[brokenmachine]

Obviously it doesn't make that much difference for a fun project with a large 1000mAh battery, but <44 μA for deep sleep isn't very good.

https://archive.is/2YBHS with an nrf52840 you can get <1uA. It doesn't do wifi but long range BLE can go over 2km range.

[meilily]

Have you tested their newest XIAO MG24, based on Silabs? It's said the power consumption is even better than the nrf52840 model.