Best nRF52840 Development Boards in 2026 (Buying Guide)

Seeed Studio XIAO nRF52840 Sense Bluetooth dev board with IMU and microphone

The best nRF52840 development boards in 2026 — 8 Bluetooth 5 / Thread / Matter boards from Seeed, Adafruit, SparkFun, Makerdiary and Waveshare compared on size, GPIO, sensors, debugging and use case, with honest verdicts and direct Amazon links.