ESP32-C5-WROOM-1 vs ESP32-S2-WROVER

ESP32-C5-WROOM-1

WROOM · ESP32-C5 · New

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ESP32-S2-WROVER

WROVER · ESP32-S2 · Active

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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-C5 vs ESP32-S2), so they differ in CPU, wireless and peripherals — not just packaging.

Choose ESP32-C5-WROOM-1 if you need

Wi-Fi 6 — better battery life and throughput in busy networks
5 GHz Wi-Fi — less congestion and higher throughput than 2.4 GHz-only
802.15.4 radio for Thread, Zigbee and Matter-over-Thread mesh
Bluetooth LE
more PSRAM (up to 8 MB)

Choose ESP32-S2-WROVER if you need

native USB-OTG — act as a USB device/host without a USB-UART chip
more usable GPIO (37 vs 22)

Size, to scale

ESP32-C5-WROOM-1 — 18×27.5 mm
ESP32-S2-WROVER — 18×31 mm

Spec differences at a glance

CPU: ESP32-C5-WROOM-1 RISC-V, 1-core · ESP32-S2-WROVER Xtensa LX7, 1-core
SRAM: ESP32-C5-WROOM-1 384 KB · ESP32-S2-WROVER 320 KB
ROM: ESP32-C5-WROOM-1 320 KB · ESP32-S2-WROVER 128 KB
Flash options: ESP32-C5-WROOM-1 4 / 8 / 16 / 32 MB · ESP32-S2-WROVER 4 / 8 / 16 MB
PSRAM: ESP32-C5-WROOM-1 8 MB (quad) · ESP32-S2-WROVER 2 MB (quad)
Wi-Fi: ESP32-C5-WROOM-1 Wi-Fi 6 · ESP32-S2-WROVER Wi-Fi 4
Wi-Fi bands: ESP32-C5-WROOM-1 2.4+5GHz · ESP32-S2-WROVER 2.4GHz
Bluetooth: ESP32-C5-WROOM-1 BLE 5.x · ESP32-S2-WROVER —
802.15.4 (Thread/Zigbee): ESP32-C5-WROOM-1 Yes · ESP32-S2-WROVER No
Usable GPIO: ESP32-C5-WROOM-1 22 · ESP32-S2-WROVER 37
ADC: ESP32-C5-WROOM-1 6× 12-bit · ESP32-S2-WROVER 20× 12-bit
USB: ESP32-C5-WROOM-1 USB-Serial-JTAG · ESP32-S2-WROVER USB-OTG
UART / SPI / I²C / I²S: ESP32-C5-WROOM-1 2 / 1 / 1 / 1 · ESP32-S2-WROVER 2 / 2 / 2 / 1
SD/MMC: ESP32-C5-WROOM-1 Yes · ESP32-S2-WROVER No
Touch: ESP32-C5-WROOM-1 0 · ESP32-S2-WROVER 14
Dimensions: ESP32-C5-WROOM-1 18 × 27.5 × 3.3 mm · ESP32-S2-WROVER 18 × 31 × 3.3 mm
Pin count: ESP32-C5-WROOM-1 29 · ESP32-S2-WROVER 42
Lifecycle: ESP32-C5-WROOM-1 New · ESP32-S2-WROVER Active
Crypto: ESP32-C5-WROOM-1 AES, SHA, RSA, HMAC, ECC, ECDSA, RNG · ESP32-S2-WROVER AES, SHA, RSA, HMAC, RNG

Compute & memory

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	ESP32-C5-WROOM-1	ESP32-S2-WROVER
CPU≠	RISC-V, 1-core	Xtensa LX7, 1-core
Max clock	240 MHz	240 MHz
SRAM≠	384 KB	320 KB
ROM≠	320 KB	128 KB
Flash options≠	4 / 8 / 16 / 32 MB	4 / 8 / 16 MB
PSRAM≠	8 MB (quad)	2 MB (quad)
Co-processor	ULP-RISC-V	ULP-RISC-V

Wireless

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	ESP32-C5-WROOM-1	ESP32-S2-WROVER
Wi-Fi≠	Wi-Fi 6	Wi-Fi 4
Wi-Fi bands≠	2.4+5GHz	2.4GHz
Bluetooth≠	BLE 5.x	—
802.15.4 (Thread/Zigbee)≠	Yes	No
Antenna	PCB	PCB

Peripherals & I/O

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	ESP32-C5-WROOM-1	ESP32-S2-WROVER
Usable GPIO≠	22	37
ADC≠	6× 12-bit	20× 12-bit
USB≠	USB-Serial-JTAG	USB-OTG
UART / SPI / I²C / I²S≠	2 / 1 / 1 / 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-C5-WROOM-1	ESP32-S2-WROVER
Operating voltage	3.0-3.6 V	3.0-3.6 V
Deep sleep	— µA	— µA

Physical

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	ESP32-C5-WROOM-1	ESP32-S2-WROVER
Dimensions≠	18 × 27.5 × 3.3 mm	18 × 31 × 3.3 mm
Pin count≠	29	42
Temp range	-40 to 85 °C	-40 to 85 °C
Mounting	SMD castellated	SMD castellated
Lifecycle≠	New	Active

Security

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	ESP32-C5-WROOM-1	ESP32-S2-WROVER
Secure boot	Yes	Yes
Flash encryption	Yes	Yes
Crypto≠	AES, SHA, RSA, HMAC, ECC, ECDSA, RNG	AES, SHA, RSA, HMAC, RNG
Digital signature	Yes	Yes
TRNG	Yes	Yes