ESP32-S2-WROVER vs ESP32-WROOM-32E
ESP32-S2-WROVER
WROVER · ESP32-S2 · Active
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ESP32-WROOM-32E
WROOM · ESP32 · 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-S2 vs ESP32), so they differ in CPU, wireless and peripherals, not just packaging.
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 26)
Choose ESP32-WROOM-32E if you need
- Bluetooth LE
- 2 CPU cores vs 1: more headroom for RTOS / parallel work
- Ethernet MAC for wired networking (add an external PHY)
- smaller footprint (18×25.5 mm)
Size, to scale
- ESP32-S2-WROVER: 18×31 mm
- ESP32-WROOM-32E: 18×25.5 mm
Spec differences at a glance
- CPU: ESP32-S2-WROVER Xtensa LX7, 1-core · ESP32-WROOM-32E Xtensa LX6, 2-core
- SRAM: ESP32-S2-WROVER 320 KB · ESP32-WROOM-32E 520 KB
- ROM: ESP32-S2-WROVER 128 KB · ESP32-WROOM-32E 448 KB
- Co-processor: ESP32-S2-WROVER ULP-RISC-V · ESP32-WROOM-32E ULP-FSM
- Bluetooth: ESP32-S2-WROVER — · ESP32-WROOM-32E BT Classic + BLE
- Usable GPIO: ESP32-S2-WROVER 37 · ESP32-WROOM-32E 26
- ADC: ESP32-S2-WROVER 20× 12-bit · ESP32-WROOM-32E 18× 12-bit
- USB: ESP32-S2-WROVER USB-OTG · ESP32-WROOM-32E USB-Serial(external)
- UART / SPI / I²C / I²S: ESP32-S2-WROVER 2 / 2 / 2 / 1 · ESP32-WROOM-32E 3 / 2 / 2 / 2
- SD/MMC: ESP32-S2-WROVER No · ESP32-WROOM-32E Yes
- Ethernet MAC: ESP32-S2-WROVER No · ESP32-WROOM-32E Yes
- Touch: ESP32-S2-WROVER 14 · ESP32-WROOM-32E 10
- Deep sleep: ESP32-S2-WROVER — µA · ESP32-WROOM-32E 10 µA
- Dimensions: ESP32-S2-WROVER 18 × 31 × 3.3 mm · ESP32-WROOM-32E 18 × 25.5 × 3.1 mm
- Pin count: ESP32-S2-WROVER 42 · ESP32-WROOM-32E 38
- Crypto: ESP32-S2-WROVER AES, SHA, RSA, HMAC, RNG · ESP32-WROOM-32E AES, SHA, RSA, RNG
- Digital signature: ESP32-S2-WROVER Yes · ESP32-WROOM-32E No
Compute & memory
⚑ flag an error| ESP32-S2-WROVER | ESP32-WROOM-32E | |
|---|---|---|
| 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 / 8 / 16 MB | 4 / 8 / 16 MB |
| PSRAM | 2 MB (quad) | 2 MB (quad) |
| Co-processor≠ | ULP-RISC-V | ULP-FSM |
Wireless
⚑ flag an error| ESP32-S2-WROVER | ESP32-WROOM-32E | |
|---|---|---|
| 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
⚑ flag an error| ESP32-S2-WROVER | ESP32-WROOM-32E | |
|---|---|---|
| Usable GPIO≠ | 37 | 26 |
| 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
⚑ flag an error| ESP32-S2-WROVER | ESP32-WROOM-32E | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | — µA | 10 µA |
Physical
⚑ flag an error| ESP32-S2-WROVER | ESP32-WROOM-32E | |
|---|---|---|
| Dimensions≠ | 18 × 31 × 3.3 mm | 18 × 25.5 × 3.1 mm |
| Pin count≠ | 42 | 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-WROVER | ESP32-WROOM-32E | |
|---|---|---|
| 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 |