ESP32-C5-WROOM-1 vs ESP32-C61-WROOM-1
ESP32-C5-WROOM-1
WROOM · ESP32-C5 · New
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ESP32-C61-WROOM-1
WROOM · ESP32-C61 · New
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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-C61), 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
- 802.15.4 radio for Thread, Zigbee and Matter-over-Thread mesh
- higher clock (240 MHz)
- larger flash option (up to 32 MB) for bigger firmware and OTA
Choose ESP32-C61-WROOM-1 if you need
- more usable GPIO (23 vs 22)
Size, to scale
- ESP32-C5-WROOM-1: 18×27.5 mm
- ESP32-C61-WROOM-1: 18×25.5 mm
Spec differences at a glance
- Max clock: ESP32-C5-WROOM-1 240 MHz · ESP32-C61-WROOM-1 160 MHz
- SRAM: ESP32-C5-WROOM-1 384 KB · ESP32-C61-WROOM-1 320 KB
- ROM: ESP32-C5-WROOM-1 320 KB · ESP32-C61-WROOM-1 256 KB
- Flash options: ESP32-C5-WROOM-1 4 / 8 / 16 / 32 MB · ESP32-C61-WROOM-1 8 / 16 MB
- PSRAM: ESP32-C5-WROOM-1 8 MB (quad) · ESP32-C61-WROOM-1 2 / 8 MB (quad)
- Co-processor: ESP32-C5-WROOM-1 ULP-RISC-V · ESP32-C61-WROOM-1 none
- Wi-Fi bands: ESP32-C5-WROOM-1 2.4+5GHz · ESP32-C61-WROOM-1 2.4GHz
- 802.15.4 (Thread/Zigbee): ESP32-C5-WROOM-1 Yes · ESP32-C61-WROOM-1 No
- Usable GPIO: ESP32-C5-WROOM-1 22 · ESP32-C61-WROOM-1 23
- ADC: ESP32-C5-WROOM-1 6× 12-bit · ESP32-C61-WROOM-1 4× 12-bit
- UART / SPI / I²C / I²S: ESP32-C5-WROOM-1 2 / 1 / 1 / 1 · ESP32-C61-WROOM-1 3 / 1 / 1 / 1
- TWAI (CAN): ESP32-C5-WROOM-1 Yes · ESP32-C61-WROOM-1 No
- Deep sleep: ESP32-C5-WROOM-1 — µA · ESP32-C61-WROOM-1 10 µA
- Dimensions: ESP32-C5-WROOM-1 18 × 27.5 × 3.3 mm · ESP32-C61-WROOM-1 18 × 25.5 × 3.1 mm
- Crypto: ESP32-C5-WROOM-1 AES, SHA, RSA, HMAC, ECC, ECDSA, RNG · ESP32-C61-WROOM-1 AES, SHA, ECC, ECDSA, RNG
Compute & memory
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| CPU | RISC-V, 1-core | RISC-V, 1-core |
| Max clock≠ | 240 MHz | 160 MHz |
| SRAM≠ | 384 KB | 320 KB |
| ROM≠ | 320 KB | 256 KB |
| Flash options≠ | 4 / 8 / 16 / 32 MB | 8 / 16 MB |
| PSRAM≠ | 8 MB (quad) | 2 / 8 MB (quad) |
| Co-processor≠ | ULP-RISC-V | none |
Wireless
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C61-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 | No |
| Antenna | PCB | PCB |
Peripherals & I/O
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Usable GPIO≠ | 22 | 23 |
| ADC≠ | 6× 12-bit | 4× 12-bit |
| USB | USB-Serial-JTAG | USB-Serial-JTAG |
| UART / SPI / I²C / I²S≠ | 2 / 1 / 1 / 1 | 3 / 1 / 1 / 1 |
| TWAI (CAN)≠ | Yes | No |
| SD/MMC | Yes | Yes |
| Ethernet MAC | No | No |
| Touch | 0 | 0 |
Power
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Operating voltage | 3.0-3.6 V | 3.0-3.6 V |
| Deep sleep≠ | — µA | 10 µA |
Physical
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C61-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 | New |
Security
⚑ flag an error| ESP32-C5-WROOM-1 | ESP32-C61-WROOM-1 | |
|---|---|---|
| Secure boot | Yes | Yes |
| Flash encryption | Yes | Yes |
| Crypto≠ | AES, SHA, RSA, HMAC, ECC, ECDSA, RNG | AES, SHA, ECC, ECDSA, RNG |
| Digital signature | Yes | Yes |
| TRNG | Yes | Yes |