ESP32 Board Specifications
Complete specification comparison across all 23 ESP32 development boards. Every spec sourced from manufacturer datasheets.
| Specification | DKC V4 | S2-DKM-1 | S3-DKC-1 | C3-DKM-1 | C6-DKC-1 | H2-DKM-1 | Seeed Studio XIAO ESP32S3 | Adafruit QT Py S3 | SparkFun Thing Plus - S3 | LILYGO T-Display S3 | Arduino Uno R4 WiFi | Arduino Uno R4 Minima | Arduino Nano ESP32 | Arduino Nano Every | Arduino Mega 2560 Rev3 | Arduino Nano 33 BLE Sense Rev2 | NVIDIA Jetson Orin Nano Developer Kit (8GB) | Google Coral Dev Board | Ledger Nano S Plus | Ledger Nano X | Ledger Flex | Trezor Safe 3 | Trezor Safe 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chip | ESP32 | ESP32-S2 | ESP32-S3 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S3 | ESP32-S3 | ESP32-S3 | ESP32-S3 | RA4M1 + ESP32-S3 | RA4M1 | ESP32-S3 | ATMega4809 | ATMega2560 | nRF52840 | Jetson Orin Nano | NXP i.MX 8M + Edge TPU | ST33K1M5 | ST33K1M5 | ST33K1M5 | Optiga Trust M | Optiga Trust M |
| Manufacturer | Espressif | Espressif | Espressif | Espressif | Espressif | Espressif | Seeed Studio | Adafruit | SparkFun | LILYGO | Arduino | Arduino | Arduino | Arduino | Arduino | Arduino | NVIDIA | Ledger | Ledger | Ledger | Trezor | Trezor | |
| Architecture | Xtensa LX6 | Xtensa LX7 | Xtensa LX7 | RISC-V | RISC-V | RISC-V | Xtensa LX7 | Xtensa LX7 | Xtensa LX7 | Xtensa LX7 | ARM Cortex-M4 | ARM Cortex-M4 | Xtensa LX7 | AVR | AVR | ARM Cortex-M4 | ARM Cortex-A78AE | ARM Cortex-A53 | — | — | — | — | — |
| CPU Cores | 2 | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 6 | 4 | — | — | — | — | — |
| Clock Speed | 240 MHz | 240 MHz | 240 MHz | 160 MHz | 160 MHz | 96 MHz | 240 MHz | 240 MHz | 240 MHz | 240 MHz | 48 MHz | 48 MHz | 240 MHz | 20 MHz | 16 MHz | 64 MHz | 1500 MHz | 1500 MHz | — | — | — | — | — |
| Flash | 4 MB | 4 MB | 8 MB | 4 MB | 8 MB | 4 MB | 8 MB | 8 MB | 16 MB | 16 MB | 0.256 MB | 0.256 MB | 16 MB | 0.048 MB | 0.256 MB | 1 MB | 0 MB | 8000 MB | — | — | — | — | — |
| SRAM | 520 KB | 320 KB | 512 KB | 400 KB | 512 KB | 320 KB | 512 KB | 512 KB | 512 KB | 512 KB | 32 KB | 32 KB | 512 KB | 6 KB | 8 KB | 256 KB | 0 KB | 0 KB | — | — | — | — | — |
| PSRAM | — | 2 MB | 8 MB | — | — | — | 8 MB | — | 8 MB | 8 MB | — | — | 8 MB | — | — | — | — | — | — | — | — | — | — |
| WiFi | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | 802.11ax (WiFi 6) | — | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | — | 802.11 b/g/n | — | — | — | 802.11ac (via M.2) | 802.11ac (2x2 MIMO) | — | — | — | — | — |
| Bluetooth | 4.2 | — | 5.0 | 5.0 | 5.3 | 5.3 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | — | 5.0 | — | — | 5.0 | 5.0 (via M.2) | 5.0 | — | — | — | — | — |
| Thread | — | — | — | — | Yes | Yes | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Zigbee | — | — | — | — | 3.0 | 3.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| GPIO Pins | 34 | 43 | 45 | 22 | 30 | 26 | 11 | 13 | 21 | 14 | 20 | 20 | 14 | 22 | 54 | 14 | 40 | 40 | — | — | — | — | — |
| USB | Micro-USB (UART bridge) | USB-OTG 1.1 | USB-OTG 1.1 + USB-UART | USB 2.0 (CDC) | USB 2.0 (CDC) | USB 2.0 (CDC) | USB-C (OTG) | USB-C (OTG) | USB-C (OTG) | USB-C (OTG) | USB-C (native) | USB-C (native) | USB-C (native) | Micro-USB (UART bridge) | USB-B (UART bridge) | Micro-USB (native) | 4x USB 3.2 + USB-C (debug) | USB 3.0 Type-C + USB 3.0 Type-A | USB-C | USB-C | USB-C | USB-C | USB-C |
| Deep Sleep Current | 10 uA | 22 uA | 7 uA | 5 uA | 7 uA | 8 uA | 14 uA | ~15 uA | ~10 uA | ~15 uA | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Dimensions | 55 x 28 mm | 56 x 25.4 mm | 69 x 25.4 mm | 53.6 x 25.4 mm | 67 x 25.4 mm | 53.6 x 25.4 mm | 21 x 17.5 mm | 22 x 17.8 mm | 58.4 x 22.9 mm | 65 x 25.4 mm | 68.85 x 53.34 mm | 68.85 x 53.34 mm | 45 x 18 mm | 45 x 18 mm | 101.52 x 53.3 mm | 45 x 18 mm | 100 x 79 mm | 88 x 60 mm | 62.39 x 17.40 x 8.24 mm | 72 x 18.6 x 11.75 mm | 78.40 x 56.50 x 7.70 mm | 59 x 32 x 7.4 mm | 67 x 39.26 x 8.62 mm |
| Form Factor | Standard breadboard | Standard breadboard | Standard breadboard | Standard breadboard | Standard breadboard | Standard breadboard | XIAO (ultra-compact) | QT Py (Adafruit compact) | Thing Plus (Feather-compatible) | Custom (with LCD) | Arduino Uno (shield-compatible) | Arduino Uno (shield-compatible) | Arduino Nano | Arduino Nano | Arduino Mega (extended shield-compatible) | Arduino Nano | Jetson developer kit (carrier board) | Single-board computer (Raspberry Pi-sized) | USB stick | USB stick (wireless) | Card-sized (E-Ink touchscreen) | USB stick (compact) | Compact (color touchscreen) |