[Brusco_RF]

I also happen to be working on an ultra-low power project with an ESP32.

It is hard to beat that 5uA deep-sleep current!

[15155]

Try <1µA/MHz active current consumption on the Ambiq Apollo4 chips.

[Brusco_RF]

Thanks for that, looks interesting. One note, their website [1] claims 5uA/MHz, not 1

[1] https://ambiq.com/apollo4/

[15155]

Yes, that's correct. I had confused it with the total consumption at rated speed - ~1mA and mixed up my figures.