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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Figures here are compiled from Espressif's official datasheets, with the source linked on each page. Mistakes are possible, 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