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by zaarn 2521 days ago
ESP32 uses less power. When you use deep-sleep, you can draw as low as 40microAmps, a sensor I've build on a ESP32 has been running for 3 months on the same battery and I expect one more out of it. The battery is a 2200mA LiPo 18650, so nothing that extraordinary either.

The Pi0W probably won't run a day on the same battery.
1 comments
KaiserPro 2521 days ago
The ESP32 has deep sleep, but it uses about the same power as the pizero when running. The ESP32 is a really power hungry:

http://www.geekstips.com/wp-content/uploads/2017/10/esp32-po...

vs

https://raspi.tv/2017/how-much-power-does-pi-zero-w-use

Considering that he pi as way more ram, an SD card and a GPU, and is running 4 times as fast.

the important take away is that they have different use cases.

link
zaarn 2521 days ago
Though it's important to keep in mind that deep sleep can fairly long, if you use external triggers, you can go days or months in inactivity, which saves A LOT of power.

Though I do agree it depends on your use case, if you're plugged into the wall, a Pi0 might be the better option.

link