ESP32-WROOM-32E vs ESP32-WROVER-E
ESP32-WROOM-32E
WROOM · ESP32 · 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?
Both are built on the same ESP32 SoC, so CPU and radios are identical — the choice is about memory, form factor and antenna.
Choose ESP32-WROOM-32E if you need
- more usable GPIO (26 vs 24)
- smaller footprint (18×25.5 mm)
Choose ESP32-WROVER-E if you need
- more PSRAM (up to 8 MB)
Size, to scale
- ESP32-WROOM-32E — 18×25.5 mm
- ESP32-WROVER-E — 18×31.4 mm
Spec differences at a glance
- PSRAM: ESP32-WROOM-32E 2 MB (quad) · ESP32-WROVER-E 2 / 8 MB (quad)
- Usable GPIO: ESP32-WROOM-32E 26 · ESP32-WROVER-E 24
- Dimensions: ESP32-WROOM-32E 18 × 25.5 × 3.1 mm · ESP32-WROVER-E 18 × 31.4 × 3.3 mm
Compute & memory
⚑ flag an error| ESP32-WROOM-32E | ESP32-WROVER-E | |
|---|---|---|
| CPU | Xtensa LX6, 2-core | Xtensa LX6, 2-core |
| Max clock | 240 MHz | 240 MHz |
| SRAM | 520 KB | 520 KB |
| ROM | 448 KB | 448 KB |
| Flash options | 4 / 8 / 16 MB | 4 / 8 / 16 MB |
| PSRAM≠ | 2 MB (quad) | 2 / 8 MB (quad) |
| Co-processor | ULP-FSM | ULP-FSM |
Wireless
⚑ flag an error| ESP32-WROOM-32E | ESP32-WROVER-E | |
|---|---|---|
| Wi-Fi | Wi-Fi 4 | Wi-Fi 4 |
| Wi-Fi bands | 2.4GHz | 2.4GHz |
| Bluetooth | BT Classic + BLE | BT Classic + BLE |
| 802.15.4 (Thread/Zigbee) | No | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-WROOM-32E | ESP32-WROVER-E | |
|---|---|---|
| Usable GPIO≠ | 26 | 24 |
| ADC | 18× 12-bit | 18× 12-bit |
| USB | USB-Serial(external) | USB-Serial(external) |
| UART / SPI / I²C / I²S | 3 / 2 / 2 / 2 | 3 / 2 / 2 / 2 |
| TWAI (CAN) | Yes | Yes |
| SD/MMC | Yes | Yes |
| Ethernet MAC | Yes | Yes |
| Touch | 10 | 10 |
Power
⚑ flag an error| ESP32-WROOM-32E | ESP32-WROVER-E | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep | 10 µA | 10 µA |
Physical
⚑ flag an error| ESP32-WROOM-32E | ESP32-WROVER-E | |
|---|---|---|
| Dimensions≠ | 18 × 25.5 × 3.1 mm | 18 × 31.4 × 3.3 mm |
| Pin count | 38 | 38 |
| Temp range | -40 to 85 °C | -40 to 85 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle | Active | Active |
Security
⚑ flag an error| ESP32-WROOM-32E | ESP32-WROVER-E | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto | AES, SHA, RSA, RNG | AES, SHA, RSA, RNG |
| Digital signature | No | No |
| TRNG | Yes | Yes |