ESP32-C5-WROOM-1 vs ESP32-C6-WROOM-1
ESP32-C5-WROOM-1
WROOM · ESP32-C5 · New
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ESP32-C6-WROOM-1
WROOM · ESP32-C6 · 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-C6), so they differ in CPU, wireless and peripherals — not just packaging.
Choose ESP32-C5-WROOM-1 if you need
- 5 GHz Wi-Fi — less congestion and higher throughput than 2.4 GHz-only
- higher clock (240 MHz)
- PSRAM for camera frames, audio buffers and LVGL/large displays
- larger flash option (up to 32 MB) for bigger firmware and OTA
Choose ESP32-C6-WROOM-1 if you need
- more usable GPIO (23 vs 22)
Size, to scale
- ESP32-C5-WROOM-1 — 18×27.5 mm
- ESP32-C6-WROOM-1 — 18×25.5 mm
Spec differences at a glance
- Max clock: ESP32-C5-WROOM-1 240 MHz · ESP32-C6-WROOM-1 160 MHz
- SRAM: ESP32-C5-WROOM-1 384 KB · ESP32-C6-WROOM-1 512 KB
- Flash options: ESP32-C5-WROOM-1 4 / 8 / 16 / 32 MB · ESP32-C6-WROOM-1 4 / 8 / 16 MB
- PSRAM: ESP32-C5-WROOM-1 8 MB (quad) · ESP32-C6-WROOM-1 None
- Wi-Fi bands: ESP32-C5-WROOM-1 2.4+5GHz · ESP32-C6-WROOM-1 2.4GHz
- Usable GPIO: ESP32-C5-WROOM-1 22 · ESP32-C6-WROOM-1 23
- ADC: ESP32-C5-WROOM-1 6× 12-bit · ESP32-C6-WROOM-1 7× 12-bit
- UART / SPI / I²C / I²S: ESP32-C5-WROOM-1 2 / 1 / 1 / 1 · ESP32-C6-WROOM-1 2 / 1 / 2 / 1
- Deep sleep: ESP32-C5-WROOM-1 — µA · ESP32-C6-WROOM-1 7 µA
- Dimensions: ESP32-C5-WROOM-1 18 × 27.5 × 3.3 mm · ESP32-C6-WROOM-1 18 × 25.5 × 3.1 mm
- Lifecycle: ESP32-C5-WROOM-1 New · ESP32-C6-WROOM-1 Active
- Crypto: ESP32-C5-WROOM-1 AES, SHA, RSA, HMAC, ECC, ECDSA, RNG · ESP32-C6-WROOM-1 AES, SHA, RSA, HMAC, ECC, RNG
Compute & memory
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C6-WROOM-1 | |
|---|---|---|
| CPU | RISC-V, 1-core | RISC-V, 1-core |
| Max clock≠ | 240 MHz | 160 MHz |
| SRAM≠ | 384 KB | 512 KB |
| ROM | 320 KB | 320 KB |
| Flash options≠ | 4 / 8 / 16 / 32 MB | 4 / 8 / 16 MB |
| PSRAM≠ | 8 MB (quad) | None |
| Co-processor | ULP-RISC-V | ULP-RISC-V |
Wireless
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C6-WROOM-1 | |
|---|---|---|
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6 |
| Wi-Fi bands≠ | 2.4+5GHz | 2.4GHz |
| Bluetooth | BLE 5.x | BLE 5.x |
| 802.15.4 (Thread/Zigbee) | Yes | Yes |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C6-WROOM-1 | |
|---|---|---|
| Usable GPIO≠ | 22 | 23 |
| ADC≠ | 6× 12-bit | 7× 12-bit |
| USB | USB-Serial-JTAG | USB-Serial-JTAG |
| UART / SPI / I²C / I²S≠ | 2 / 1 / 1 / 1 | 2 / 1 / 2 / 1 |
| TWAI (CAN) | Yes | Yes |
| SD/MMC | Yes | Yes |
| Ethernet MAC | No | No |
| Touch | 0 | 0 |
Power
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C6-WROOM-1 | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | — µA | 7 µA |
Physical
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C6-WROOM-1 | |
|---|---|---|
| Dimensions≠ | 18 × 27.5 × 3.3 mm | 18 × 25.5 × 3.1 mm |
| Pin count | 29 | 29 |
| Temp range | -40 to 85 °C | -40 to 85 °C |
| Mounting | SMD castellated | SMD castellated |
| Lifecycle≠ | New | Active |
Security
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C6-WROOM-1 | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, RSA, HMAC, ECC, ECDSA, RNG | AES, SHA, RSA, HMAC, ECC, RNG |
| Digital signature | Yes | Yes |
| TRNG | Yes | Yes |