I’ve been experimenting with nearly all ESP32-C6 and H2 boards, except the SparkFun boards.
What I have discovered is that the H2 boards use about half the power of C6 in deep sleep, when active and not sending Zigbee, and when sending Zigbee. This makes a big difference in battery life for a battery-powered sensor.
An H2 version of the SparkFun Qwiic Pocket Development Board would be perfect for Zigbee and Thread devices
The H2 is supported by the Espressif Arduino Zigbee library.
The H2 module is a close drop-in to the C6, and it looks like the board support both C6 and H2 variants with 0 Ohm populate options
BTW, when will the SparkFun Qwiic Pocket Development Board be back in stock?