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oritronyesterday at 5:31 PM4 repliesview on HN

I like a good smart watch and I appreciate open source, but an ESP32 isn't a great pick when low power consumption is important and the device is going to be communicating regularly. I'm surprised LILYGO went that direction in a watch form factor.


Replies

serfyesterday at 9:43 PM

an esp32 on an 1100mah battery will last years on deep sleep, and about a day with wifi on and in high power modes.

a pixel watch 4 says they last 30 hours , ambiguously. they use a battery less than half the size. in reality with constant use they'll drop dead in 6 hours.

the thing is clunky and heavy , anyway -- so if it lasts as long as an off the shelf watch who cares?

also, the primary reason : lilygo shoves ESPs into everything.

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jolmgyesterday at 11:02 PM

An advantage of ESP32-S3 could be that it seems possible to run Linux on it.

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smlacyyesterday at 5:45 PM

What would you suggest instead?

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hrimfaxiyesterday at 5:54 PM

Most of their lora devices are ESP32.