Question about wearable device with wifi connection

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EduardoWicG

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Hi!

I'm trying to build a wearable device with wifi connection, but I cant find any which is small enough to wear as a bracelet.

My objective is to use a heart beat sensor on this device, connect it to the internet and send it to my database.

Any suggestions? Right now I'm using ESP32
 
Li-Ion is a good choice, as a single cell happily powers an ESP8266 - however, what physical size are you looking for?.
 
You might have a look here:


There are a number of small battery powered ESP videos on YouTube.
 
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