancement facilitates interactive experiences such as AI voice assistant dialogues and speech recognition.
Furthermore, the device includes IR transmit/receive functionality and a built-in 250 mAh lithium battery. These features allow for a wide range of development scenarios, from intuitive UI-driven smart home control to the creation of innovative AI devices, empowering engineers to bring their ideas to life.

M5StickS3 Specifications
| Feature | Specification |
|---|---|
| SoC | ESP32-S3-PICO-1-N8R8 (Xtensa LX7 Max 240MHz) |
| Flash | 8 MB |
| PSRAM | 8 MB |
| Wi-Fi | 2.4 GHz Wi-Fi |
| Power Input | USB Type-C DC 5 V |
| Display | 1.14-inch IPS-LCD (135 x 240) |
| Audio Codec | ES8311: 24 bit, I2S Protocol |
| Microphone | MEMS Microphone, SNR: 65 dB |
| Speaker | AW8737 Power Amplifier |
| IMU | BMI270 (6-axis) |
| Infrared (IR) | Transmit (TX) + Receive (RX) |
| Operating Temperature | 0 ~ 40°C |
| Battery | 250 mAh |
| Expansion Ports | Hat2 bus, HY2.0-4P, USB-C |
| Grove Load Capacity | No Load: 5 V |
| Current Consumption | Power Off: 4.2 V@14.02 uA |
| Product Dimensions | 48.0 x 24.0 x 15.0 mm |
| Product Weight | 31.3 g |
| Package Dimensions | 110.0 x 65.0 x 15.0 mm |
| Package Weight | 45.2 g |
Comparison with M5StickC Plus2
| Feature | StickS3 (This Product) | StickC-Plus2 |
|---|---|---|
| SoC | ESP32-S3-PICO-1-N8R8 (Xtensa LX7 Max 240MHz) | ESP32-PICO-V3-02 (Max 240MHz) |
| Flash Memory | 8MB | 8MB |
| RAM | PSRAM 8MB | PSRAM 2MB |
| Display | 1.14-inch IPS-LCD (135×240) | 1.14-inch IPS-LCD (135×240) |
| Audio | ES8311 Codec + 1W Speaker | Passive Buzzer |
| Microphone | MEMS Microphone | Microphone (SPM1423) |
| IMU (6-axis) | BMI270 | MPU6886 |
| Infrared (IR) | Transmit (TX) + Receive (RX) | Transmit (TX) only |
| RTC | Not included | BM8563 included |
| Battery | 250mAh | 200mAh |
| Expansion Ports | HAT2 bus (2×8) USB-C | HAT bus (1×8) USB-C |
| Size | 48.0 x 24.0 x 15.0mm | 48.0 x 24.0 x 13.5mm |
| Weight | 31.3g | 16.7g |
Sales Information
The M5StickS3 is available for purchase through the Switch Science web shop.

-
Model Number: M5STACK-K150
-
Product Name: M5StickS3 (ESP32S3 Mini IoT Development Kit)
-
Price (tax included): 4,290 JPY
-
Purchase Page: https://ssci.to/10921
About Switch Science
Switch Science aims to create a world where technology is a common tool accessible to more people. The company operates an electronic circuit module business, importing and developing electronic components, as well as a STEM educational materials business for children and educators. They also provide IoT development support for businesses focusing on hardware products. Switch Science is an authorized domestic reseller of Raspberry Pi and a general agent for M5Stack.
-
Corporate Information: https://info.switch-science.com/
-
X (formerly Twitter): https://x.com/ssci
-
Facebook: https://www.facebook.com/SwitchScience

