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Seeed XIAO nRF52840 vs Seeed XIAO ESP32-C3

Specs side by side, with the best value in each row highlighted. Choose different boards below to build your own comparison.

The short version

  • ›Wi-Fi: only the Seeed XIAO ESP32-C3 has it.
  • ›Thread / Zigbee: only the Seeed XIAO nRF52840 has an 802.15.4 radio.
  • ›Price: the Seeed XIAO ESP32-C3 is cheaper ($5 vs $9.90).
  • ›Speed: the Seeed XIAO ESP32-C3 runs faster (160 MHz vs 64 MHz).
  • ›Memory: the Seeed XIAO ESP32-C3 has more RAM (400 KB vs 256 KB).
  • ›Battery life: the Seeed XIAO nRF52840 sleeps at much lower current (5 µA vs 43 µA).
Specification comparison: Seeed XIAO nRF52840, Seeed XIAO ESP32-C3
SpecSeeed XIAO nRF52840Seeed XIAO ESP32-C3
ChipnRF52840ESP32-C3
CPUArm Cortex-M4FRISC-V single-core
Clock64 MHz160 MHz (best)
Wi-Fi—Wi-Fi 4 (802.11 b/g/n) (best)
BluetoothBluetooth 5 (LE)Bluetooth 5 (LE)
Zigbee / ThreadYes (best)No
GPIO1111
ADC channels6 × 12-bit (best)4 × 12-bit
Flash1 MB4 MB (best)
RAM256 KB400 KB (best)
Logic level3.3 V3.3 V
Power input5V USB-C / LiPo5V USB-C / LiPo
Deep sleep (typ.)~5 µA (best)~43 µA
Active current (typ.)~12 mA (best)~60 mA
Form factorTinyTiny
USBUSB-C (native)USB-C (native)
ProgrammingArduino, CircuitPython, ZephyrArduino, MicroPython, CircuitPython, ESP-IDF
Price (typ.)$9.90$5 (best)
Pinout—Interactive pinout
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Buy: Seeed XIAO nRF52840

Buy: Seeed XIAO ESP32-C3

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