You are reading a single comment by @Gordon and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
It's listed here: https://www.espruino.com/Bangle.js2#power-consumption
About all you can do without opening it is to look at the battery percentage change after a day of running it...