ESP32-S2-MINI-2 vs ESP32-WROVER-E

ESP32-S2-MINI-2

MINI · ESP32-S2 · Active

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ESP32-WROVER-E

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

Choose ESP32-S2-MINI-2 if you need

native USB-OTG — act as a USB device/host without a USB-UART chip
more usable GPIO (37 vs 24)
smaller footprint (15.4×20.5 mm)

Choose ESP32-WROVER-E if you need

Bluetooth LE
2 CPU cores vs 1 — more headroom for RTOS / parallel work
more PSRAM (up to 8 MB)
larger flash option (up to 16 MB) for bigger firmware and OTA
Ethernet MAC for wired networking (add an external PHY)

Size, to scale

ESP32-S2-MINI-2 — 15.4×20.5 mm
ESP32-WROVER-E — 18×31.4 mm

Spec differences at a glance

CPU: ESP32-S2-MINI-2 Xtensa LX7, 1-core · ESP32-WROVER-E Xtensa LX6, 2-core
SRAM: ESP32-S2-MINI-2 320 KB · ESP32-WROVER-E 520 KB
ROM: ESP32-S2-MINI-2 128 KB · ESP32-WROVER-E 448 KB
Flash options: ESP32-S2-MINI-2 4 MB · ESP32-WROVER-E 4 / 8 / 16 MB
PSRAM: ESP32-S2-MINI-2 2 MB (quad) · ESP32-WROVER-E 2 / 8 MB (quad)
Co-processor: ESP32-S2-MINI-2 ULP-RISC-V · ESP32-WROVER-E ULP-FSM
Bluetooth: ESP32-S2-MINI-2 — · ESP32-WROVER-E BT Classic + BLE
Usable GPIO: ESP32-S2-MINI-2 37 · ESP32-WROVER-E 24
ADC: ESP32-S2-MINI-2 20× 12-bit · ESP32-WROVER-E 18× 12-bit
USB: ESP32-S2-MINI-2 USB-OTG · ESP32-WROVER-E USB-Serial(external)
UART / SPI / I²C / I²S: ESP32-S2-MINI-2 2 / 2 / 2 / 1 · ESP32-WROVER-E 3 / 2 / 2 / 2
SD/MMC: ESP32-S2-MINI-2 No · ESP32-WROVER-E Yes
Ethernet MAC: ESP32-S2-MINI-2 No · ESP32-WROVER-E Yes
Touch: ESP32-S2-MINI-2 14 · ESP32-WROVER-E 10
Deep sleep: ESP32-S2-MINI-2 — µA · ESP32-WROVER-E 10 µA
Dimensions: ESP32-S2-MINI-2 15.4 × 20.5 × 2.4 mm · ESP32-WROVER-E 18 × 31.4 × 3.3 mm
Pin count: ESP32-S2-MINI-2 41 · ESP32-WROVER-E 38
Crypto: ESP32-S2-MINI-2 AES, SHA, RSA, HMAC, RNG · ESP32-WROVER-E AES, SHA, RSA, RNG
Digital signature: ESP32-S2-MINI-2 Yes · ESP32-WROVER-E No

Compute & memory

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	ESP32-S2-MINI-2	ESP32-WROVER-E
CPU≠	Xtensa LX7, 1-core	Xtensa LX6, 2-core
Max clock	240 MHz	240 MHz
SRAM≠	320 KB	520 KB
ROM≠	128 KB	448 KB
Flash options≠	4 MB	4 / 8 / 16 MB
PSRAM≠	2 MB (quad)	2 / 8 MB (quad)
Co-processor≠	ULP-RISC-V	ULP-FSM

Wireless

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	ESP32-S2-MINI-2	ESP32-WROVER-E
Wi-Fi	Wi-Fi 4	Wi-Fi 4
Wi-Fi bands	2.4GHz	2.4GHz
Bluetooth≠	—	BT Classic + BLE
802.15.4 (Thread/Zigbee)	No	No
Antenna	PCB	PCB

Peripherals & I/O

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	ESP32-S2-MINI-2	ESP32-WROVER-E
Usable GPIO≠	37	24
ADC≠	20× 12-bit	18× 12-bit
USB≠	USB-OTG	USB-Serial(external)
UART / SPI / I²C / I²S≠	2 / 2 / 2 / 1	3 / 2 / 2 / 2
TWAI (CAN)	Yes	Yes
SD/MMC≠	No	Yes
Ethernet MAC≠	No	Yes
Touch≠	14	10

Power

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	ESP32-S2-MINI-2	ESP32-WROVER-E
Operating voltage	3.0-3.6 V	3.0-3.6 V
Deep sleep≠	— µA	10 µA

Physical

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	ESP32-S2-MINI-2	ESP32-WROVER-E
Dimensions≠	15.4 × 20.5 × 2.4 mm	18 × 31.4 × 3.3 mm
Pin count≠	41	38
Temp range	-40 to 85 °C	-40 to 85 °C
Mounting	SMD castellated	SMD castellated
Lifecycle	Active	Active

Security

⚑ flag an error

	ESP32-S2-MINI-2	ESP32-WROVER-E
Secure boot	Yes	Yes
Flash encryption	Yes	Yes
Crypto≠	AES, SHA, RSA, HMAC, RNG	AES, SHA, RSA, RNG
Digital signature≠	Yes	No
TRNG	Yes	Yes