ESP32-C6-WROOM-1 vs ESP32-S2-MINI-1

ESP32-C6-WROOM-1

WROOM · ESP32-C6 · Active

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ESP32-S2-MINI-1

MINI · ESP32-S2 · NRND

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Every figure here is checked against Espressif’s official datasheets. We’ve taken every care to keep it accurate — but datasheets are dense and mistakes happen, so if something looks off, please report it.

Which should you choose?

These run different SoCs (ESP32-C6 vs ESP32-S2), so they differ in CPU, wireless and peripherals — not just packaging.

Choose ESP32-C6-WROOM-1 if you need

Wi-Fi 6 — better battery life and throughput in busy networks
802.15.4 radio for Thread, Zigbee and Matter-over-Thread mesh
Bluetooth LE
larger flash option (up to 16 MB) for bigger firmware and OTA
active lifecycle (the other is NRND)

Choose ESP32-S2-MINI-1 if you need

faster CPU (240 MHz, Xtensa LX7)
PSRAM for camera frames, audio buffers and LVGL/large displays
native USB-OTG — act as a USB device/host without a USB-UART chip
more usable GPIO (37 vs 23)
smaller footprint (15.4×20 mm)

Size, to scale

ESP32-C6-WROOM-1 — 18×25.5 mm
ESP32-S2-MINI-1 — 15.4×20 mm

Spec differences at a glance

CPU: ESP32-C6-WROOM-1 RISC-V, 1-core · ESP32-S2-MINI-1 Xtensa LX7, 1-core
Max clock: ESP32-C6-WROOM-1 160 MHz · ESP32-S2-MINI-1 240 MHz
SRAM: ESP32-C6-WROOM-1 512 KB · ESP32-S2-MINI-1 320 KB
ROM: ESP32-C6-WROOM-1 320 KB · ESP32-S2-MINI-1 128 KB
Flash options: ESP32-C6-WROOM-1 4 / 8 / 16 MB · ESP32-S2-MINI-1 4 MB
PSRAM: ESP32-C6-WROOM-1 None · ESP32-S2-MINI-1 2 MB (quad)
Wi-Fi: ESP32-C6-WROOM-1 Wi-Fi 6 · ESP32-S2-MINI-1 Wi-Fi 4
Bluetooth: ESP32-C6-WROOM-1 BLE 5.x · ESP32-S2-MINI-1 —
802.15.4 (Thread/Zigbee): ESP32-C6-WROOM-1 Yes · ESP32-S2-MINI-1 No
Usable GPIO: ESP32-C6-WROOM-1 23 · ESP32-S2-MINI-1 37
ADC: ESP32-C6-WROOM-1 7× 12-bit · ESP32-S2-MINI-1 20× 12-bit
USB: ESP32-C6-WROOM-1 USB-Serial-JTAG · ESP32-S2-MINI-1 USB-OTG
UART / SPI / I²C / I²S: ESP32-C6-WROOM-1 2 / 1 / 2 / 1 · ESP32-S2-MINI-1 2 / 2 / 2 / 1
SD/MMC: ESP32-C6-WROOM-1 Yes · ESP32-S2-MINI-1 No
Touch: ESP32-C6-WROOM-1 0 · ESP32-S2-MINI-1 14
Deep sleep: ESP32-C6-WROOM-1 7 µA · ESP32-S2-MINI-1 — µA
Dimensions: ESP32-C6-WROOM-1 18 × 25.5 × 3.1 mm · ESP32-S2-MINI-1 15.4 × 20 × 2.4 mm
Pin count: ESP32-C6-WROOM-1 29 · ESP32-S2-MINI-1 41
Lifecycle: ESP32-C6-WROOM-1 Active · ESP32-S2-MINI-1 NRND
Crypto: ESP32-C6-WROOM-1 AES, SHA, RSA, HMAC, ECC, RNG · ESP32-S2-MINI-1 AES, SHA, RSA, HMAC, RNG

Compute & memory

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	ESP32-C6-WROOM-1	ESP32-S2-MINI-1
CPU≠	RISC-V, 1-core	Xtensa LX7, 1-core
Max clock≠	160 MHz	240 MHz
SRAM≠	512 KB	320 KB
ROM≠	320 KB	128 KB
Flash options≠	4 / 8 / 16 MB	4 MB
PSRAM≠	None	2 MB (quad)
Co-processor	ULP-RISC-V	ULP-RISC-V

Wireless

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	ESP32-C6-WROOM-1	ESP32-S2-MINI-1
Wi-Fi≠	Wi-Fi 6	Wi-Fi 4
Wi-Fi bands	2.4GHz	2.4GHz
Bluetooth≠	BLE 5.x	—
802.15.4 (Thread/Zigbee)≠	Yes	No
Antenna	PCB	PCB

Peripherals & I/O

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	ESP32-C6-WROOM-1	ESP32-S2-MINI-1
Usable GPIO≠	23	37
ADC≠	7× 12-bit	20× 12-bit
USB≠	USB-Serial-JTAG	USB-OTG
UART / SPI / I²C / I²S≠	2 / 1 / 2 / 1	2 / 2 / 2 / 1
TWAI (CAN)	Yes	Yes
SD/MMC≠	Yes	No
Ethernet MAC	No	No
Touch≠	0	14

Power

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	ESP32-C6-WROOM-1	ESP32-S2-MINI-1
Operating voltage	3.0-3.6 V	3.0-3.6 V
Deep sleep≠	7 µA	— µA

Physical

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	ESP32-C6-WROOM-1	ESP32-S2-MINI-1
Dimensions≠	18 × 25.5 × 3.1 mm	15.4 × 20 × 2.4 mm
Pin count≠	29	41
Temp range	-40 to 85 °C	-40 to 85 °C
Mounting	SMD castellated	SMD castellated
Lifecycle≠	Active	NRND

Security

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	ESP32-C6-WROOM-1	ESP32-S2-MINI-1
Secure boot	Yes	Yes
Flash encryption	Yes	Yes
Crypto≠	AES, SHA, RSA, HMAC, ECC, RNG	AES, SHA, RSA, HMAC, RNG
Digital signature	Yes	Yes
TRNG	Yes	Yes